Error 1940 Sql Server
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not have a unique clustered index. SQL Server Error Messages - Msg 1940 Error Message Server: Msg 1940, Level 16, State 1, Line 1 Cannot create index on view '
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table, a view consists of a set of named columns and rows of data. However, a view does not exist as a stored set of data values in a database. The rows and columns of data come from one or more tables referenced in the query defining the view and are produced dynamically when the view is referenced. Creating indexes on views are allowed as long as the first index created on the view must be a unique clustered index. After the unique clustered index has been created, additional non-clustered indexes can be created. Creating a unique clustered index on a view improves query performance because the view is stored in the database in the same way a table with a clustered index is stored. If the first index being created on a view is not for a unique clustered index, this error message will be raised by SQL Server. To illustrate, here’s a script that will show how this error message can be encountered: CREATE TABLE
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the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags cannot create index on view ''. it does not have a unique clustered index. Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only http://www.sql-server-helper.com/error-messages/msg-1940.aspx takes a minute: Sign up Index does Not affect query performance in indexed views up vote 1 down vote favorite I want to examine query performance on indexed views. I create a view based on Product table in Northwind database with all columns.After create view I add a clustered index on the view (Because I couldn't create a non-clustered index http://stackoverflow.com/questions/15987954/index-does-not-affect-query-performance-in-indexed-views without int). Now before I add a non-clustered index I check this query execution plan and statistics : SELECT [ProductName] ,[QuantityPerUnit] ,[UnitPrice] ,[UnitsInStock] ,[UnitsOnOrder] ,[ReorderLevel] ,[Discontinued] FROM [Northwind].[dbo].[test_IndexedView] WHERE UnitPrice = 21.35 and then I create an index : CREATE NONCLUSTERED INDEX [idx_Unitp] ON [dbo].[test_IndexedView] ( [UnitPrice] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] GO and again I execute that query but nothing change.Not in exection plan not in statistics. where is the problem? How I can increase performance with indexed view? Edit 1) I create a view : CREATE VIEW [dbo].[indexView] WITH SCHEMABINDING AS SELECT ProductName, SupplierID, CategoryID, QuantityPerUnit, UnitPrice, UnitsInStock, UnitsOnOrder, Discontinued, ReorderLevel FROM dbo.Products GO and then when I want to create a 'nonclustered index` on it Like this: CREATE NONCLUSTERED INDEX [idx_Unitp] ON [dbo].[IndexView] ( [UnitPrice] ASC ) I get this error: Msg 1940, Level 16, State 1, Line 1 Cannot create index on view 'dbo.IndexView'. It does not have a unique clustered index. S
(Русский)ישראל (עברית)المملكة العربية السعودية (العربية)ไทย (ไทย)대한민국 (한국어)中华人民共和国 (中文)台灣 (中文)日本 (日本語) HomeLibraryLearnDownloadsTroubleshootingCommunityForums Ask a question Quick access Forums home Browse forums users FAQ Search related threads Remove https://social.msdn.microsoft.com/Forums/sqlserver/en-US/5866974a-9928-4fb4-8bd4-dd836aae7646/sqlwriters-error?forum=sqlkjmanageability From My Forums Answered by: SQLwriters error SQL Server > http://blog.sqlauthority.com/2009/12/30/sql-server-fix-error-msg-1949-level-16-cannot-create-index-on-view-the-function-yields-nondeterministic-results-use-a-deterministic-system-function-or-modify-the-user-defined-function-to-r/ SQL Server Manageability Question 0 Sign in to vote Hi, I am getting sql writers error these are given below. Sqllib error: OLEDB Error encountered calling ICommandText::Execute. hr = 0x80040e14. SQLSTATE: 42000, Native Error: 3013 Error state: sql server 1, Severity: 16 Source: Microsoft SQL Native Client Error message: BACKUP DATABASE is terminating abnormally. SQLSTATE: 42000, Native Error: 3271 Error state: 1, Severity: 16 Source: Microsoft SQL Native Client Error message: A nonrecoverable I/O error occurred on file "{9F04C4BF-FA89-400B-B457-2C82D873C0D0}1:" 995(The I/O operation has been aborted sql server error because of either a thread exit or an application request.). =========================================================================================== And also getting error for SQLVDI SQLVDI: Loc=TriggerAbort. Desc=invoked. ErrorCode=(0). Process=1940. Thread=5584. Server. Instance=SUNBELT. VD=Global\{9F04C4BF-FA89-400B-B457-2C82D873C0D0}3_SQLVDIMemoryName_0. Please help... Asheesh pandey Monday, April 09, 2012 1:46 PM Reply | Quote Answers 0 Sign in to vote Please check this blog:- http://sql-blogs.com/2012/01/17/troubleshooting-vss-writer-issues/ Kind regards| Harsh Chawla | Personal Blog:- SQL-blogs |Team Blog:- Team Blog Marked as answer by Maggie LuoModerator Tuesday, April 24, 2012 8:32 AM Tuesday, April 10, 2012 6:29 AM Reply | Quote All replies 0 Sign in to vote Hi, Can you check the status of SQL Server VSS Writer service? JanosThere are 10 type of people. Those who understand binary and those who do not. My Blog Monday, April 09, 2012 6:42 PM Reply | Quote 0 Sign in to vote Please check this blog:- http://sql-blogs.com/2012/01/17/troubleshootin
SERVER - Fix Error 1949, Level 16: Cannot create index on view. The function yields nondeterministic results December 30, 2009Pinal DaveSQL Tips and Tricks8 commentsRecently, during my training session in Hyderabad, one of the attendees wanted to know the reason of the following error that he encountered every time he tried to create a view. He informed me that he is also creating the index using WITH SCHEMABINDING option. Let us see we can fix error 1949.Msg 1949, Level 16, State 1, Line 1 Cannot create index on view . The function yields nondeterministic results. Use a deterministic system function, or modify the user-defined function to return deterministic results.I could easily find out the reason for this error. He was using non-deterministic function in his view, which was leading to this error. Once the non-deterministic function was removed, the error disappeared. The definition of the non-deterministic function is that it may return different results each time it is called with a specific set of input values. MSDN lists many functions as non-deterministic:@@ERRORFORMATMESSAGENEWID@@IDENTITYGETANSINULLPATINDEX@@ROWCOUNTGETDATEPERMISSIONS@@TRANCOUNTGetUTCDateSESSION_USERAPP_NAMEHOST_IDSTATS_DATECHARINDEXHOST_NAMESYSTEM_USERCURRENT_TIMESTAMPIDENT_INCRTEXTPTRCURRENT_USERIDENT_SEEDTEXTVALIDDATENAMEIDENTITYUSER_NAMENow if you are using any of the above functions in your view, it will not allow you to create indexes on the view. You will have to remove the function before creating the view. Following is a quick example for the same: USE TempDB GO -- Create view with non deterministic function GETDATE CREATE VIEW TempView WITH SCHEMABINDING AS SELECT GETDATE() AS CurrentTime, 1 FirstCol GO -- Check the data from the view SELECT * FROM TempView GO -- Attempt to create the view CREATE UNIQUE CLUSTERED INDEX [IX_ClusteredIndex_TempView] ON [dbo].[TempView] ( FirstCol ASC ) ON [PRIMARY] GO /* Above query will throw following error Msg 1949, Level 16, State 1, Line 1 Cannot create index on view 'tempdb.dbo.TempView'. The function 'getdate' yields nondeterministic results. Use a deterministic system function, or modify the user-defined function to return deterministic results. */ -- Alter View and remove non deterministic function GETDATE ALTER VIEW TempView WITH SCHEMABINDING AS SELECT 1 FirstCol GO -- Creating following view will work successfully CREATE UNIQUE CLUSTERED INDEX [IX_ClusteredIndex_TempView] ON [dbo].[TempView] ( FirstCol ASC ) ON [PRIMARY] GO This i