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• Welcome!

  - by mannamal

  Welcome to the Oracle Big Data Connectors blog, which will focus on posts related to integrating data on a Hadoop cluster with Oracle Database. In particular the blog will focus on best practices, usage notes, and performance tips for using Oracle Loader for Hadoop and Oracle Direct Connector for HDFS, which are part of Oracle Big Data Connectors. Oracle Big Data Connectors 1.0 also includes Oracle R Connector for Hadoop and Oracle Data Integrator Application Adapters for Hadoop. Oracle Loader for Hadoop: Oracle Loader for Hadoop loads data from Hadoop to Oracle Database. It runs as a MapReduce job on Hadoop to partition, sort, and convert the data into an Oracle-ready format, offloading to Hadoop the processing that is typically done using database CPUs. The data is thenloaded to the database by the Oracle Loader for Hadoop job (online load) or written out as Oracle Data Pump files for load and access later (offline load) with Oracle Direct Connector for HDFS. Oracle Direct Connector for HDFS: Oracle Direct Connector for HDFS is a connector for high speed access of data on HDFS from Oracle Database. With this connector Oracle SQL can be used to directly query data on HDFS. The data can be Oracle Data Pump files generated by Oracle Loader for Hadoop or delimited text files. The connector can also be used to load data into the database using SQL.

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• Problem identifying which page/page/function locks whole IIS server

  - by fnovak

  Hello, I have problem identifying which page/page/function locks whole IIS server. Out of the blue whole w3wp.exe jumps to CPU 90-98% usage. I have created 3 different application pools to see which w3wp.exe service locks the processor but I am unable to find out this information. I can only see that 2 of 3 services have 0-5% usage and one is jumping around 90-98% after some while. I think some process/function/redirect/sql is doing this but I would like to eliminate it. So far I am not even able to find the source of the problem. On my local development machine with VS2010 everything works like charm and I am unable to replicate problem. The server is windows 2k3 web server, sql server 2k5 and .net 4.0 Thank you for your help, links or any information on this issue. Fero

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• Your Transaction is in Jeopardy -- and You Can't Even Know It!

  - by Adam Machanic

  If you're reading this, please take one minute out of your day and vote for the following Connect item : https://connect.microsoft.com/SQLServer/feedback/details/444030/sys-dm-tran-active-transactions-transaction-state-not-updated-when-an-attention-event-occurs If you're really interested, take three minutes: run the steps to reproduce the issue, and then check the box that says that you were able to reproduce the issue. Why? Imagine that ten hours ago you started a big transaction. You're sitting...(read more)

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• DTLoggedExec 1.0.0.2 Released

  - by Davide Mauri

  These last days has been full of work and the next days, up until the end of july, will follow the same ultra-busy scheme. This makes the improvement of DTLoggedExec a little bit slower than what I desire, but nonetheless Friday I’ve been able to relase an updated version of the tool that fixes a bug and add a very convenient option to make even more straightforward the creationg of execution logs: [bugfix] Fixed a bug that prevented loading packages from SSIS Package Store [new] Added support for {filename} placeholder in both Data Flow Profiling and CSV Log Provider The added feature allow to generate DataFlow profile logs and CSV logs that has the same name of the package that generated them, es: DTLoggedExec.exec /FILE:”MyPackage.dtsx” /LPA:"FILE=C:\Log\{filename}_{date}_{time}.dtsCSVLog" Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• “Can You See Me Think?”

  - by andyleonard

  Introduction This post is the fifty-seventh part of a ramble-rant about the software business. The current posts in this series can be found on the series landing page . A Story… Once upon a time I was a manufacturing systems integrator. That’s a fancy description of a person who designs and builds machine control systems. I was asked to replace a control system and given a tight timeline to accomplish the work. My engineering spidey-senses were tingling, but there were bills to pay and the promise...(read more)

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• Question on methods in Object Oriented Programming

  - by mal

  I’m learning Java at the minute (first language), and as a project I’m looking at developing a simple puzzle game. My question relates to the methods within a class. I have my Block type class; it has its many attributes, set methods, get methods and just plain methods. There are quite a few. Then I have my main board class. At the moment it does most of the logic, positioning of sprites collision detection and then draws the sprites etc... As I am learning to program as much as I’m learning to program games I’m curious to know how much code is typically acceptable within a given method. Is there such thing as having too many methods? All my draw functionality happens in one method, should I break this into a few ‘sub’ methods? My thinking is if I find at a later stage that the for loop I’m using to cycle through the array of sprites searching for collisions in the spriteCollision() method is inefficient I code a new method and just replace the old method calls with the new one, leaving the old code intact. Is it bad practice to have a method that contains one if statement, and place the call for that method in the for loop? I’m very much in the early stages of coding/designing and I need all the help I can get! I find it a little intimidating when people are talking about throwing together a prototype in a day too! Can’t wait until I’m that good!

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• Coming back from (blog) retirement

  - by leo.pasta

  So, it has been more than 3 years without a single blog post. I wished I could have a decent excuse for it, but in the end, I guess it boils down to laziness and procrastination. :-) Even though I learned a lot in that period (and added a feel tricks to my bag), I couldn’t find the will to sit down and write. I hope all my readers (yes mom and dad, I’m talking to you) have not been disappointed. I will try really hard not to let routine take over. I don’t expect I will be the most active blogger in the community, but hopefully a couple of posts per month is a good target to aim.

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• Traits of a DBA - Part One – The Technical Side

  What does it take to become a database administrator, or what kinds of traits should I be looking for when I am hiring a DBA. Those traits can be summarized it two categories: Technical and Personal. In this article, Greg Larsen discusses the technical traits a DBA should have. Free eBook - Performance Tuning with DMVsThis free eBook provides you with the core techniques and scripts to monitor your query execution, index usage, session and transaction activity, disk IO, and more. Download the free eBook.

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• Your Transaction is in Jeopardy -- and You Can't Even Know It!

  - by Adam Machanic

  If you're reading this, please take one minute out of your day and vote for the following Connect item : https://connect.microsoft.com/SQLServer/feedback/details/444030/sys-dm-tran-active-transactions-transaction-state-not-updated-when-an-attention-event-occurs If you're really interested, take three minutes: run the steps to reproduce the issue, and then check the box that says that you were able to reproduce the issue. Why? Imagine that ten hours ago you started a big transaction. You're sitting...(read more)

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• Block ip for long time

  - by Tiziano Dan

  This question is about a iptables, I wanna to know how can I block these ip for 1hour and not only a little time.. because they make to many sql requests, I'm using it for block but it's not enough because there's anyway 100k ip who attack then too much requests for sql server. iptables -N SYN-LIMIT iptables -A SYN-LIMIT -m hashlimit --hashlimit 8/second --hashlimit-mode srcip --hashlimit-name SYN-LIMIT -j RETURN iptables -A SYN-LIMIT -j DROP iptables -I INPUT -p tcp --dport 80 --syn -j SYN-LIMIT iptables -I INPUT -p tcp --dport 80 -m connlimit --connlimit-above 6 -j REJECT --reject-with tcp-reset How can I make the same but block IP for long time ? (Not manually !)

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• Attending the next SQLBits – plan ahead

  - by simonsabin

  We are planning the next SQLBits and it is likely to be the same format as SQLBits V with a training day and a paid Friday. One of the very painful things I have to deal with is odd purchasing processes generally employed by large companies. Use of 3rd parties is the most painful of these, if you can avoid using them it makes our life much easier. We run SQLBits in our spare time and so spending hours dealing with 1 person’s booking is not good. Some people still haven’t paid for SQLBits V and that...(read more)

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• Hardware Virtualization no longer required for Windows 7 XP Mode

  - by Jonathan Kehayias

  One of my frustrations in upgrading to Windows 7 last year was that Virtual PC no longer worked since I didn’t have Hardware Virtualization on my CPU.  This really drove my transition entirely to VMware Workstation on my personal laptop.  I recently reinstalled my work laptop (with permission) on Windows 7 Enterprise and figured I’d give XP Mode a look since this machine has Hardware Virtualization enabled.  I was surprised to find that Hardware Virtualization was no longer required,...(read more)

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• The changing shape of the Business Intelligence marketplace: Applications vs. Platforms

  - by GavinPayneUK

  I recently read the latest Gartner Magic Quadrant for Business Intelligence ( link ) which put Microsoft as a leader.  However, what was more interesting for me than Microsoft’s success was how as an industry we see BI as a single marketplace, business requirement and vision, despite in my view it now being two separate areas: BI applications and BI platforms . As this article will discuss in more depth we now have two communities with differing requirements, our IT departments and our business...(read more)

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• Windows Not Sleeping All Night

  - by John Paul Cook

  Having a computer wake up when you don’t want it to wastes electricity and drains the battery on mobile devices. My desktop had been waking up at night, so I assumed it was some network traffic on my home network. I unchecked Allow this device to wake the computer on my network adapters . Figure 1. Network adapter Power Management tab. That didn’t solve the problem. I included the screen capture in Figure 1 because it could be part of the solution for someone else. To identify the root cause instead...(read more)

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• A bacon- (and module-) saving PowerShell incident

  - by AaronBertrand

  Earlier today I made a big goof. I opened a module in Notepad, intending to use it as the basis for a new module. I was in the process of using "File > Save As" when my phone rang just at the precise instant that, for some reason, made me click on "File > Save" by mistake. After hitting Ctrl+Z 30 times to try to get the old version of the module back, I remembered that Notepad has never had more than one level of Undo. Back when I was coding ASP by hand, I was very well aware of this, but I...(read more)

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• PASS Virtual Chapters Late April Presentations

  To finish up the month of April we’ve got sessions from AppDev and DBA and I’m even including one from PASS on ‘Intro to Speaking At PASS’.

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• Developing a Support Plan for Cloud Applications

  - by BuckWoody

  Last week I blogged about developing a High-Availability plan. The specifics of a given plan aren't as simple as "Step 1, then Step 2" because in a hybrid environment (which most of us have) the situation changes the requirements. There are those that look for simple "template" solutions, but unless you settle on a single vendor and a single way of doing things, that's not really viable. The same holds true for support. As I've mentioned before, I'm not fond of the term "cloud", and would rather use the tem "Distributed Computing". That being said, more people understand the former, so I'll just use that for now. What I mean by Distributed Computing is leveraging another system or setup to perform all or some of a computing function. If this definition holds true, then you're essentially creating a partnership with a vendor to run some of your IT - whether that be IaaS, PaaS or SaaS, or more often, a mix. In your on-premises systems, you're the first and sometimes only line of support. That changes when you bring in a Cloud vendor. For Windows Azure, we have plans for support that you can pay for if you like. http://www.windowsazure.com/en-us/support/plans/ You're not off the hook entirely, however. You still need to create a plan to support your users in their applications, especially for the parts you control. The last thing they want to hear is "That's vendor X's problem - you'll have to call them." I find that this is often the last thing the architects think about in a solution. It's fine to put off the support question prior to deployment, but I would hold off on calling it "production" until you have that plan in place. There are lots of examples, like this one: http://www.va-interactive.com/inbusiness/editorial/sales/ibt/customer.html some of which are technology-specific. Once again, this is an "it depends" kind of approach. While it would be nice if there was just something in a box we could buy, it just doesn't work that way in a hybrid system. You have to know your options and apply them appropriately.

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• Updated sp_indexinfo

  - by TiborKaraszi

  It was time to give sp_indexinfo some love. The procedure is meant to be the "ultimate" index information procedure, providing lots of information about all indexes in a database or all indexes for a certain table. Here is what I did in this update: Changed the second query that retrieves missing index information so it generates the index name (based on schema name, table name and column named - limited to 128 characters). Re-arranged and shortened column names to make output more compact and more...(read more)

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• Engines of Loss and Gain

  - by andyleonard

  Introduction This post is the fortieth part of a ramble-rant about the software business. The current posts in this series can be found on the series landing page . This post is about winning (no really). NASCAR I like watching NASCAR races. On the surface, a race looks like a bunch of folks driving fast on a circuitous course. But there’s much more to it than that. There’s engineering and strategy and frankly, a little luck. A NASCAR race is a lot like life when you look beneath the surface. Forty-three...(read more)

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• BI Beginner: Why to Use Excel 2013 Now

  - by John Paul Cook

  Most corporations and many individuals are slow to adopt new versions of Microsoft Office, particularly if the upgrade to the previous version was very recent. Excel 2013 is a special case and offers significant productivity enhancements. If you do business intelligence work or otherwise make your living with Excel, adding (notice I didn’t say upgrading to) Excel 2013 now makes a lot of sense. The Power View feature in Excel 2013 is a completely sufficient reason to add Excel 2013. It has to be enabled,...(read more)

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• Learn SSIS in London 12-14 Sep 2012!

  - by andyleonard

  My friends at TechniTrain , the students, and I had a blast during the March 2012 London delivery of From Zero To SSIS ! We have decided to do it again in September 2012 with my new Learning SSIS 2012 3-day course ! Please find a course outline here . It is difficult to list everything I cover in the course, but the outline hits the high spots. This material grew out of my experiences serving as a consultant on short-term engagements and as a manager (and enterprise ETL architect) for a team of forty...(read more)

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• Looking for a code Plugin !!

  - by GrumpyOldDBA

  SET ANSI_NULLS ON SET QUOTED_IDENTIFIER ON GO IF NOT EXISTS( SELECT 1 FROM INFORMATION_SCHEMA . TABLES WHERE TABLE_SCHEMA = 'dbo' AND TABLE_NAME = 'MSPaymentForExtraction' ) BEGIN CREATE TABLE [dbo] . [MSPaymentForExtraction] ( [MSPaymentID] [int] NOT NULL IDENTITY ( 1 , 1 ) NOT FOR REPLICATION ) ON [PRIMARY] END GO...(read more)

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• MySQL Workbench 5.2.39 GA Released

  - by user13164789

  The MySQL Developer Tools team is announcing the next maintenance release of its flagship product, MySQL Workbench, version 5.2.39. This version contains MySQL Utilities 1.0.5, a set of command line Python utilities for helping to perform and script various administration tasks for MySQL. A complete list of changes in this release of the Utilities can be found at:http://dev.mysql.com/doc/workbench/en/wb-utils-news-1-0-5.html MySQL Workbench 5.2 GA • Data Modeling • Query (replaces the old MySQL Query Browser) • Administration (replaces the old MySQL Administrator) Please get your copy from our Download site. Sources and binary packages are available for several platforms, including Windows, Mac OS X and Linux. http://dev.mysql.com/downloads/workbench/ Workbench Documentation can be found here. http://dev.mysql.com/doc/workbench/en/index.html Utilities Documentation can be found here.http://dev.mysql.com/doc/workbench/en/mysql-utilities.html In addition to the new Query/SQL Development and Administration modules, version 5.2 features improved stability and performance – especially in Windows, where OpenGL support has been enhanced and the UI was optimized to offer better responsiveness. This release also includes improvements to the scripting capabilities of the SQL Editor. You can read more about it in http://wb.mysql.com/workbench/doc/ For a detailed list of resolved issues, see the change log. http://dev.mysql.com/doc/workbench/en/wb-change-history.html If you need any additional info or help please get in touch with us. Post in our forums or leave comments on our blog pages. - The MySQL Workbench Team

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• Rules of Holes #6: Don't Draw Others Into the Hole with You

  - by ArnieRowland

  In the Fifth Rules of Holes, you were encouraged to seek help from others in order to extricate youself from the Hole. And it should have been clear in that Rule that you want to seek out those that can actually help you. Not everyone, or just anyone, will be able to help you get out of a Hole. Hopefully, you have a mentor, or will take the opportunity to enlist a mentor. Just be selective. Being selective will help you with Rules of Holes #5: Drawing more people into the Hole with you is not likely...(read more)

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• 24 Hours of PASS

  - by andyleonard

  I am honored to participate in 24 Hours of PASS starting at 8:00 AM 19 May 2010! My presentation is titled Database Development Patterns and is the second session - starting at 9:00 AM EDT 19 May 2010. It's free, but you have to register to attend - register today! :{> Andy Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!...(read more)

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