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 call a function for all the rows in a table
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uv2944875
Starting Member

5 Posts

Posted - 11/14/2012 :  10:59:17  Show Profile  Reply with Quote
I have tables Teachers(tid int, teacherName varchar(20)) and Lectures(lid int, tid int, lectureName varchar(20)). This is a simplified version of my tables.

A scalar function f(tid int) returns the number of lectures for a teacher. I want to call this function for each teacher in Teachers.

Is it possible to implement this without a cursor (in which I place all the teachers and then call the function for each row)?

jimf
Flowing Fount of Yak Knowledge

USA
2869 Posts

Posted - 11/14/2012 :  11:00:39  Show Profile  Reply with Quote
You can use APPLY or just select

Select <columns>
,dbo.f(TID) as leactures
From Teachers


Jim
Everyday I learn something that somebody else already knew

Edited by - jimf on 11/14/2012 11:02:07
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uv2944875
Starting Member

5 Posts

Posted - 11/14/2012 :  11:12:07  Show Profile  Reply with Quote
Cool, thanks.
quote:
Originally posted by jimf

You can use APPLY or just select

Select <columns>
,dbo.f(TID) as leactures
From Teachers


Jim
Everyday I learn something that somebody else already knew

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jimf
Flowing Fount of Yak Knowledge

USA
2869 Posts

Posted - 11/14/2012 :  11:13:14  Show Profile  Reply with Quote
You're Welcome.

Jim

Everyday I learn something that somebody else already knew
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