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  • Use CompiledQuery.Compile to improve LINQ to SQL performance

    - by Michael Freidgeim
    After reading DLinq (Linq to SQL) Performance and in particular Part 4  I had a few questions. If CompiledQuery.Compile gives so much benefits, why not to do it for all Linq To Sql queries? Is any essential disadvantages of compiling all select queries? What are conditions, when compiling makes whose performance, for how much percentage? World be good to have default on application config level or on DBML level to specify are all select queries to be compiled? And the same questions about Entity Framework CompiledQuery Class. However in comments I’ve found answer  of the author ricom 6 Jul 2007 3:08 AM Compiling the query makes it durable. There is no need for this, nor is there any desire, unless you intend to run that same query many times. SQL provides regular select statements, prepared select statements, and stored procedures for a reason.  Linq now has analogs. Also from 10 Tips to Improve your LINQ to SQL Application Performance   If you are using CompiledQuery make sure that you are using it more than once as it is more costly than normal querying for the first time. The resulting function coming as a CompiledQuery is an object, having the SQL statement and the delegate to apply it.  And your delegate has the ability to replace the variables (or parameters) in the resulting query. However I feel that many developers are not informed enough about benefits of Compile. I think that tools like FxCop and Resharper should check the queries  and suggest if compiling is recommended. Related Articles for LINQ to SQL: MSDN How to: Store and Reuse Queries (LINQ to SQL) 10 Tips to Improve your LINQ to SQL Application Performance Related Articles for Entity Framework: MSDN: CompiledQuery Class Exploring the Performance of the ADO.NET Entity Framework - Part 1 Exploring the Performance of the ADO.NET Entity Framework – Part 2 ADO.NET Entity Framework 4.0: Making it fast through Compiled Query

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  • Only One GPU Detected in the Nvidia Quadra NVS 450

    - by Kyle Brandt
    I just built myself an new workstation and now only 2 of 3 monitors are working. I built the nvidia driver by downloading it and installing with ./Nvidia... Before when I ran nvidia-settings I saw two GPUs listed but now I only see one. Xorg Config (Not sure how I ended up with 3 devices in there): # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 256.35 (buildmeister@builder101) Wed Jun 16 19:25:39 PDT 2010 Section "ServerLayout" # Removed Option "Xinerama" "1" Identifier "Layout0" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor1" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor2" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:6:0:0" EndSection Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:5:0:0" EndSection Section "Device" Identifier "Device2" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:3:0:0" EndSection Section "Screen" # Removed Option "TwinView" "0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+275, DFP-3: nvidia-auto-select +1680+0" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "TwinView" "1" Option "TwinViewXineramaInfoOrder" "DFP-3" Option "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-3: nvidia-auto-select +1680+0" SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" # Removed Option "metamodes" "DFP-3: nvidia-auto-select +0+0" Identifier "Screen1" Device "Device1" Monitor "Monitor1" DefaultDepth 24 Option "TwinView" "0" Option "metamodes" "nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen2" Device "Device2" Monitor "Monitor2" DefaultDepth 24 Option "TwinView" "0" Option "metamodes" "nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection lscpi: 00:00.0 Host bridge: Intel Corporation 5520/5500/X58 I/O Hub to ESI Port (rev 13) 00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 13) 00:02.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 2 (rev 13) 00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 13) 00:10.0 PIC: Intel Corporation 5520/5500/X58 Physical and Link Layer Registers Port 0 (rev 13) 00:10.1 PIC: Intel Corporation 5520/5500/X58 Routing and Protocol Layer Registers Port 0 (rev 13) 00:11.0 PIC: Intel Corporation 5520/5500 Physical and Link Layer Registers Port 1 (rev 13) 00:11.1 PIC: Intel Corporation 5520/5500 Routing & Protocol Layer Register Port 1 (rev 13) 00:13.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub I/OxAPIC Interrupt Controller (rev 13) 00:14.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub System Management Registers (rev 13) 00:14.1 PIC: Intel Corporation 5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 13) 00:14.2 PIC: Intel Corporation 5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 13) 00:15.0 PIC: Intel Corporation 5520/5500/X58 Trusted Execution Technology Registers (rev 13) 00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4 00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5 00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6 00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller 00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1 00:1c.1 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 2 00:1c.3 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 4 00:1c.4 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 5 00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1 00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2 00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3 00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90) 00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller 00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1 00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller 00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2 01:00.0 IDE interface: Device 1b4b:91a3 (rev 11) 02:00.0 USB Controller: NEC Corporation Device 0194 (rev 03) 03:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 04:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 04:02.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 05:00.0 3D controller: nVidia Corporation G98 [Quadro NVS 450] (rev a1) 06:00.0 VGA compatible controller: nVidia Corporation G98 [Quadro NVS 450] (rev a1) 08:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 08:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 09:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03) 09:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03) 0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) 0b:06.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)

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  • SUM of metric for normalized logical hierarchy

    - by Alex254
    Suppose there's a following table Table1, describing parent-child relationship and metric: Parent | Child | Metric (of a child) ------------------------------------ name0 | name1 | a name0 | name2 | b name1 | name3 | c name2 | name4 | d name2 | name5 | e name3 | name6 | f Characteristics: 1) Child always has 1 and only 1 parent; 2) Parent can have multiple children (name2 has name4 and name5 as children); 3) Number of levels in this "hierarchy" and number of children for any given parent are arbitrary and do not depend on each other; I need SQL request that will return result set with each name and a sum of metric of all its descendants down to the bottom level plus itself, so for this example table the result would be (look carefully at name1): Name | Metric ------------------ name1 | a + c + f name2 | b + d + e name3 | c + f name4 | d name5 | e name6 | f (name0 is irrelevant and can be excluded). It should be ANSI or Teradata SQL. I got as far as a recursive query that can return a SUM (metric) of all descendants of a given name: WITH RECURSIVE temp_table (Child, metric) AS ( SELECT root.Child, root.metric FROM table1 root WHERE root.Child = 'name1' UNION ALL SELECT indirect.Child, indirect.metric FROM temp_table direct, table1 indirect WHERE direct.Child = indirect.Parent) SELECT SUM(metric) FROM temp_table; Is there a way to turn this query into a function that takes name as an argument and returns this sum, so it can be called like this? SELECT Sum_Of_Descendants (Child) FROM Table1; Any suggestions about how to approach this from a different angle would be appreciated as well, because even if the above way is implementable, it will be of poor performance - there would be a lot of iterations of reading metrics (value f would be read 3 times in this example). Ideally, the query should read a metric of each name only once.

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  • Procedure or function has too many arguments specified

    - by bullpit
    This error took me a while to figure out. I was using SqlDataSource with stored procedures for SELECT and UPDATE commands. The SELECT worked fine. Then I added UPDATE command and while trying to update, I would get this error: "Procedure of function has too many arguments specified" Apparently, good guys at .NET decided it is necessary to send SELECT parameters with the UPDATE command as well. So when I was sending the required parameters to the UPDATE sp, in reality, it was also getting my SELECT parameters, and thus failing. I had to add the extra parameters in the UPDATE stored procedure and make them NULLABLE so that they are not required....phew... Here is piece of SP with unused parameters. ALTER PROCEDURE [dbo].[UpdateMaintenanceRecord]        @RecordID INT     ,@District VARCHAR(255)     ,@Location VARCHAR(255)         --UNUSED PARAMETERS     ,@MTBillTo VARCHAR(255) = NULL     ,@SerialNumber VARCHAR(255) = NULL     ,@PartNumber VARCHAR(255) = NULL Update: I was getting that error because unkowingly, I had bound the extra fields in my GridVeiw with Bind() call. I changed all the extra one's, which did not need to be in Update, to Eval() and everything works fine.

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  • Geekswithblogs.net Influencer Programm

    - by Staff of Geeks
    Recently, @StaffOfGeeks announced to a select group of bloggers, the Geekswithblogs.net Influencer Program.  Here is a little detail about the program. Description (from Influencer Page): Geekswithblogs.net is a community of bloggers passionate about contributing information to the world of developers and IT professionals. Our bloggers are some of the best in the world and receive honors on a regular basis for outside companies (such as the Microsoft© MVP Program). The Geekswithblogs.net Influencer Program is our way as Staff of Geeks to show our appreciation for those bloggers who have the greatest influence on the site. Each influencer in the program is awarded by the amount of posts, views, and comments they receive on their posts in the previous quarter. Each quarter, we select the top 25 bloggers of influence and give them special access to products and services we have obtained through our network of partners. Here is how it works.  Each quarter we select the top 25 bloggers bases on the amount of posts that created in that quarter, and apply points to the views and comments those posts receive.  The selection is purely off of the numbers, we do not select any based on any other basis.  In fact in the first round, several of our key bloggers did not qualify in the top 25.  Though they are still loved dearly, we wanted a program that anyone could be a part of if they put in the hard work. This said, the first quarter ends at the end of March and we will have another round of influencers joining us.  Keep the posts rolling and maybe you will be selected as an influencer! Visit the influencers page to see who has the greatest influence on Geekswithblogs right now.   Technorati Tags: Geekswithblogs

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  • Only One GPU Detected in the Nvidia Quadro NVS 450

    - by Kyle Brandt
    I just built myself an new workstation and now only 2 of 3 monitors are working. I built the nvidia driver by downloading it and installing with ./Nvidia... Before when I ran nvidia-settings I saw two GPUs listed but now I only see one. Xorg Config (Not sure how I ended up with 3 devices in there): # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 256.35 (buildmeister@builder101) Wed Jun 16 19:25:39 PDT 2010 Section "ServerLayout" # Removed Option "Xinerama" "1" Identifier "Layout0" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor1" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor2" VendorName "Unknown" ModelName "DELL E207WFP" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:6:0:0" EndSection Section "Device" Identifier "Device1" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:5:0:0" EndSection Section "Device" Identifier "Device2" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro NVS 450" BusID "PCI:3:0:0" EndSection Section "Screen" # Removed Option "TwinView" "0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+275, DFP-3: nvidia-auto-select +1680+0" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "TwinView" "1" Option "TwinViewXineramaInfoOrder" "DFP-3" Option "metamodes" "DFP-0: nvidia-auto-select +0+0, DFP-3: nvidia-auto-select +1680+0" SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" # Removed Option "metamodes" "DFP-3: nvidia-auto-select +0+0" Identifier "Screen1" Device "Device1" Monitor "Monitor1" DefaultDepth 24 Option "TwinView" "0" Option "metamodes" "nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection Section "Screen" Identifier "Screen2" Device "Device2" Monitor "Monitor2" DefaultDepth 24 Option "TwinView" "0" Option "metamodes" "nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection lscpi: 00:00.0 Host bridge: Intel Corporation 5520/5500/X58 I/O Hub to ESI Port (rev 13) 00:01.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 1 (rev 13) 00:02.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 2 (rev 13) 00:03.0 PCI bridge: Intel Corporation 5520/5500/X58 I/O Hub PCI Express Root Port 3 (rev 13) 00:10.0 PIC: Intel Corporation 5520/5500/X58 Physical and Link Layer Registers Port 0 (rev 13) 00:10.1 PIC: Intel Corporation 5520/5500/X58 Routing and Protocol Layer Registers Port 0 (rev 13) 00:11.0 PIC: Intel Corporation 5520/5500 Physical and Link Layer Registers Port 1 (rev 13) 00:11.1 PIC: Intel Corporation 5520/5500 Routing & Protocol Layer Register Port 1 (rev 13) 00:13.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub I/OxAPIC Interrupt Controller (rev 13) 00:14.0 PIC: Intel Corporation 5520/5500/X58 I/O Hub System Management Registers (rev 13) 00:14.1 PIC: Intel Corporation 5520/5500/X58 I/O Hub GPIO and Scratch Pad Registers (rev 13) 00:14.2 PIC: Intel Corporation 5520/5500/X58 I/O Hub Control Status and RAS Registers (rev 13) 00:15.0 PIC: Intel Corporation 5520/5500/X58 Trusted Execution Technology Registers (rev 13) 00:1a.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #4 00:1a.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #5 00:1a.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #6 00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2 00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller 00:1c.0 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 1 00:1c.1 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Port 2 00:1c.3 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 4 00:1c.4 PCI bridge: Intel Corporation 82801JI (ICH10 Family) PCI Express Root Port 5 00:1d.0 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #1 00:1d.1 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #2 00:1d.2 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB UHCI Controller #3 00:1d.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #1 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 90) 00:1f.0 ISA bridge: Intel Corporation 82801JIR (ICH10R) LPC Interface Controller 00:1f.2 IDE interface: Intel Corporation 82801JI (ICH10 Family) 4 port SATA IDE Controller #1 00:1f.3 SMBus: Intel Corporation 82801JI (ICH10 Family) SMBus Controller 00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2 01:00.0 IDE interface: Device 1b4b:91a3 (rev 11) 02:00.0 USB Controller: NEC Corporation Device 0194 (rev 03) 03:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 04:00.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 04:02.0 PCI bridge: nVidia Corporation PCI express bridge for Quadro Plex S4 / Tesla S870 / Tesla S1070 (rev a3) 05:00.0 3D controller: nVidia Corporation G98 [Quadro NVS 450] (rev a1) 06:00.0 VGA compatible controller: nVidia Corporation G98 [Quadro NVS 450] (rev a1) 08:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 08:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 02) 09:00.0 SATA controller: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03) 09:00.1 IDE interface: JMicron Technology Corp. JMB362/JMB363 Serial ATA Controller (rev 03) 0a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06) 0b:06.0 FireWire (IEEE 1394): Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link)

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  • Cannot send or receive files over Bluetooth

    - by denise
    I have a Lenovo ThinkPad laptop and running Windows Vista. Previously I could send and receive files between my phone and my laptop but now it won't work. Every time I select a file, right-click and select "Send to", and select "Bluetooth devices", the box appears but there's nothing there. Even if I turn my laptop's Bluetooth on, my phone can't find it and vice versa. What could be the problem and how can I fix this?

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  • CVE-2012-0882 Buffer Overflow vulnerability in yaSSL

    - by Umang_D
    CVE DescriptionCVSSv2 Base ScoreComponentProduct and Resolution CVE-2012-0882 Buffer overflow vulnerability 7.5 yaSSL MySQL 5.1 5.1.62 MySQL 5.5 5.5.22 This notification describes vulnerabilities fixed in third-party components that are included in Oracle's product distributions.Information about vulnerabilities affecting Oracle products can be found on Oracle Critical Patch Updates and Security Alerts page.

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  • How to connect via SSH to a linux mint system that is connected via OpenVPN

    - by Hilyin
    Is there a way to make SSH port not get sent through VPN so when my computer is connected to a VPN, it can still be remoted in via SSH from its non-VPN IP? I am using Mint Linux 13. Thank you for your help! This is the instructions I followed to setup the VPN: Open Terminal Type: sudo apt-get install network-manager-openvpn Press Y to continue. Type: sudo restart network-manager Download BTGuard certificate (CA) by typing: sudo wget -O /etc/openvpn/btguard.ca.crt http://btguard.com/btguard.ca.crt Click on the Network Manager icon, expand VPN Connections, and choose Configure VPN A Network Connections window will appear with the VPN tab open. Click Add. 8. A Choose A VPN Connection Type window will open. Select OpenVPN in the drop-down menu and click Create.. . In the Editing VPN connection window, enter the following: Connection name: BTGuard VPN Gateway: vpn.btguard.com Optional: Manually select your server location by using ca.vpn.btguard.com for Canada or eu.vpn.btguard.com for Germany. Type: select Password User name: username Password: password CA Certificate: browse and select this file: /etc/openvpn/btguard.ca.crt Click Advanced... near the bottom of the window. Under the General tab, check the box next to Use a TCP connection Click OK, then click Apply. Setup complete! How To Connect Click on the Network Manager icon in the panel bar. Click on VPN Connections Select BTGuard VPN The Network Manager icon will begin spinning. You may be prompted to enter a password. If so, this is your system account keychain password, NOT your BTGuard password. Once connected, the Network Manager icon will have a lock next to it indicating you are browsing securely with BTGuard.

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  • Xorg crashes ever since using Nvidia dual monitors

    - by legion
    Well ever since I have used dual monitors with the NVIDIA X Server Settings program my xorg process has been crashing after a while, and its generally a pretty long while of like 6 hours afterwards. Before NVIDIA changed my xorg.conf file I only had xorg crash like twice in 2 months, I can't figure out what is going on. I am running ubuntu 12.04 with the MATE desktop environment v 1.2.0 xorg.conf # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 295.33 (buildd@allspice) Fri Mar 30 15:25:24 UTC 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "LEN" HorizSync 51.8 - 55.8 VertRefresh 40.0 - 60.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "NVS 3100M" EndSection Section "Screen" # Removed Option "TwinView" "0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0" # Removed Option "TwinView" "1" # Removed Option "metamodes" "DFP-1: nvidia-auto-select +0+0, CRT: nvidia-auto-select +1920+0" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "TwinViewXineramaInfoOrder" "DFP-1" Option "TwinView" "0" Option "metamodes" "DFP-0: nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection

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  • Dreaded SQLs

    - by lavanyadeepak
    Dreaded SQLs We used to think that a SQL statement without a where clause is only dangerous right since running that on a server TSQL is just going to impact the entire table like waving the magic wand. For that reason we should cultivate the habit first to write the statement as select and then to modify the select portion as update. Within the T-SQL Window, I would normally prefer the following first: select * from employee where empid in (4,5) and then once I am satisfied with the results, I would go ahead with the following change: --select * delete from employee where empid in (4,5) Today I just discovered another coding horror. This would typically be applicable in a stored procedure and with respect to variable nomenclature. It is always desirable to have a suitable nomenclature for parameters distinct from the column names and internal variables. This would help quicker debugging of the stored procedures besides enhancing the readability. Else in a quick bout of enthusiasm a statement like   if (@CustomerID = @CustomerID) [when the latter is intended to denote the column name and there is a superflous @ prepended], zeroing in on the problem would be little tricky. Had there been a still powerful nomenclature rules then debugging would have been more straight-forward and simpler right?

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  • Is there any way to send a column value from outer query to inner sub query? [closed]

    - by chetan
    'Discussions' table schema title description desid replyto upvote downvote views browser used a1 none 1 1 12 - bad topic b2 a1 2 3 14 sql database a3 none 4 5 34 - crome b4 a3 3 4 12 The above table has two types of content types Main Topics and Comments. Unique content identifier 'desid' used to identify that its a main topic or a comment. 'desid' starts with 'a' for Main Topic and for comment 'desid' starts with 'b'. For comment 'replyto' is the 'desid' of main topic to which this comment is associated. I like to find out the list of the top main topics that are arranged on the basis of (upvote+downvote+visits+number of comments to it) addition. The following query gives top topics list in order of (upvote+downvote+visits) select * with highest number of upvote+downvote+views by query "select * from [DB_user1212].[dbo].[discussions] where desid like 'a%' order by (upvote+downvote+visited) desc For (comments+upvote+downvote+views ) I tried select * from [DB_user1212].[dbo].[discussions] where desid like 'a%' order by ((select count(*) from [DB_user1212].[dbo].[discussions] where replyto = desid )+upvote+downvote+visited) desc but it didn't work because its not possible to send desid from outer query to inner subquery. How to solve this? Please note that I want solution in query language only.

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  • SSIS Basics: Using the Merge Join Transformation

    SSIS is able to take sorted data from more than one OLE DB data source and merge them into one table which can then be sent to an OLE DB destination. This 'Merge Join' transformation works in a similar way to a SQL join by specifying a 'join key' relationship. this transformation can save a great deal of processing on the destination. Annette Allen, as usual, gives clear guidance on how to do it.

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  • Is this table replicated?

    - by fatherjack
    Another in the potentially quite sporadic series of I need to do ... but I cant find it on the internet. I have a table that I think might be involved in replication but I don't know which publication its in... We know the table name - 'MyTable' We have replication running on our server and its replicating our database, or part of it - 'MyDatabase'. We need to know if the table is replicated and if so which publication is going to need to be reviewed if we make changes to the table. How? USE MyDatabase GO /* Lots of info about our table but not much that's relevant to our current requirements*/ SELECT * FROM sysobjects WHERE NAME = 'MyTable' -- mmmm, getting there /* To quote BOL - "Contains one row for each merge article defined in the local database. This table is stored in the publication database.replication" interesting column is [pubid] */ SELECT * FROM dbo.sysmergearticles AS s WHERE NAME = 'MyTable' -- really close now /* the sysmergepublications table - Contains one row for each merge publication defined in the database. This table is stored in the publication and subscription databases. so this would be where we get the publication details */ SELECT * FROM dbo.sysmergepublications AS s WHERE s.pubid = '2876BBD8-3D4E-4ED8-88F3-581A659E8144' -- DONE IT. /* Combine the two tables above and we get the information we need */ SELECT s.[name] AS [Publication name] FROM dbo.sysmergepublications AS s INNER JOIN dbo.sysmergearticles AS s2 ON s.pubid = s2.pubid WHERE s2.NAME = 'MyTable' So I now know which

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  • Query for server DefaultData & DefaultLog folders

    - by jamiet
    Do you ever need to query for the DefaultData & DefaultLog folders for your SQL Server instance? Well, I just did and the following script enabled me to do that: DECLARE @HkeyLocal NVARCHAR(18),@MSSqlServerRegPath NVARCHAR(31),@InstanceRegPath SYSNAME; SELECT @HkeyLocal=N'HKEY_LOCAL_MACHINE' SELECT @MSSqlServerRegPath=N'SOFTWARE\Microsoft\MSSQLServer' SELECT @InstanceRegPath=@MSSqlServerRegPath + N'\MSSQLServer' DECLARE @SmoDefaultFile NVARCHAR(512) EXEC MASTER.dbo.xp_instance_regread @HkeyLocal, @InstanceRegPath, N'DefaultData', @SmoDefaultFile OUTPUT DECLARE @SmoDefaultLog NVARCHAR(512) EXEC MASTER.dbo.xp_instance_regread @HkeyLocal, @InstanceRegPath, N'DefaultLog', @SmoDefaultLog OUTPUT SELECT ISNULL(@SmoDefaultFile,N'') AS [DefaultFile],ISNULL(@SmoDefaultLog,N'') AS [DefaultLog]' I haven’t done any rigorous testing or anything like that, all I can say is…it worked for me (on SQL Server 2012). Use as you see fit. Doubtless this information exists in a multitude of other places but nevertheless I’m putting it here so I know where to find it in the future. Just for fun I thought I’d try this out against SQL Azure Windows Azure SQL Database. Unsurprisingly it didn’t work there: Msg 40515, Level 15, State 1, Line 16 Reference to database and/or server name in 'MASTER.dbo.xp_instance_regread' is not supported in this version of SQL Server. @Jamiet

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  • SSIS Basics: Using the Merge Join Transformation

    SSIS is able to take sorted data from more than one OLE DB data source and merge them into one table which can then be sent to an OLE DB destination. This 'Merge Join' transformation works in a similar way to a SQL join by specifying a 'join key' relationship. this transformation can save a great deal of processing on the destination. Annette Allen, as usual, gives clear guidance on how to do it.

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  • Multiuser's impact on Access Database

    - by SilentRage47
    Can someone explain to me how are effected the performances of an Access 2003 DB when it's used by a lot (30) of users on the same LAN? I'm working on a vb6 project with this access 2003 DB wich performs ok on my local PC, but it's terrible when used across 20-30 users. It's there something I can do to improve performance? How can I understand what's the cause of this degradation in performance?

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  • Software center won't open

    - by jji7skyline
    This is the error I get when I try to open it from terminal using 'software-center'. softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/share/software-center/softwarecenter/db/database.py', 96, 'open')' 2012-11-26 20:40:09,305 - root - WARNING - failed to add sca db Couldn't detect type of database I'm on Ubuntu 10.10. Unity won't work on my computer, so I'm stuck with this version.

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  • ???????/?????????NAS??????!Oracle Database?I/O???????NFS????????????SSD???????????

    - by user788995
    ????? ??:2012/01/23 ??:??????/?? ???Unified Storage????????????????????????????NAS??????????????????????????????????Oracle Database ????????Direct NFS??????NAS?????????????????SSD?????????????????????????????????DB???????????????? Oracle GRID Center ????????????????? IntroductionDirect NFS ????Direct NFS ???Direct NFS ??? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/120113_C-11_DirectNFS.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/120113_C-11_DirectNFS.mp4 http://www.oracle.com/technetwork/jp/ondemand/db-technique/c-11-directnfs-1484611-ja.pdf

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  • ??GoldenGate Replicat?HANDLECOLLISIONS??

    - by Liu Maclean(???)
    HANDLECOLLISIONS?????goldengate????????REPLICAT??,???????????????????,???????????????????????????,??????????????????????????reperror????????discard??,????????????????,??????(????error mapping????,???????discard??),??????????????;?????????????????,????????? ??HANDLECOLLISIONS?????: target??delete??(missing delete),??????????discardfile target??update??(missing update) ????????=» update???INSERT ,???????????? ?????????=» ??????????discardfile ????????????target??,???replicat???UPDATE?????????????? ??1 target??delete??(missing delete) : C:\Users\ML>sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Tue Sep 18 13:38:03 2012 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> conn sender/oracle Connected. SQL> create table handlec(t1 int primary key,t2 int); Table created. SQL> insert into handlec values(1,2); 1 row created. SQL> insert into handlec values(3,2); 1 row created. SQL> insert into handlec values(4,2); 1 row created. SQL> commit; Commit complete. SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 3 2 4 2 target : SQL> conn receiver/oracle Connected. SQL> create table handlec(t1 int primary key,t2 int); Table created. SQL> insert into handlec values(1,2); 1 row created. SQL> commit; SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 SQL> GGSCI (XIANGBLI-CN) 1> alter extract load2 , begin now EXTRACT altered. GGSCI (XIANGBLI-CN) 4> alter replicat rep2, begin now REPLICAT altered. GGSCI (XIANGBLI-CN) 13> add trandata sender.* Logging of supplemental redo data enabled for table SENDER.HANDLEC. Logging of supplemental redo log data is already enabled for table SENDER.TV. GGSCI (XIANGBLI-CN) 14> start mgr MGR is already running. GGSCI (XIANGBLI-CN) 15> start er * Sending START request to MANAGER ... EXTRACT LOAD2 starting Sending START request to MANAGER ... REPLICAT REP2 starting GGSCI (XIANGBLI-CN) 16> info all Program Status Group Lag at Chkpt Time Since Chkpt MANAGER RUNNING EXTRACT RUNNING LOAD2 00:00:00 00:00:01 REPLICAT RUNNING REP2 00:00:00 00:00:08 ***SOURCE?????TARGET????? SQL> delete handlec where t1=3; 1 row deleted. SQL> commit; Commit complete. ??SQL error 1403??,REPLICAT ABORT 2012-09-18 13:45:48 WARNING OGG-01004 Aborted grouped transaction on 'RECEIVER.HANDLEC', Database error 1403 (OCI Error ORA-01403: no data found, SQL ). 2012-09-18 13:45:48 WARNING OGG-01003 Repositioning to rba 1091 in seqno 3. 2012-09-18 13:45:48 WARNING OGG-01154 SQL error 1403 mapping SENDER.HANDLEC to RECEIVER.HANDLEC OCI Error ORA-01403: no data found, SQL . 2012-09-18 13:45:48 WARNING OGG-01003 Repositioning to rba 1091 in seqno 3. Source Context : SourceModule : [er.errors] SourceID : [er/errors.cpp] SourceFunction : [take_rep_err_action] SourceLine : [623] ThreadBacktrace : [8] elements : [D:\ogg\V34342-01\gglog.dll(??1CContextItem@@UEAA@XZ+0x3272) [0x000000018010BDD2]] : [D:\ogg\V34342-01\gglog.dll(?_MSG_ERR_MAP_TO_TANDEM_FAILED@@YAPEAVCMessage@@PEAVCSourceContext@@AEBV?$CQualDBObjName@$00@ggapp@gglib@ggs@@1W4MessageDisposition@CMessageFactory@@@Z+0x138) [0x00000001800AD508]] : [D:\ogg\V34342-01\replicat.exe(ERCALLBACK+0x6e1e) [0x0000000140099D5E]] : [D:\ogg\V34342-01\replicat.exe(shutdownMonitoring+0x4411) [0x00000001400C9BE1]] : [D:\ogg\V34342-01\replicat.exe(shutdownMonitoring+0x289cd) [0x00000001400EE19D]] : [D:\ogg\V34342-01\replicat.exe(CommonLexerNewSSD+0x9440) [0x00000001402AE980]] : [C:\windows\system32\kernel32.dll(BaseThreadInitThunk+0xd) [0x000000007733652D]] : [C:\windows\SYSTEM32\ntdll.dll(RtlUserThreadStart+0x21) [0x000000007746C521]] 2012-09-18 13:45:48 ERROR OGG-01296 Error mapping from SENDER.HANDLEC to RECEIVER.HANDLEC. *********************************************************************** * ** Run Time Statistics ** * *********************************************************************** Last record for the last committed transaction is the following: ___________________________________________________________________ Trail name : D:\ogg\V34342-01\ex\ze000003 Hdr-Ind : E (x45) Partition : . (x04) UndoFlag : . (x00) BeforeAfter: B (x42) RecLength : 9 (x0009) IO Time : 2012-09-18 13:45:38.000000 IOType : 3 (x03) OrigNode : 255 (xff) TransInd : . (x03) FormatType : R (x52) SyskeyLen : 0 (x00) Incomplete : . (x00) AuditRBA : 44 AuditPos : 3337232 Continued : N (x00) RecCount : 1 (x01) 2012-09-18 13:45:38.000000 Delete Len 9 RBA 1091 Name: SENDER.HANDLEC ___________________________________________________________________ Reading D:\ogg\V34342-01\ex\ze000003, current RBA 1091, 0 records Report at 2012-09-18 13:45:48 (activity since 2012-09-18 13:45:48) From Table SENDER.HANDLEC to RECEIVER.HANDLEC: # inserts: 0 # updates: 0 # deletes: 0 # discards: 1 Last log location read: FILE: D:\ogg\V34342-01\ex\ze000003 SEQNO: 3 RBA: 1091 TIMESTAMP: 2012-09-18 13:45:38.000000 EOF: NO READERR: 0 2012-09-18 13:45:48 ERROR OGG-01668 PROCESS ABENDING. 2012-09-18 13:45:48 INFO OGG-01237 Trace file D:\ogg\V34342-01\REP_TRACE1.TRC closed. 2012-09-18 13:45:48 INFO OGG-01237 Trace file D:\ogg\V34342-01\REP_TRACE2.TRC closed. CACHE OBJECT MANAGER statistics CACHE MANAGER VM USAGE vm current = 0 vm anon queues = 0 vm anon in use = 0 vm file = 0 vm used max = 0 ==> CACHE BALANCED CACHE CONFIGURATION cache size = 2G cache force paging = 3.41G buffer min = 64K buffer highwater = 8M pageout eligible size = 8M ================================================================================ ??skiptransaction???????? GGSCI (XIANGBLI-CN) 18> start rep2 skiptransaction Sending START request to MANAGER ... REPLICAT REP2 starting ??2 target??update??(missing update),???????? : ???????, ??source????????? SQL> update handlec set t1=5 where t1=4; 1 row updated. SQL> commit; Commit complete. ???target ????(miss update)??????? Database error 1403+OGG-01296 2012-09-18 13:49:30 WARNING OGG-01004 Aborted grouped transaction on 'RECEIVER.HANDLEC', Database error 1403 (OCI Error ORA-01403: no data found, SQL <UPDATE "RECEIVER"."HANDLEC" SET "T1" = :a1 WHERE "T1" = :b0>). 2012-09-18 13:49:30 WARNING OGG-01003 Repositioning to rba 1218 in seqno 3. 2012-09-18 13:49:30 WARNING OGG-01003 Repositioning to rba 1218 in seqno 3. Source Context : SourceModule : [er.errors] SourceID : [er/errors.cpp] SourceFunction : [take_rep_err_action] SourceLine : [623] ThreadBacktrace : [8] elements : [D:\ogg\V34342-01\gglog.dll(??1CContextItem@@UEAA@XZ+0x3272) [0x000000018010BDD2]] : [D:\ogg\V34342-01\gglog.dll(?_MSG_ERR_MAP_TO_TANDEM_FAILED@@YAPEAVCMessage@@PEAVCSourceContext@@AEBV?$CQualDBObjName@$00@ggapp@gglib@ggs@@1W4MessageDisposition@CMessageFactory@@@Z+0x138) [0x00000001800AD508]] : [D:\ogg\V34342-01\replicat.exe(ERCALLBACK+0x6e1e) [0x0000000140099D5E]] : [D:\ogg\V34342-01\replicat.exe(shutdownMonitoring+0x4411) [0x00000001400C9BE1]] : [D:\ogg\V34342-01\replicat.exe(shutdownMonitoring+0x289cd) [0x00000001400EE19D]] : [D:\ogg\V34342-01\replicat.exe(CommonLexerNewSSD+0x9440) [0x00000001402AE980]] : [C:\windows\system32\kernel32.dll(BaseThreadInitThunk+0xd) [0x000000007733652D]] : [C:\windows\SYSTEM32\ntdll.dll(RtlUserThreadStart+0x21) [0x000000007746C521]] 2012-09-18 13:49:30 ERROR OGG-01296 Error mapping from SENDER.HANDLEC to RECEIVER.HANDLEC. ??HANDLECOLLISIONS?,rep??????????discard?? GGSCI (XIANGBLI-CN) 23> view params rep2 replicat rep2 userid receiver , password oracle trace ./rep_trace1.trc trace2 ./rep_trace2.trc ASSUMETARGETDEFS HANDLECOLLISIONS map sender.*, target receiver.*; GGSCI (XIANGBLI-CN) 18> start rep2 SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 5 ????T1=5 T2 NULL?????? ,??update?????????????,??replicat??????????????update????????????????,?????T2 ?NULL ,????????????EXTRACT??PKUPDATE??? ????????FETCHOPTIONS FETCHPKUPDATECOLS ????????EXTRACT?????,???EXTRACT? ????extract???????????? ??????: SQL> conn receiver/oracle Connected. SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 10 100 5 20 200 SQL> delete handlec where t1=5; 1 row deleted. SQL> commit; Commit complete. SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 10 100 20 200 SQL> conn sender/oracle Connected. SQL> update handlec set t1=t1+1000 where t1=5; 1 row updated. SQL> commit; Commit complete. SQL> conn receiver/oracle Connected. SQL> SQL> SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 10 100 20 200 1005 2 ???????FETCHOPTIONS FETCHPKUPDATECOLS??????redo image???trail?,????primary key?????HANDLECOLLISIONS????target??????????? ??3 ????????????target??,???replicat???UPDATE??????????????: *** TARGET SQL> conn receiver/oracle Connected. SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 10 9 5 target????? t1=10 t2=9??? ,????source???(10,100)??? >>SOURCE SQL> insert into handlec values(10,100); 1 row created. SQL> commit; >>TARGET SQL> select * from handlec; T1 T2 ---------- ---------- 1 2 10 100 5 ???????source?insert??,???target???????????????HANDLECOLLISIONS?REPLICAT???UPDATE??????COLUMNS ?? HANDLECOLLISIONS?????goldengate????????REPLICAT??,???????????????????,???????????????????????????,??????????????????????????reperror????????discard??,????????????????,??????,??????????????;?????????????????,????????? ??HANDLECOLLISIONS?????: target??delete??(missing delete),??????????discardfile target??update??(missing update) ????????=» update???INSERT ,???????????? ?????????=» ??????????discardfile ????????????target??,???replicat???UPDATE?????????????? ?:???????????Insert/Delete??,????????????????Replicat?????abend,????? ???????????,??target??HANDLECOLLISIONS??update??,?????INSERT??????,???????????????,FETCHOPTIONS FETCHPKUPDATECOLS??????redo image???trail?,????primary key?????HANDLECOLLISIONS????target??????????? ??????send ??????HANDLECOLLISIONS GGSCI (XIANGBLI-CN) 29> send rep2, NOHANDLECOLLISIONS Sending NOHANDLECOLLISIONS request to REPLICAT REP2 ... REP2 NOHANDLECOLLISIONS set for 1 tables and 0 wildcard entries

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  • ??????????????????

    - by kazun
    2012 ? 8 ? 9 ???????????? ?? 13F ??????????????????????? DB ???????????????????????????????????????????????????????·????????????·??????????Exadata ?????????? Hybrid Columnar Compression(HCC)?????????????????????????????? (1)?????????????????IT????????????? ?????????????·??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????IT???????????????????ZFS Storage Appliances ????????100Petabytes ??(8 ? 9 ???)? ZFS Storage ?????????????????????????????????????????????????????????????????????? (2)????????????????????????????? ??????????? VTR ???????????????????? EOL(End of Life)????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ?????????7 ??????????? StorageTek SL150 ??????????????????????????450TB(????)?30~300 ????????????????????????? 10.1TB?????????????????????????????????????????????????????????????????????????????? ??:StorageTek SL150(????????????) ?????????????????????????????????????????????????????????? (3)Oracle????????????????????????? ??????(????????)????????????????????????????????????????????????Sun ZFS Storage Appliance?????????????????????????????Sun ZFS Storage Appliance ?Pillar Axiom ???????????????????????????? ?????????Oracle Database?????????????????????????????????????????? Database ????????? Hybrid Columnar Compression / Snapshot?Clone????????????????DB???????? I/O Quality of Services?????????DB??? ????? ???Optimized Solutions????Oracle??????(??????????????????)????????????????????????????????Exadata ?? InfiniBand ?????????????????1?????? ??????????????????????????????????????????????Oracle Database ? Exadata ?????????????????????????? Oracle ?????????????????????? Sun ZFS Storage 7120 Appliance ??????????????????????? ??:Sun ZFS Storage 7120 Appliance (4)?????????Oracle Database ??????????????? “Hybrid Columnar Compression (HCC) ” ????????????? HCC??????????????????????????????????????????????????? I/O ????????????????????????????????????????????Oracle Database ???? HCC ??????????????? ?????:?Oracle ????·???? 2009?12? Exadata Hybrid Columnar Compression? ?????????Sun ZFS Storage Appliance ?Pillar Axiom ?????????4??????HCC??????????????????? HCC ???????? HCC ???????? Exadata ? DataGuard ?????HCC ?????????????????????? Exadata ??????????????·??????????????? DB ??????? HCC ?????? ?????????????????????????HCC ?????????????????????????????????? ?????????? HCC ?????????????????????ZFS Storage Appliance ? Pillar Axiom ?????????????????????? 6 ?????????????????????????????????????? ¦???????? ???????????

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  • ???????/???Oracle Enterprise Manager 12c ?????????

    - by user788995
    ????? ??:2012/01/23 ??:??????/?? ?????????(Active Session History???)??????????(????????????????DB???????)?????????(????????RAT?? ?)???????????????????????? ?????????????????????????? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/4_DBMgmt_120106_1.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/4_DBMgmt_120106_1.mp4 http://www.oracle.com/technetwork/jp/ondemand/db-new/databasemgmt-120106-1484788-ja.pdf

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  • ???????/??????????????!???????????????????

    - by user788995
    ????? ??:2012/01/23 ??:??????/?? DBA???????????????????????????????????????????????Tips???????????????DBA?????????????????????????????? AWR ?????? 11g ??????????????????? Introduction??/?????????????????????????????????????????DB??????Summary ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/111220_D-15_DBTuning.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/111220_D-15_DBTuning.mp4 http://www.oracle.com/technetwork/jp/ondemand/db-new/d-15-dbtuning-1448436-ja.pdf

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  • ???????/???Oracle Exadata?????????????????????????

    - by user788995
    ????? ??:2012/01/23 ??:??????/?? Oracle Exadata ?????????????????????DWH?OLTP?DB????????????????????????????????????????? Oracle Exadata ??Oracle Exadata ???7???? ????????? ????????????????? http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/111207_D-3_Exadata.wmv http://otndnld.oracle.co.jp/ondemand/otn-seminar/movie/mp4/111207_D-3_Exadata.mp4 http://www.oracle.com/technetwork/jp/ondemand/db-new/d-3-exadata-1448374-ja.pdf

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  • ????????Oracle WebLogic Server - JDBC??????|WebLogic Channel|??????

    - by ???02
    WebLogic Server????????????????????????????JDBC???????????????? ?? JDBC????????????????????(????????????)??????????????????????????????????????? ??JDBC?????????????????????????????????????????????(????DB?????DB???ID????????)????????????????????????????????????????????????????????????????????????????????? ¦JDBC????????¦WebLogic Server?JDBC??????¦WebLogic Server?JDBC?????????¦WebLogic Server?JDBC?????????¦WebLogic Server????????????¦WebLogic Server?JDBC??????????Oracle JDBC Driver?????¦WebLogic Server?JDBC????????????/????¦Appendix:???????????JDBC??????????????????????????????????????http://www.oracle.com/technetwork/jp/ondemand/application-grid/wls11g-jdbcdatasource-201107-otn-sc-439531-ja.pdf

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