SQL Server Management Studio Error : Script failed for UserDefinedFunction

问题

I'm working on a local and a remote SQL Server instance with SSMS. I create a tiny function like:

create function ufnTestFunc ()
returns int
begin
    return 1
end

When I try to 'modify' it, or choose 'script function as -> alter', I get an error like:

Script failed for UserDefinedFunction 'dbo.ufnTestFunc'. (Microsoft.SqlServer.Smo)

- Syntax error in TextHeader of UserDefinedFunction 'ufnTestFunc'. (Microsoft.SqlServer.Smo)

This also happens on already existing functions. What may be the reason?

Notes:

All the functions work as intended
I can script the function as 'create' with no problem.
It's not related with comments, as there are no comments in the test function
Same happens with different DBs on the remote server

Local Server:
Microsoft SQL Server Express Edition (64-bit) - 10.50.2500.0

Remote Server:
Microsoft SQL Server Web Edition (64-bit) - 10.50.1600.1

SSMS:

Microsoft SQL Server Management Studio    10.50.2500.0
Microsoft Data Access Components (MDAC)   6.1.7601.17514
Microsoft MSXML                           3.0 6.0 
Microsoft .NET Framework                  2.0.50727.5448

回答1:

Run sp_helptext N'ufnTestFunc'

Is there anything in the "comment" section above the function that looks odd?

Embedded comments /* */ can sometimes cause that error.

Example:

/* 
    This function does something. 
    /* NOTE: not any useful, though */
    More stuff...
*/
alter function ufnTestFunc ()
returns int
begin
    return 1
end

回答2:

Ok like someone mentioned before, but with a little difference.

The problem is the AS keyword. Although the AS keyword before the function content is optional, SSMS can't handle functions without it. They work, but make trouble. It's a bug and not mentioned anywhere in the BOL.

I normally use the AS keyword, but this time the DB is from a previous coder, who didn't use it. In my test function I also didn't use it to make the function as small as possible.

回答3:

--Adding that I received this error and could neither script nor modify the sproc.

The problem was a block comment section inline, inside another block comment.

/*  
Example call:  
 Exec [usp_mySproc] @Param = '172777'  /* blah, blah */
 Exec [usp_mySproc] @Param = '172777', @Debug = 1   WITH RECOMPILE   
*/

Removed inner comment block and no problem.

来源：https://stackoverflow.com/questions/8731038/sql-server-management-studio-error-script-failed-for-userdefinedfunction

标签

sql

sql-server-2008-r2

ssms