Search Results

Search found 36773 results on 1471 pages for 'sql statement syntax'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 346/1471 | < Previous Page | 342 343 344 345 346 347 348 349 350 351 352 353  | Next Page >

  • SQL programming

    - by Prince
    how can I determine the number of CoE students per school per city? the coe students belongs to a different table from the school table from the city table. I really need some help now. thanks

    Read the article

  • SQL programming

    - by Prince
    How can I update a table (MyTable) from a aprticular database (DB1) by equating the said MyTable from a different database (DB2) but it has the same tablename with the one I need to update. I tried putting alias to my program but it doesn't work. Need Help

    Read the article

  • Why better isolation level means better performance in MS SQL Server

    - by Oleg Zhylin
    When measuring performance on my query I came up with a dependency between isolation level and elapsed time that was surprising to me READUNCOMMITTED - 409024 READCOMMITTED - 368021 REPEATABLEREAD - 358019 SERIALIZABLE - 348019 Left column is table hint, and the right column is elapsed time in microseconds (sys.dm_exec_query_stats.total_elapsed_time). Why better isolation level gives better performance? This is a development machine and no concurrency whatsoever happens. I would expect READUNCOMMITTED to be the fasted due to less locking overhead.

    Read the article

  • Polymorphism in SQL database tables?

    - by Patrick Daryll Glandien
    I currently have multiple tables in my database which consist of the same 'basic fields' like: name character varying(100), description text, url character varying(255) But I have multiple specializations of that basic table, which is for example that tv_series has the fields season, episode, airing, while the movies table has release_date, budget etc. Now at first this is not a problem, but I want to create a second table, called linkgroups with a Foreign Key to these specialized tables. That means I would somehow have to normalize it within itself. One way of solving this I have heard of is to normalize it with a key-value-pair-table, but I do not like that idea since it is kind of a 'database-within-a-database' scheme, I do not have a way to require certain keys/fields nor require a special type, and it would be a huge pain to fetch and order the data later. So I am looking for a way now to 'share' a Primary Key between multiple tables or even better: a way to normalize it by having a general table and multiple specialized tables.

    Read the article

  • Linq to sql add/update in different methods with different datacontexts

    - by Kurresmack
    I have to methods, Add() and Update() which both create a datacontext and returns the object created/updated. In my unit test I call first Add(), do some stuff and then call Update(). The problem is that Update() fails with the exception: System.Data.Linq.DuplicateKeyException: Cannot add an entity with a key that is already in use.. I understand the issue but want to know what to do about it? I've read a bit about how to handle multiple datacontext objects and from what I've heard this way is OK. I understand that the entity is still attached to the datacontext in Add() but I need to find out how to solve this? Thanks in advance

    Read the article

  • SQL Joins on varchar fields timing out

    - by CL4NCY
    Hi, I have a join which deletes rows that match another table but the joining fields have to be a large varchar (250 chars). I know this isn't ideal but I can't think of a better way. Here's my query: DELETE P FROM dbo.FeedPhotos AS P INNER JOIN dbo.ListingPhotos AS P1 ON P.photo = P1.feedImage INNER JOIN dbo.Listings AS L ON P.accountID = L.accountID WHERE P.feedID = @feedID This query is constantly timing out even though there are less than 1000 rows in the ListingPhotos table. Any help would be appreciated.

    Read the article

  • How to create item templates for SQL files, for Visual Studio Database Projects

    - by jonathanconway
    It's possible to define your own custom templates for normal project types, such as templates for C# files, for a Class Library project. What about a 'Database Project' scenario? I would like to define a standard template for adding a stored procedure, which uses the company's conventions for all stored procedures, such as standard comments at the top. Which folder contains Visual Studio templates for Database projects?

    Read the article

  • Sql Shorthand For Dates

    - by vigilant
    Is there a way to write a query equivalent to select * from log_table where dt >= 'nov-27-2009' and dt < 'nov-28-2009'; but where you could specify only 1 date and say you want the results for that entire day until the next one. I'm just making this up, but something of the form: select * from log_table where dt = 'nov-27-2009':+1;

    Read the article

  • LINQ to SQL does not update when data has changed in database

    - by aximili
    I have this problem where after a field (say Field3 in table MyTable) is updated on the database, MyTable.Field3 (in C#) is still returning the old value. I suspect there is some caching...? How do I force it to: Read the value from the database? OR Update the value in the MyTable class? Or is there anything I miss? Thank you in advance.

    Read the article

  • Strange execution times in t-sql

    - by TonyP
    Hi All I have two stored procedures, the first one calls the second .. If I execute the second one alone it takes over 5 minutes to complete.. But when executed within the first one it takes little over 1 minute.. What is the reason ! Here is the first one ALTER procedure [dbo].[schRefreshPriceListItemGroups] as begin tran delete from PriceListItemGroups if @@error !=0 goto rolback Insert PriceListItemGroups(comno,t$cuno,t$cpls,t$cpgs,t$dsca,t$cpru) SELECT distinct c.comno,c.t$cuno, c.t$cpls,I.t$cpgs,g.t$dsca,g.t$cpru FROM TTCCOM010nnn C JOIN TTDSLS032nnn PL ON PL.comno = c.Comno and PL.t$cpls = c.t$cpls JOIN TTIITM001nnn I ON I.t$item = pl.t$item AND I.comno = pl.comNo JOIN TTCMCS024nnn G ON g.T$cprg = I.t$cpgs AND g.comno = I.Comno WHERE c.t$cpls !='' order by comno desc, t$cuno, t$cpgs if @@error !=0 goto rolback ----------------------------------------------------- Exec scrRefreshCustomersCatalogs ----------------------------------------------------- commit tran return rolback: Rollback tran And the second one Alter proc scrRefreshCustomersCatalogs as declare @baanIds table(id int identity(1,1),baanId varchar(12)) declare @baanId varchar(12),@i int, @n int Insert @baanIds(BaanId) select baanId from ftElBaanIds() SELECT @I=1,@n=max(id) from @baanIds select @i,@n Begin tran if @@error !=0 goto xRollBack WHILE @I <=@n Begin select @baanId=baanId from @baanIds where id=@i if @@error !=0 goto xRollBack Delete from customersCatalogs where comno+'-'+t$cuno=@baanId print Convert(varchar,@i)+' baanId='+@baanId Insert customersCatalogs exec customersCatalog @baanId if @@error !=0 goto xRollBack set @i=@i+1; end Commit Tran Update statistics customersCatalogs with fullscan Return xRollBack: Print '*****Rolling back*************' Rollback tran

    Read the article

  • SQL Join Problem

    - by Harley
    Table one contains ID|Name 1 Mary 2 John Table two contains ID|Color 1 Red 1 Blue 2 Green 2 Blue 2 Black I want to end up with is ID|Name|Red|Blue|Green|Black 1 Mary    Y      Y 2 John            Y        Y       Y Thanks for and help.

    Read the article

  • .NET and Closing SQL Server connections

    - by user307076
    I am having a hard time figuring out why the following constructor will not close connnections. When I view the active connections. Here is the code that I have. Public Sub New(ByVal UserID As Integer) Dim oConn As New SqlConnection(ConfigurationManager.ConnectionStrings("connStr").ToString()) Dim cmd As New SqlCommand("stored proc", oConn) Dim sdr As SqlDataReader cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.AddWithValue("@userID", UserID) oConn.Open() sdr = cmd.ExecuteReader() Try If Not sdr.HasRows Then sdr.Close() If Not oConn Is Nothing Then If oConn.State <> ConnectionState.Closed Then oConn.Close() End If End If cmd.Dispose() Exit Sub End If 'User has account in WATS, proceed to load account information While sdr.Read _firstname = Convert.ToString(sdr("First Name")) _lastname = Convert.ToString(sdr("Last Name")) End While Catch ex As Exception 'Throw New Exception("User Error: " + ex.Message) Finally sdr.Close() If Not oConn Is Nothing Then If oConn.State <> ConnectionState.Closed Then oConn.Close() End If End If cmd.Dispose() End Try End Sub

    Read the article

  • Data validate tools (ETL tools) for SQL server

    - by Stan
    I have some data in Excel and need to import into database. Is there any tool that can validate and maybe clean the data? Does Red Gate have such tool? The input will be Excel. Given table constraints, eg. CHECK, UNIQUE KEY, datetime format, NOT NULL. Desire output should be as least shows which lines are having problems, and then fix some trivial error automatically, like fill in default value for NULL columns, automatically correct datetime format. I know using Python can build such a script. But just wonder what's the popular way to do this. Thanks.

    Read the article

  • linq-to-sql combine child expressions

    - by VictorS
    I need to create and combine several expressions for child entity into one to use it on "Any" operator of a parent. Code now looks like this: Expresion<Child, bool> startDateExpression = t => t.start_date >= startDate; Expression<Child, bool> endDateExpression = t => t.end_date <= endDate; .... ParameterExpression param = startDateExpression.Parameters[0]; Expression<Func<T, bool>> Combined = Expression.Lambda<Func<Child, bool>>( Expression.AndAlso(startDateExpression.Body, startDateExpression.Body), param); //but now I am trying to use combined expression on parent //this line fails just to give an idea on what I am trying to do: //filter type is IQueryable<Parent>; var filter = filter.Where(p =>p.Children.Any(Combined)); How can I do that? Is there better(more elegant way way of doing it?

    Read the article

  • Linq to SQL ordered child collection

    - by Matt Connolly
    Is there a way to define a default order column from a child collection? In my case, I have a Form entity that has a collection of FormItem entities called FormItems. FormItem has a property called DisplayOrder (int). I want to make sure that any Form entities I return from a method have that collection properly ordered. Is there a way to do this before returning the result? For example, I tried this but the list is not actually sorted: var form = context.Forms.FirstOrDefault(x => x.IsDeleted == false && x.FormName == formName); if (form != null) { form.FormItems.OrderBy(x => x.DisplayOrder); // I can't even figure out a way to cast this next line so that it will compile // form.FormItems = form.FormItems.OrderBy(x => x.DisplayOrder); } return form; Is there a way to do this without using DataLoadOptions?

    Read the article

  • SQL housekeeping tasks on Herkoku

    - by Chris Beeson
    Hi, I'm not sure how to do this... I have a database which contains a messages and categories tables. The categories table has a field which has a count of the number of messages related to it. Sometimes however I need to deactivate (active = 0) a message, at the moment this doesn't then update the category table... I will implement this is in the end but for the time I would just like to run a script perhaps daily that goes through all the categories, counts up the messages and updates the field. What the best way of doing this? Thanks in advance Chris

    Read the article

  • Linq sql Attach, Update Check set to Never, but still Concurrency conflicts

    - by remdao
    In the dbml designer I've set Update Check to Never on all properties. But i still get an exception when doing Attach: "An attempt has been made to Attach or Add an entity that is not new, perhaps having been loaded from another DataContext. This is not supported." This approach seems to have worked for others on here, but there must be something I've missed. using(TheDataContext dc = new TheDataContext()) { test = dc.Members.FirstOrDefault(m => m.fltId == 1); } test.Name = "test2"; using(TheDataContext dc = new TheDataContext()) { dc.Members.Attach(test, true); dc.SubmitChanges(); }

    Read the article

  • How to refactor this database to allow sync. with smart clients?

    - by Anton Zvgny
    Howdy, I have inherited the following database: http://i46.tinypic.com/einvjr.png (EDIT: I cannot post images, so here goes the link) This currently runs 100% online thru an Asp.Net web app , but some employees will need to have offline access to this database to either get documents or to insert new documents for later synchronization when back to the office. What changes need to be made to this database scheme to support such scenario (sync smart clients with central web database)? Thanks! ps. I'm not an developer/dba, i'm just an mechanic engineer tasked with changing this app, so, take it easy on me :D ps1. We're using MSSQL Server for the online central database and MSSQL Compact for the smart client. ps2. the ImageGuid field of the images table is used to save the images to the file system. The web app takes the guid and create folders according to the first 3 initial letters to persist the image to the file system. ps3. The users of the smart client not always get server data first and then go modifying to sync later the changes. Most of the time they start working completely offline (with a blank local database) and later sync the data to the server. ps4. All the users of the smart client app have an account at the web app.

    Read the article

  • SQL 2008: Using separate tables for each datatype to return single row

    - by Thomas C
    Hi all I thought I'd be flexible this time around and let the users decide what contact information the wish to store in their database. In theory it would look as a single row containing, for instance; name, adress, zipcode, Category X, Listitems A. Example FieldType table defining the datatypes available to a user: FieldTypeID, FieldTypeName, TableName 1,"Integer","tblContactInt" 2,"String50","tblContactStr50" ... A user the define his fields in the FieldDefinition table: FieldDefinitionID, FieldTypeID, FieldDefinitionName 11,2,"Name" 12,2,"Adress" 13,1,"Age" Finally we store the actual contact data in separate tables depending on its datatype. Master table, only contains the ContactID tblContact: ContactID 21 22 tblContactStr50: ContactStr50ID,ContactID,FieldDefinitionID,ContactStr50Value 31,21,11,"Person A" 32,21,12,"Adress of person A" 33,22,11,"Person B" tblContactInt: ContactIntID,ContactID,FieldDefinitionID,ContactIntValue 41,22,13,27 Question: Is it possible to return the content of these tables in two rows like this: ContactID,Name,Adress,Age 21,"Person A","Adress of person A",NULL 22,"Person B",NULL,27 I have looked into using the COALESCE and Temp tables, wondering if this is at all possible. Even if it is: maybe I'm only adding complexity whilst sacrificing performance for benefit in datastorage and user definition option. What do you think? Best Regards /Thomas C

    Read the article

  • sql-server: how to insert to temporary table?

    - by RedsDevils
    I have one Temporary Table CREATE TABLE #TEMP (TEMP_ID INT IDENTITY(1,1)) And I would like to insert records to that table, How can I?I do as follow: INSERT INTO #TEMP DEFAULT VALUES But sometimes it doesn't work. What it might be?And I would like to know lifetime of temptable in MSSQL. Please Help me! Thanks all!

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 342 343 344 345 346 347 348 349 350 351 352 353  | Next Page >