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Execute stored procedure

Author

Topic

Pumkin
Starting Member

20 Posts

Posted - 2005-09-27 : 10:43:59

Hello guys..
I have a problem here...
I have a stored procedure with one parameter.
And I want to call it in another stored procedure.
The problem is that I don't cannot initialize the parameter unless I create a cursor that extracts the value for the parameter from a table.
Does anyone know a better way to do this. A more efficient one maybe.
Couldn't I just do something like this ..
EXEC proc_name 'select param from table'
Thank you

nathans
Aged Yak Warrior

938 Posts

Posted - 2005-09-27 : 10:53:46

You could use dynamic sql to do this. Review this article right here on SQLTeam: [url]http://www.sqlteam.com/item.asp?ItemID=4619[/url]

declare @param_name varchar(100),
	@cmd nvarchar(1000)

select @param_name = 'Nathan'
-- from yourTable

set @cmd = 'usp_test ' + @param_name + ''
Exec sp_executesql @cmd

Nathan Skerl

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2005-09-28 : 00:56:51

>>EXEC proc_name 'select param from table'

This approach is not recommended

Be aware on these

EXEC proc_name 'Delete from table'
EXEC proc_name 'Drop table table'

Madhivanan

Failing to plan is Planning to fail

jen
Master Smack Fu Yak Hacker

4110 Posts

Posted - 2005-09-28 : 03:22:47

dsql is not recommended.

you might want to review how you initialize that parameter, why do you need the cursor? is it not possible with set based approach?

quote:
Originally posted by Pumkin

The problem is that I don't cannot initialize the parameter unless I create a cursor that extracts the value for the parameter from a table.

--------------------
keeping it simple...

nathans
Aged Yak Warrior

938 Posts

Posted - 2005-09-28 : 10:19:08

I COMPLETELY agree that dynamic sql is a last resort and comes with many performance and security compromises.

We could just initialize the param as such:

declare @param int

select @param = param
from table

exec proc_name @param

Why wont this work Pumkin? Whats with the cursor?

Nathan Skerl

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