December 2002
Intermediate to advanced
1560 pages
40h 44m
English
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Returning Procedure Status
Most programming languages have the ability to pass a status code to the caller of a function or a subroutine. A value of 0 generally indicates that the execution was successful. SQL Server is no exception.
SQL Server will automatically generate an integer status value of 0 after successful completion. If SQL Server detects an error, a status value between -1 and -99 is returned. You can use the RETURN statement to explicitly pass a status value less than -99 or greater than 0. The calling batch or procedure can set up a local variable to retrieve and check the return status.
In Listing 28.15, you want to return the year-to-date sales for a given title as a resultset. If the title does not exist, you do not want to ...
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