December 2001
Intermediate to advanced
800 pages
17h 55m
English
Content preview from Guru's Guide to SQL Server™ Stored Procedures, XML, and HTML, The
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Parameters
Parameters can be passed to stored procedures by name or by position. An example of each method is presented in Listing 1-23:
Listing 1-23. You can pass procedure parameters by position or by name.
EXEC dbo.sp_who 'sa' EXEC dbo.sp_who @loginame='sa' |
Obviously, the advantage of referencing parameters by name is that you can specify them out of order.
You can force a parameter for which a default value has been defined to use that default by omitting it altogether or by passing it the DEFAULT keyword, as in Listing 1-24:
Listing 1-24. Passing DEFAULT for a parameter causes it to assume its default value.
EXEC dbo.sp_who @loginame=DEFAULT |
You can specify NULL to supply individual parameters with NULL values. This is sometimes handy ...
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