Raise Error In T-sql Function
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T-sql Throw
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Sql Server Throw Vs Raiserror
community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up How to report an error from a SQL Server user-defined function up vote 105 down vote incorrect syntax near throw favorite 19 I'm writing a user-defined function in SQL Server 2008. I know that functions cannot raise errors in the usual way - if you try to include the RAISERROR statement SQL returns: Msg 443, Level 16, State 14, Procedure ..., Line ... Invalid use of a side-effecting operator 'RAISERROR' within a function. But the fact is, the function takes some input, which may be invalid and, if it is, there sql server raiserror stop execution is no meaningful value the function can return. What do I do then? I could, of course, return NULL, but it would be difficult for any developer using the function to troubleshoot this. I could also cause a division by zero or something like that - this would generate an error message, but a misleading one. Is there any way I can have my own error message reported somehow? sql sql-server tsql sql-server-2008 user-defined-functions share|improve this question edited Sep 28 '09 at 4:57 marc_s 454k938711033 asked Sep 28 '09 at 1:33 EMP 23.5k33129192 add a comment| 9 Answers 9 active oldest votes up vote 152 down vote accepted You can use CAST to throw meaningful error: create function dbo.throwError() returns nvarchar(max) as begin return cast('Error happened here.' as int); end Then Sql Server will show some help information: Msg 245, Level 16, State 1, Line 1 Conversion failed when converting the varchar value 'Error happened here.' to data type int. share|improve this answer answered Jan 13 '11 at 15:33 Vladimir Korolev 1,814199 1 YES!!! It works! That's brilliant! –EMP Jan 13 '11 at 22:24 71 Great answer, but JEEZ wotta hack. >:( –JohnL4 Oct 12 '11 at 16:34 2 For an inline-table-valued-function where the RETURN is a simp
Pandey (manub22)December 30, 20136 Share 0 0 The new THROW keyword introduced in SQL server 2012 is an improvement
Incorrect Syntax Near Raiseerror
over the existing RAISERROR() statement.Yes, it’s single ‘E’ in RAISERROR. Both error handling in sql server user-defined functions RAISERROR & THROW can be used in T-SQL code/script to raise and throw error within a TRY-CATCH
Error Handling In Udf Sql Server
block. Check my previous post for TRY-CATCH block, [link]. >> With RAISERROR developers had to use different ERROR_xxxx() system functions to get the error details to pass through the http://stackoverflow.com/questions/1485034/how-to-report-an-error-from-a-sql-server-user-defined-function RAISERROR() statement, like:- ERROR_NUMBER()- ERROR_MESSAGE()- ERROR_SEVERITY()- ERROR_STATE() let’s see an example: -- Using RAISERROR()
DECLARE
@ERR_MSG AS NVARCHAR(4000)
,@ERR_SEV AS SMALLINT
,@ERR_STA AS SMALLINT
BEGIN TRY
SELECT 1/0 as DivideByZero
END TRY
BEGIN CATCH
SELECT @ERR_MSG = ERROR_MESSAGE(),
@ERR_SEV =ERROR_SEVERITY(),
@ERR_STA = ERROR_STATE()
SET @ERR_MSG= 'Error https://blogs.msdn.microsoft.com/manub22/2013/12/30/new-throw-statement-in-sql-server-2012-vs-raiserror/ occurred while retrieving the data from database: ' + @ERR_MSG
RAISERROR (@ERR_MSG, @ERR_SEV, @ERR_STA) WITH NOWAIT
END CATCH
GO Output:(0 row(s) affected)Msg 50000, Level 16, State 1, Line 15Error occurred while retrieving the data from database: Divide by zero error encountered. The RAISERROR() can take first argument as message_id also instead of the message. But if you want to pass the message_id then it has to be in sys.messages >>With THROW the benefit is: it is not mandatory to pass any parameter to raise an exception.Just using the THROW; statement will get the error details and raise it, as shown below: -- Using THROW - 1
BEGIN TRY
SELECT 1/0 as DivideByZero
END TRY
BEGIN CATCH
THROW;
END CATCH
GO Output:(0 row(s) affected)Msg 8134, Level 16, State 1, Line 2Divide by zero error encountered. As you see in the Output above, the error message thrown is the default one. But you can also add your customized message, we will see below. IMP NOTE:Default THROWstatement
Sql Server, Sql Server 2012Difference Between RAISERROR and THROW, Difference Between THROW and RAISERROR, Exception Handling, Exception Handling Enhancements in Sql Server 2012, New Feature in Sql Server 2012, RAISEERROR, http://sqlhints.com/2013/06/30/differences-between-raiserror-and-throw-in-sql-server/ RAISERROR, RAISERROR Vs THROW, Sql Server, Sql Server 2005, SQL SERVER 2012, THROW, THROW Vs RAISERROR, TRY CATCHBasavaraj Biradar Both RAISERROR and THROW statements are used to raise an error in Sql Server. The journey of RAISERROR started from Sql Server 7.0, where as the journey of THROW statement has just began with Sql Server 2012. obviously, Microsoft suggesting us to start using THROW statement instead sql server of RAISERROR. THROW statement seems to be simple and easy to use than RAISERROR. This is the third article in the series of articles on Exception Handling in Sql Server. Below is the complete list of articles in this series. Part I: Exception Handling Basics - MUST Read Article Part II: TRY…CATCH (Introduced in Sql Server 2005) Part III: RAISERROR Vs THROW (Throw: Introduced in incorrect syntax near Sql Server 2012) Part IV: Exception Handling Template Raiserror Vs Throw Below table lists-out 10 major difference between RAISERROR and THROW with examples: RAISERROR THROW Version of the Sql Server in which it is introduced? Introduced in SQL SERVER 7.0. And as per BOL, Microsoft is suggesting to start using THROW statement instead of RAISERROR in New Applications.
RAISERROR can't be used in the Sql Server 2014's Natively compiled Stored Procedures. Introduced in SQL SERVER 2012. THROW statement seems to be simple and easy to use than RAISERROR. THROW statement can be used in the Sql Server 2014's Natively Compiled Stored Procedure. SYNTAX RAISERROR ( { error_number | message | @local_variable } { ,severity ,state } [ ,argument [ ,...n ] ] ) [ WITH option [ ,...n ] ] THROW [ { error_number | @local_variable }, { message | @local_variable }, { state | @local_variable } ] [ ; ] Can re-throw the original exception that invoked the CATCH block? NO. It always generates new exception and results in the loss of the original exception details. Below example demonstrates this: BEGIN TRY DECLARE @result INT --Generate divide-by-zero error SET @result = 55/0 END TRY BEGIN CATCH --