Check Constraint Custom Error Message
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Error Evaluating Check Constraint
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8 down vote favorite I'd like to see the ability to attach custom error messages to CONSTRAINT objects, specifically CHECK constrints. Either directly or via a custom error number in sysmessages. I've seen developers have to create triggers. I think that's not a good reason to implementing it. I'm using SQL SERVER 2008. sql-server database sql-server-2008 check-constraints share|improve this question edited Nov 30 '11 at 5:42 Adam Wenger 11.8k53257
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asked Nov 30 '11 at 5:40 oscar.fimbres 579718 I'm afraid this is not possible. The only way you could do this would be to have a custom error message and handle the constraint via a trigger, in which you could then raise an error using your custom message –marc_s Nov 30 '11 at 6:10 add a comment| 3 Answers 3 active oldest votes up vote 7 down vote You could name your constraint with a user message. For Example: ADD CONSTRAINT [Foo cannot be greater than Bar. Please be sure to check your foos and bars next time.] CHECK (foo <= Bar) share|improve this answer edited Oct 16 '12 at 18:01 Martin Smith 260k33414484 answered Oct 16 '12 at 17:56 Luke 7112 add a comment| up vote 2 down vote You can't directly A CHECK constraint fails with a standard error message. You could use a TRY/CATCH block to parse the error and throw your own (RAISERROR) or use a trigger. I'd check first so it doesn't fire, either is SQL or in client code. And of course you leave the constraint there to protect data integrity So if you have a constraint ALTER TABLE MyTable WITH CHECK ADD CONSTRAINT CK_MyTable_foobar CHECK (@foo <=
decided to focus its efforts on other items. A more detailed explanation for the resolution of this particular item may have been provided in the comments section. 10 0 Sign into vote ID 406783 Comments 4 Status custom error message c# Closed Workarounds 1 Type Suggestion Repros 1 Opened 1/28/2009 6:32:30 AM Access Restriction Public Description I'd
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like to see the ability to attach custom error messages to CONSTRAINT objects, specifically CHECK constrints. Either directly or via a custom error custom error message salesforce number in sysmessages. I know there are several ways of handling this, but I feel that capturing errorn number 547 in my code does not provide enough context. What if there is more than one check constraint? If users/developers/DBA's are accessing http://stackoverflow.com/questions/8321619/create-custom-error-message-in-check-constraints-in-sql-server-2008 the database directly via SQL script then I don't have the opportunity to handle this situation without implementing TRIGGERS which I definately don't want. DETAILS ATTACH A FILE EDIT THIS ITEM Assign To Item can only be reassigned when it is active. Comments (4) | Workarounds (1) | Attachments (0) Sign in to post a comment. Please enter a comment. Submit Posted by Microsoft on 3/17/2011 at 9:10 AM Hi Adam,Thank you for submitting this suggestion, but we're trying https://connect.microsoft.com/SQLServer/feedback/details/406783/custom-error-for-check-constraints to clean house and remove items we feel we will likely not address given their priority relative to other items in our queue. We believe it is unlikely that we will address this suggestion, and so we are closing it as "won't fix".This cleaning will help us focus on the high-priority items that we feel need to get done, and we hope that it help provide better clarity to you about the issues we will (and won't) address.While we've tried to look at each of these items individually, this was a large effort, and so we may have erred in assessing this particular suggestion's priority. If you feel that this is worth reconsidering, please feel free to re-file it and we will be happy to take another look.Cheers,-Isaac Posted by Adam Rink on 2/4/2011 at 11:56 AM Same with Foreign Keys too. Would be cool if you could do something like this:ALTER TABLE dbo.TabADD CONSTRAINT CK_Tab_AcctType CHECK (AcctType IN('A','C','E','H','I','L','M','P')) CHECKMESSAGE = 'You must add a valid account type'GO Posted by Bart.NET on 7/30/2010 at 6:09 AM I support this requestI'm using clr UDT's to have custom error messages, but updating (re-deploy) clr UDT's is a real pain. Posted by Umachandar [MSFT] on 2/9/2009 at 10:52 AM Hi Adam, Thanks for your feedback. We will consider your request for a future version of SQL Server.--Umachandar, SQL Programmability Team Sign in to post a workar
(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 From My Forums Answered by: check constraint with custom error message SQL Server > Transact-SQL Question 0 Sign in to vote i need the t-sql statement https://social.msdn.microsoft.com/Forums/sqlserver/en-US/9a60c2f4-19d7-4d51-851d-e54b221090eb/check-constraint-with-custom-error-message?forum=transactsql for a check constraint that has a custom error message that shows the proper fromat for column entry.... i know its confusing... example... if im using the authors table in the pubs database and the numbers in the au_id column reads xxx-xxxxxx where x represents numbers... what must i do so that the error message reads the proper format... ie. use proper format XXX-XXXXXX, is what i might want the custom error error message to read. thanks in advance Friday, March 14, 2008 4:34 AM Reply | Quote Answers 0 Sign in to vote I made my recommendation from the assumption that it should return the error requested for all inserts, and didn't assume that an application would be the sole control over this. Aarons post definately is a much better way for performance, but it doesn't guarantee that someone putting bad data custom error message in from SSMS would get the error. I probably thought to far into this one due to the error message having to be returned. As has been shown over and over in posts, triggers are with out a doubt one of the most misused things in SQL Server, case in point, my recommendation here. Friday, March 14, 2008 10:39 PM Reply | Quote Moderator All replies 0 Sign in to vote I don' think you can do this in a check constraint, but you can do it in a FOR INSERT Trigger. Code Snippet CREATE TABLE TESTTABLE1
( PKID int IDENTITY PRIMARY KEY, au_id varchar(15) ) go CREATE TRIGGER trg_datavalidate ON TESTTABLE1 FOR INSERT AS DECLARE @Loop int DECLARE @au_id varchar(15) SELECT @Loop = min (PKID) FROM inserted while @loop is not null begin SELECT @au_id = au_id from inserted where PKID = @loop IF @au_id NOT LIKE '[0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]' BEGIN RAISERROR ('au_id must be in the format of xxx-xxxxxx where x is a number.', -- Message text. 16, -- Severity. 1 -- State. ); ROLLBACK TRANSACTION END SELECT @Loop = min (PKID) FROM inserted WHERE @Loop < PKID END GO INSERT INTO TESTTABLE1 (au_id) VALUES ('111-111111') GO INSERT INTO TESTTABLE1 (au_id) VALUES ('111-11111a') The second i