Search Results

Search found 28443 results on 1138 pages for 'partition table'.

Page 634/1138 | < Previous Page | 630 631 632 633 634 635 636 637 638 639 640 641  | Next Page >

• LINQ-to-SQL: How can I prevent 'objects you are adding to the designer use a different data connecti

  - by Timothy Khouri

  I am using Visual Studio 2010, and I have a LINQ-to-SQL DBML file that my colleagues and I are using for this project. We have a connection string in the web.config file that the DBML is using. However, when I drag a new table from my "Server Explorer" onto the DBML file... I get presented with a dialog that demands that do one of these two options: Allow visual studio to change the connection string to match the one in my solution explorer. Cancel the operation (meaning, I don't get my table). I don't really care too much about the debate as why the PMs/devs who made this tool didn't allow a third option - "Create the object anyway - don't worry, I'm a developer!" What I am thinking would be a good solution is if I can create a connection in the Server Explorer - WITHOUT A WIZARD. If I can just paste a connection string, that would be awesome! Because then the DBML designer won't freak out on me :O) If anyone knows the answer to this question, or how to do the above, please lemme know!

  Read the article

• Cannot use READPAST in snapshot isolation mode

  - by Marcus

  I have a process which is called from multiple threads which does the following: Start transaction Select unit of work from work table with by finding the next row where IsProcessed=0 with hints (UPDLOCK, HOLDLOCK, READPAST) Process the unit of work (C# and SQL stored procedures) Commit the transaction The idea of this is that a thread dips into the pool for the "next" piece of work, and processes it, and the locks are there to ensure that a single piece of work is not processed twice. (the order doesn't matter). All this has been working fine for months. Until today that is, when I happened to realise that despite enabling snapshot isolation and making it the default at the database level, the actual transaction creation code was manually setting an isolation level of "ReadCommitted". I duly changed that to "Snapshot", and of course immediately received the "You can only specify the READPAST lock in the READ COMMITTED or REPEATABLE READ" error message. Oops! The main reason for locking the row was to "mark the row" in such a way that the "mark" would be removed when the transaction that applied the mark was committed and the lock seemed to be the best way to do this, since this table isn't read otherwise except by these threads. If I were to use the IsProcessed flag as the lock, then presumably I would need to do the update first, and then select the row I just updated, but I would need to employ the NOLOCK flag to know whether any other thread had set the flag on a row. All sounds a bit messy. The easiest option would be to abandon the snapshot isolation mode altogether, but the design of step #3 requires it. Any bright ideas on the best way to resolve this problem? Thanks Marcus

  Read the article

• Concatenate row values T-SQL

  - by Robert

  I am trying to pull together some data for a report and need to concatenate the row values of one of the tables. Here is the basic table structure: Reviews ReviewID ReviewDate Reviewers ReviewerID ReviewID UserID Users UserID FName LName This is a M:M relationship. Each Review can have many Reviewers; each User can be associated with many Reviews. Basically, all I want to see is Reviews.ReviewID, Reviews.ReviewDate, and a concatenated string of the FName's of all the associated Users for that Review (comma delimited). Instead of: ReviewID---ReviewDate---User 1----------12/1/2009----Bob 1----------12/1/2009----Joe 1----------12/1/2009----Frank 2----------12/9/2009----Sue 2----------12/9/2009----Alice Display this: ReviewID---ReviewDate----Users 1----------12/1/2009-----Bob, Joe, Frank 2----------12/9/2009-----Sue, Alice I have found this article describing some ways to do this, but most of these seem to only deal with one table, not multiple; unfortunately, my SQL-fu is not strong enough to adapt these to my circumstances. I am particularly interested in the example on that site which utilizes FOR XML PATH() as that looks the cleanest and most straight forward. SELECT p1.CategoryId, ( SELECT ProductName + ', ' FROM Northwind.dbo.Products p2 WHERE p2.CategoryId = p1.CategoryId ORDER BY ProductName FOR XML PATH('') ) AS Products FROM Northwind.dbo.Products p1 GROUP BY CategoryId; Can anyone give me a hand with this? Any help would be greatly appreciated!

  Read the article

• consistency of Trigger Procedure (before row trigger) Postgresql

  - by elgcom

  Using Postgresql. I try to use TRIGGER procedure to make some consistency check on INSERT. The question is ...... whether "BEFORE INSERT FOR EACH ROW" can make sure each row to insert "checked" and "inserted" one after another? do I need extra lock on table to survive from concurrent insert? check for new row1 - insert row1 - check for new row2 - insert row2 -- -- -- unexpired product name is unique. CREATE TABLE product ( "name" VARCHAR(100) NOT NULL, "expired" BOOLEAN NOT NULL ); CREATE OR REPLACE FUNCTION check_consistency() RETURNS TRIGGER AS $$ BEGIN IF EXISTS (SELECT * FROM product WHERE name=NEW.name AND expired='false') THEN RAISE EXCEPTION 'duplicated!!!'; END IF; RETURN NEW; END; $$ LANGUAGE plpgsql; CREATE TRIGGER trigger_check_consistency BEFORE INSERT ON product FOR EACH ROW EXECUTE PROCEDURE check_consistency(); -- INSERT INTO product VALUES("prod1", true); INSERT INTO product VALUES("prod1", false); INSERT INTO product VALUES("prod1", false); // exception! this is OK name | expired ============== p1 | true p1 | true p1 | false This is not OK name | expired ============== p1 | true p1 | false p1 | false or maybe I should ask, how can I use Trigger to implement "Primary" or "Unique" constraint-like SQL.

  Read the article

• Select the latest record for each category linked available on an object

  - by Simpleton

  I have a tblMachineReports with the columns: Status(varchar),LogDate(datetime),Category(varchar), and MachineID(int). I want to retrieve the latest status update from each category for every machine, so in effect getting a snapshot of the latest statuses of all the machines unique to their MachineID. The table data would look like Category - Status - MachineID - LogDate cata - status1 - 001 - date1 cata - status2 - 002 - date2 catb - status3 - 001 - date2 catc - status2 - 002 - date4 cata - status3 - 001 - date5 catc - status1 - 001 - date6 catb - status2 - 001 - date7 cata - status2 - 002 - date8 catb - status2 - 002 - date9 catc - status2 - 001 - date10 Restated, I have multiple machines reporting on multiple statuses in this tblMachineReports. All the rows are created through inserts, so their will obviously be duplicate entries for machines as new statuses come in. None of the columns can be predicted, so I can't do any ='some hard coded string' comparisons in any part of the select statement. For the sample table I provided, the desired results would look like: Category - Status - MachineID - LogDate catc - status2 - 002 - date4 cata - status3 - 001 - date5 catb - status2 - 001 - date7 cata - status2 - 002 - date8 catb - status2 - 002 - date9 catc - status2 - 001 - date10 What would the select statement look like to achieve this, getting the latest status for each category on each machine, using MS SQL Server 2008? I have tried different combinations of subqueries combined with aggregate MAX(LogDates)'s, along with joins, group bys, distincts, and what-not, but have yet to find a working solution.

  Read the article

• gparted installed on OpenSuse shows all file system types as greyed out except for hfs

  - by cmdematos

  I have had this problem before and fixed it, but I don't recall how I did it and I did not record it (sadness :( ) I have all the requisite commands installed on OpenSuse to support gparted's efforts in creating any of the supported file systems. I recall that the problem was that gparted could not find the commands, in any event all the file systems are greyed out in the context menu except for the legacy hfs partition which only supports < 2gb. Even extfs2-extfs4 are greyed out. How do I fix this?

  Read the article

• 2 spss and mrInterview template questions

  - by Donnied

  How can I align the mrProgress bar to be the same size as the image at the top of the table? (I'd like it below the image.) How can I edit the .xml tables for the grid to show grid lines (preferably alternating colors)? (I do not have permissions to write actual scripts - I can only alter the .htm and .xml templates.) The current code: ` BODY {font-family:Verdana,Arial; font-size:10pt; color:000000} TABLE {font-family:Verdana,Arial; font-size:10pt; color:000000} .mrQuestionTable {BORDER-COLLAPSE: collapse} .mrEdit {font-family:Verdana,Arial; font-size:10pt; color:000000} .mrDropDown {font-family:Verdana,Arial; font-size:10pt; color:000000} .mrListBox {font-family:Verdana,Arial; font-size:10pt; color:000000} .mrErrorText {font-family:Verdana,Arial; font-size:10pt; color:red; font-weight:bold} .mrNext {font-family:Verdana,Arial; font-size:8pt; color:000000} .mrPrev {font-family:Verdana,Arial; font-size:8pt; color:000000} mrBannerText Questions here << Back Next >> mrBannerText `

  Read the article

• MVC/HTML - input submit won't trigger when HTML is in a text area

  - by cw

  Any idea why the below code doesn't trigger if I were to put some HTML inside the textarea? It works fine it I don't have HTML in it, but I'm not sure why it doesn't work with it. Here is the code. <form action="/Home/AddPost" method="post"> <table> <tr> <td>Post Title:</td> <td><input id="Title" type="text" name="title" /></td> </tr> <tr> <td>Post Description:</td> <td><textarea id="Description" rows="10" cols="60" name="description"></textarea></td> </tr> </table> <input type="submit" value="Save" /> </form>

  Read the article

• Join 3 tables in 1 LINQ-EF

  - by user100161

  I have to fill warehouse table cOrders with program using Ado.NET EF. I have SQL command but i don't know how to do this with LINQ. static void Main(string[] args) { var SPcontex = new PI_NorthwindSPEntities(); var contex = new NorthwindEntities(); dCustomers dimenzijaCustomers = new dCustomers(); dDatum dimenzijaDatum = new dDatum(); ... CREATE TABLE PoslovnaInteligencija.dbo.cOrders( cOrdersID int PRIMARY KEY IDENTITY(1,1), OrderID int NOT NULL, dCustomersID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dCustomers(dCustomersID), dEmployeesID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dEmployees(dEmployeesID), OrderDateID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dDatum(sifDatum), RequiredDateID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dDatum(sifDatum), ShippedDateID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dDatum(sifDatum), dShippersID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dShippers(dShippersID), dShipID int FOREIGN KEY REFERENCES PoslovnaInteligencija.dbo.dShip(dShipID), Freight money, WaitingDay int ) INSERT INTO PoslovnaInteligencija.dbo.cOrders (OrderID, dCustomersID, dEmployeesID, OrderDateID, RequiredDateID, dShippersID, dShipID, Freight, ShippedDateID, WaitingDay) SELECT OrderID, dc.dCustomersID, de.dEmployeesID, orderD.sifDatum, requiredD.sifDatum, dShippersID, ds.dShipID, Freight, ShippedDateID=CASE WHEN (ShippedDate IS NULL) THEN -1 ELSE shippedD.sifDatum END, WaitingDay=CASE WHEN (shippedD.sifDatum - orderD.sifDatum) IS NULL THEN -1 ELSE shippedD.sifDatum - orderD.sifDatum END FROM PoslovnaInteligencija.dbo.dShippers AS s, PoslovnaInteligencija.dbo.dCustomers AS dc, PoslovnaInteligencija.dbo.dEmployees AS de, PoslovnaInteligencija.dbo.dShip AS ds,PoslovnaInteligencija.dbo.dDatum AS orderD, PoslovnaInteligencija.dbo.dDatum AS requiredD, PoslovnaInteligencija.dbo.Orders AS o LEFT OUTER JOIN PoslovnaInteligencija.dbo.dDatum AS shippedD ON shippedD.datum=DATEADD(dd, 0, DATEDIFF(dd, 0, o.ShippedDate)) WHERE o.ShipVia=s.ShipperID AND dc.CustomerID=o.CustomerID AND de.EmployeeID=o.EmployeeID AND ds.ShipName=o.ShipName AND orderD.datum=DATEADD(dd, 0, DATEDIFF(dd, 0, o.OrderDate)) AND requiredD.datum=DATEADD(dd, 0, DATEDIFF(dd, 0, o.RequiredDate));

  Read the article

• Castle MonoRail ARDataBind trying to bind to non-existent row

  - by dave thieben

  I have a shopping cart application running on MonoRail and using Castle ActiveRecord/NHibernate, and there is a ShoppingCart table and a ShoppingCartItems table, which are mapped to entities. Here's the scenario: a user adds things to the shopping cart, say 5 items, and goes to view the cart. The cart shows all 5 items. the user duplicates the tab/window and gets another tab of the same cart (call it tab B). the user removes an item from the cart, so now there are 4 items in tab B, but in the original tab A, there are still 5 items. the user goes back to tab A, and updates something in the cart and clicks the "update" button which submits the changes. my MonoRail action tries to do an ARDataBind on ShoppingCartItems using the data from the view, which includes all 5 items. when it gets to the item that the user deleted from tab B, it throws a "No row with the given identifier exists" for that item. I can't figure out if there is a way to have it not bind that row, return null, return new instance, etc.? there is an AutoLoadBehavior parameter on the ARDataBind attribute, but that appears to only affect loading of child entities, and not the root entity. regardless of which option I choose, I get the exception before control even enters the action method (except AutoLoadBehavior.Never, but that doesn't really help me). instead, I have code that calls Request.ObtainParamsNode() to pull the form nodes and parse them manually into objects, and ignores the ones that no longer exist. is there a better way? thanks.

  Read the article

• SubSonic 3 ignoring columns in Select()

  - by jessegavin

  I have a table like so.. CREATE TABLE [dbo].[Locations_Hours]( [LocationID] [int] NOT NULL, [sun_open] [nvarchar](10) NULL, [sun_close] [nvarchar](10) NULL, [mon_open] [nvarchar](10) NULL, [mon_close] [nvarchar](10) NULL, [tue_open] [nvarchar](10) NULL, [tue_close] [nvarchar](10) NULL, [wed_open] [nvarchar](10) NULL, [wed_close] [nvarchar](10) NULL, [thu_open] [nvarchar](10) NULL, [thu_close] [nvarchar](10) NULL, [fri_open] [nvarchar](10) NULL, [fri_close] [nvarchar](10) NULL, [sat_open] [nvarchar](10) NULL, [sat_close] [nvarchar](10) NULL, [StoreNumber] [int] NULL, [LocationHourID] [int] IDENTITY(1,1) NOT NULL, CONSTRAINT [PK_Locations_Hours] PRIMARY KEY CLUSTERED ( [LocationHourID] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] And SubSonic 3 is generating a class with the following properties int LocationID string monopen string monclose string tueopen string tueclose string wedopen string wedclose string thuopen string thuclose string friopen string friclose string satopen string satclose string sunopen string sunclose int? StoreNumber int LocationHourID When I try to perform a query against this class like so.. var result = DB.LocationHours.Where(o => o.LocationID == _locationId); This is the resulting SQL query that SubSonic generates. SELECT [t0].[LocationHourID], [t0].[LocationID], [t0].[StoreNumber] FROM [dbo].[Locations_Hours] AS t0 WHERE ([t0].[LocationID] = 4019) I cannot figure out why SubSonic is omitting the nvarchar fields when it generates the SELECT statement. Anyone got any ideas?

  Read the article

• Glibc importance of error ...

  - by Oz123

  Hi Everyone, I am following LFS 6.7, and I reached the point where I compile glibc-2.12.1 . I mounted the LFS partition with the atime option: here is a confirm on that I think: /dev/sdb1 on /mnt /lfs type ext4 (rw) I get the following errors on making the test, and I have no clue if I should try to resolve them, or just ignore them and go on ... rpc/types.h sunrpc/rpc/svc_auth.h sunrpc/rpcsvc/bootparam.h sysvipc/sys/ipc.h \ sysvipc/sys/msg.h sysvipc/sys/sem.h sysvipc/sys/shm.h termios/termios.h \ termios/sys/termios.h termios/sys/ttychars.h time/time.h time/sys/time.h \ time/sys/timeb.h wcsmbs/wchar.h wctype/wctype.h > \ /sources/glibc-build/begin-end-check.out make[1]: Target `check' not remade because of errors. make[1]: Leaving directory `/sources/glibc-2.12.1' make: *** [check] Error 2 root:/sources/glibc-build# grep Error glibc-check-log make[2]: *** [/sources/glibc-build/math/test-float.out] Error 1 make[2]: *** [/sources/glibc-build/math/test-ifloat.out] Error 1 make[1]: *** [math/tests] Error 2 make[2]: [/sources/glibc-build/posix/annexc.out] Error 1 (ignored) make: *** [check] Error 2 thanks in advance, Oz

  Read the article

• Script to move specific user folders in Windows 7

  - by Evan M.

  Hi there. When I install Windows Vista/7, I move some of my user folders onto a new partition (i.e. Documents, Musics, Pictures, etc.). This does not include moving the whole User directory, just some of the data folders. %AppData% remains in it's default location (%SystemDrive%\Users). I'm getting tired of manually moving each of these folder's by changing their location under the properties dialog. Does anyone know of a way that I can script this to apply to the folders that I wish?

  Read the article

• UpdatePanel doesn't load correctly on second try

  - by Ed Woodcock

  Ok, I've got two UpdatePanels on a (relatively simple) CRUD-management page, and I'm having some issues with them. The first updatepanel fails the second time it's updated (infinite loading popout, page doesn't change, request comes back properly but apparently isn't used). The second updatepanel fails if the first updatepanel has updated first, or if a certain internal trigger is pressed twice. Interestingly, the first updatepanel can be called multiple times with no problems if the first has yet to be called. layout example: <updatepanel> <table> <trigger> </table> </updatepanel> <lightbox> <updatepanel> <multiple triggers> </updatepanel> </lightbox> The use of the second updatepanel is required for the lightbox to function correctly (so it can't just be one big one). The first updatepanel exhibits this behaviour regardless of whether the second is present on the page or not. Has anyone ever experienced similar problems/have any ideas?

  Read the article

• How to parse SOAP response from ruby client?

  - by Richard O'Neil

  Hi I am learning Ruby and I have written the following code to find out how to consume SOAP services: require 'soap/wsdlDriver' wsdl="http://www.abundanttech.com/webservices/deadoralive/deadoralive.wsdl" service=SOAP::WSDLDriverFactory.new(wsdl).create_rpc_driver weather=service.getTodaysBirthdays('1/26/2010') The response that I get back is: #<SOAP::Mapping::Object:0x80ac3714 {http://www.abundanttech.com/webservices/deadoralive} getTodaysBirthdaysResult=#<SOAP::Mapping::Object:0x80ac34a8 {http://www.w3.org/2001/XMLSchema}schema=#<SOAP::Mapping::Object:0x80ac3214 {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2f6c {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac2cc4 {http://www.w3.org/2001/XMLSchema}choice=#<SOAP::Mapping::Object:0x80ac2a1c {http://www.w3.org/2001/XMLSchema}element=#<SOAP::Mapping::Object:0x80ac2774 {http://www.w3.org/2001/XMLSchema}complexType=#<SOAP::Mapping::Object:0x80ac24cc {http://www.w3.org/2001/XMLSchema}sequence=#<SOAP::Mapping::Object:0x80ac2224 {http://www.w3.org/2001/XMLSchema}element=[#<SOAP::Mapping::Object:0x80ac1f7c>, #<SOAP::Mapping::Object:0x80ac13ec>, #<SOAP::Mapping::Object:0x80ac0a28>, #<SOAP::Mapping::Object:0x80ac0078>, #<SOAP::Mapping::Object:0x80abf6c8>, #<SOAP::Mapping::Object:0x80abed18>] >>>>>>> {urn:schemas-microsoft-com:xml-diffgram-v1}diffgram=#<SOAP::Mapping::Object:0x80abe6c4 {}NewDataSet=#<SOAP::Mapping::Object:0x80ac1220 {}Table=[#<SOAP::Mapping::Object:0x80ac75e4 {}FullName="Cully, Zara" {}BirthDate="01/26/1892" {}DeathDate="02/28/1979" {}Age="(87)" {}KnownFor="The Jeffersons" {}DeadOrAlive="Dead">, #<SOAP::Mapping::Object:0x80b778f4 {}FullName="Feiffer, Jules" {}BirthDate="01/26/1929" {}DeathDate=#<SOAP::Mapping::Object:0x80c7eaf4> {}Age="81" {}KnownFor="Cartoonists" {}DeadOrAlive="Alive">]>>>> I am having a great deal of difficulty figuring out how to parse and show the returned information in a nice table, or even just how to loop through the records and have access to each element (ie. FullName,Age,etc). I went through the whole "getTodaysBirthdaysResult.methods - Object.new.methods" and kept working down to try and work out how to access the elements, but then I get to the array and I got lost. Any help that can be offered would be appreciated.

  Read the article

• MySQL use certain columns, based on other columns

  - by Rabbott

  I have this query: SELECT COUNT(articles.id) AS count FROM articles, xml_documents, streams WHERE articles.xml_document_id = xml_documents.id AND xml_documents.stream_id = streams.id AND articles.published_at BETWEEN '2010-01-01' AND '2010-04-01' AND streams.brand_id = 7 Which just uses the default equajoin by specifying three tables in csv format in the FROM clause.. What I need to do is group this by a value found within articles.source (raw xml).. so it could turn into this: SELECT COUNT(articles.id) AS count, ExtractValue(articles.source, "/article/media_type") AS media_type FROM articles, xml_documents, streams WHERE articles.xml_document_id = xml_documents.id AND xml_documents.stream_id = streams.id AND articles.published_at BETWEEN '2010-01-01' AND '2010-04-01' AND streams.brand_id = 7 GROUP BY media_type which works fine, the problem is, I'm using rails, and using STI for the xml_documents table. The articles.source that is provided to the ExtractValue method will be of a couple different formats.. So what I need to be able to do is use "/article/media_type" IF xml_documents.type = 'source one' and use "/article/source" if xml_documents.type = 'source two' This is just because the two document types format their XML differently, but I don't want to have to run multiple queries to retrieve this information.. It would be nice if one could use a ternary operator, but i don't think this is possible.. EDIT At this Point I am looking at making a temp table, or simply using UNION to place multiple result sets together..

  Read the article

• ProgrammingError when aggregating over an annotated & grouped Django ORM query

  - by ento

  I'm trying to construct a query to get the "average, maximum, minimum number of items purchased by a single user". The data source is this simple sales record table: class SalesRecord(models.Model): id = models.IntegerField(primary_key=True) user_id = models.IntegerField() product_code = models.CharField() price = models.IntegerField() created_at = models.DateTimeField() A new record is inserted into this table for every item purchased by a user. Here's my attempt at building the query: q = SalesRecord.objects.all() q = q.values('user_id').annotate( # group by user and count the # of records count=Count('id'), # (= # of items) ).order_by() result = q.aggregate(Max('count'), Min('count'), Avg('count')) When I try to execute the code, a ProgrammingError is raised at the last line: (1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM (SELECT sales_records.user_id AS user_id, COUNT(sales_records.`' at line 1") Django's error screen shows that the SQL is SELECT FROM (SELECT `sales_records`.`player_id` AS `player_id`, COUNT(`sales_records`.`id`) AS `count` FROM `sales_records` WHERE (`sales_records`.`created_at` >= %s AND `sales_records`.`created_at` <= %s ) GROUP BY `sales_records`.`player_id` ORDER BY NULL) subquery It's not selecting anything! Can someone please show me the right way to do this? Hacking Django I've found that clearing the cache of selected fields in django.db.models.sql.BaseQuery.get_aggregation() seems to solve the problem. Though I'm not really sure this is a fix or a workaround. @@ -327,10 +327,13 @@ # Remove any aggregates marked for reduction from the subquery # and move them to the outer AggregateQuery. + self._aggregate_select_cache = None + self.aggregate_select_mask = None for alias, aggregate in self.aggregate_select.items(): if aggregate.is_summary: query.aggregate_select[alias] = aggregate - del obj.aggregate_select[alias] + if alias in obj.aggregate_select: + del obj.aggregate_select[alias] ... yields result: {'count__max': 267, 'count__avg': 26.2563, 'count__min': 1}

  Read the article

• Creating a multi-step process with mysql and php

  - by Paul Atkins

  Hi, I am working on a script which allows users to create a stepped process. The steps will consist of sending visitors to urls where they will fill out a form then be directed to the next step the user has created. Each user can create as many steps as they wish and the url for each step will be unique. I am not sure if I am doing this in the correct/most efficient way so I have a few questions about this. Before I begin here is a simple version of my table structure: step_id user_id step_url step_order 1 1 example.com?step=1 1 2 2 test.com?step=1 1 3 1 example.com?step=3 2 A visitor will be directed to step_url: example.com?step=1 by user_id: 1 On this page there will be a form which contains a hidden field with the value of the step_id like this: <input type="hidden" name="step_id" value="1"> Once the visitor has filled out this form it will be processed by my script at a url similar to: http://mysite.com/form-process.php Once the form has been submitted I then need to direct the visitor to the next step my user has created. I would currently do this using code similar to this: SELECT step_url FROM table WHERE step_order='$current_step_order'+1 Here are my questions about this: Is this the best most efficient way to accomplish this? Or is there a better way? As the step_id column is auto increment...how would I increment the order column by 1 each time a user inserts a new step? Thanks for taking the time to read this. Paul

  Read the article

• Broadcom NIC Teaming with Hyper-V R2

  - by Brian McCleary

  I have read a few contradictory articles regarding support or at least configuration with teaming of Broadcom NIC's and Hyper-V. I have a pair of Dell R805's with 4 Broadcom 5708 NIC's in them. I have teamed them up (one team for public connections and one for private connections) and I have installed Hyper-V. I am getting some intermittent connection issues though and I'm concerned that it might be due to the teaming. Basically I am wondering if anyone has successfully setup NIC teaming in the parent partition and used the teamed adapters through the Hyper-V switch. If so, what is the configuration/proper steps that you used to configure this. I have the server running Windows Server 2008 R2. Right now the server is in test mode, but my concern is that we won't see any issues until we move it into production and get some heavy traffic on the ports.

  Read the article

• Is it possible to make a non-nullable column nullable when used in a view? (sql server)

  - by Matt

  Hi, To start off I have two tables, PersonNames and PersonNameVariations. When a name is searched, it finds the closest name to one of the ones available in PersonNames and records it in the PersonNameVariations table if it's not already in there. I am using a stored proc to search the PersonNames for a passed in PersonNameVariationand return the information on both the PersonName found and the PersonNameVariation that was compared to it. Since I am using the Entity Framework, I needed return a complex type in the Import Function but for some reason it says my current framework doesn't support it. My last option was to use an Entity to return in my stored proc instead. The result that I needed back is the information on both the PersonName that was found and the PersonNameVariation that was recorded. Since I cannot return both entities, I created a view PersonSearchVariationInfo and added it into my Entity Framework in order to use it as the entity to return. The problem is that the search will not always return a Person Name match. It needs to be able to return only the PersonNameVariation data in some cases, meaning that all the fields in the PersonSearchVariationInfo pertaining to PersonName need to be nullable. How can I take my view and make some of the fields nullable? When I do it directly in the Entity Framework I get a mapping error: Error 4 Error 3031: Problem in mapping fragments starting at line 1202:Non-nullable column myproject_vw_PersonSearchVariationInfo.DateAdded in table myproject_vw_PersonSearchVariationInfo is mapped to a nullable entity property. C:\Users\Administrator\Documents\Visual Studio 2010\Projects\MyProject\MyProject.Domain\EntityFramework\MyProjectDBEntities.edmx 1203 15 MyProject.Domain Anyone have any ideas? Thanks, Matt

  Read the article

• Mysql out of disk space

  - by Paddy

  I have just finished developing a rails app which has a mysql db as a backend. The app is meant for high traffic and will store lots of information. I am planning to set up my own web server and host the site from it. If in future my disk space runs out i would want to expand by adding more space. But say if my mysql database is housed in my /disk0s1 and by adding a new drive i have more partitions (and hence more disk space), how then would i extend my database to store information on those partitions too, and at the same time prevent any information from being written on the original partition. Should i go for multiple databases? if so how? If i went for a hosting solution i wouldn't be bothering about this as i would just have to worry about making payments for the extra space :) I always wondered how space is added on-the-go by these webhosts. Is there any specific mysql configuration that i have to make?

  Read the article

• RJS error: TypeError: element is null

  - by salilgaikwad

  Hi All, I got RJS error: TypeError: element is null while using ajax. I used in view <%= periodically_call_remote(:url={:action='get_user_list', :id='1'}, :frequency = '5') % in controller render :update do |page| page.replace_html 'chat_area', :partial => 'chat_area', :object = [@chats, @user] if @js_update end in partial chat_area <% if [email protected]? && !show_div(@chats).blank?% <% show_div_id=show_div(@chats) % <% for chat in @chats % " style="display:<%= (chat.id == show_div_id)? 'block' : 'none' %;" <% form_remote_for(:chat, :url => {:controller=>'chats', :action='create', :id=1}, :html={:name = "form_#{chat.id}"}, :complete="resetContent('#{chat.id}');") do |f| % <%= f.hidden_field :sessionNo, :value=chat.sessionNo % <%= f.text_area :chatContent, :id= "chatContent_field_#{chat.id}", :cols="100", :rows="6", :onKeyPress="return submitenter(this,event);" % ')"/ <% end % </div> <% end % <% else % <% end % My div present in index.html.erb <table border="0" width="100%" cellspacing="0" cellpadding="0"> <tbody><tr> <td align="left" width="80%" valign="top" style=""> <%= text_area :chat, :chatContent, :id=> "chatContent_field", :cols=>"100", :rows=>"6" %> </td> <td align="left" width="20%" valign="bottom" style="padding-left:10px;padding-left:10px;x" > <div id="chat_area"> <%= render :partial => 'chat_area' %> </div> </td> </tr> </tbody> </table> Any help is appreciated. Regards, Salil Gaikwad

  Read the article

• How to implement YQL paging?

  - by Erik Vold

  I've read the YQL guide, and I keep reviewing http://developer.yahoo.com/yql/guide/yql-o...entables-paging and I have been looking at a few examples, but I'm still left pretty confused how YQL paging works. The problem that I am trying to tackle is creating a YQL open data table for the Mozilla labs Jetpack Gallery's jetpacks pages http://jetpackgallery.mozillalabs.com/jetpacks You flip through the pages of jetpacks with the ?page query variable and there is an order_by query variable. You can only see 10 results per page. Questions: List item Should I use or ? How do I specify the query parameter that indicates the page? in this case it is the 'page' query parameter. I am assuming I should use: <urls><url>http://jetpackgallery.mozillalabs.com/jetpacks</url></urls> is this correct? In the execute element, I will need to extract the details for each jetpack on the page? if so how would I organize that for the response.object? Can anyone provide some help? or perhaps point to a data table that I can look at as a reference? or better documentation on how paging works?

  Read the article

• How do I convert a Linux disk image into a sparse file?

  - by endolith

  I have a bunch of disk images, made with ddrescue, on an EXT partition, and I want to reduce their size without losing data, while still being mountable. How can I fill the empty space in the image's filesystem with zeros, and then convert the file into a sparse file so this empty space is not actually stored on disk? For example: > du -s --si --apparent-size Jimage.image 120G Jimage.image > du -s --si Jimage.image 121G Jimage.image This actually only has 50G of real data on it, though, so the second measurement should be much smaller. This supposedly will fill empty space with zeros: cat /dev/zero > zero.file rm zero.file But if sparse files are handled transparently, it might actually create a sparse file without writing anything to the virtual disk, ironically preventing me from turning the virtual disk image into a sparse file itself. :) Does it? Note: For some reason, sudo dd if=/dev/zero of=./zero.file works when cat does not on a mounted disk image.

  Read the article

• How to fix an SSD

  - by anonymous

  I have a Samsung 128 go SSD : MZ5PA128HMCD-01000. When I'm using it : there is always I/O errors. I tried to secure-erase it. But it is impossible to create a new NTFS (or any filesystem...) partition because I still get I/O errors. I tought maybe upgrading the firmware will solve the problem. Unfortunately, I'm not able to upgrade the firmware with Samsung SSD Magician Tool ... because Magician says there is no Samsung SSD on my computer... Is there a way to make Magician recognize this Samsung MZ5PA128HMCD-01000 SSD? Is another tool available to flash any firmware on a SSD? What should I do to fix this SSD?

  Read the article

< Previous Page | 630 631 632 633 634 635 636 637 638 639 640 641  | Next Page >