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Permissions on objects accessed inside a trigger.

Posted on 2004-09-21
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Last Modified: 2010-08-05
I have a trigger in table A, the trigger updates tables C and D and it also have do a call to an the stored procedure which updates and do insertions on tables X and Y.

- Do I need to specify additional permisions for update/insert on Table C and D for those users who have access to table A ?
- Do I need to specify additional permisions for update/insert on Table X and Y for those users who have access to table A, because those tables are updated through a stored procedure ?

Thanks in advance,
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Question by:fischermx
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5 Comments
 
LVL 15

Expert Comment

by:jdlambert1
ID: 12116916
You don't need to specify additional permissions.
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Author Comment

by:fischermx
ID: 12117019

So, I don't need permissions for any, any, any thing ussed inside a trigger ?
Well, that's what I knew, too, but  why am I getting a INSERT permission denied on object 'MyTableAccessedInsideAStoredInsideATrigger', database 'MyDB', owner 'dbo'  ??

Which special situations would requiere a specific permissions ?

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LVL 14

Expert Comment

by:Jan Franek
ID: 12117109
AFAIK it depends on who is the owner of all these objects - if all the tables A, C, D, X and Y as well as the stored procedure have the same owner, there shouldn't be any problem with permissions. However, if some of these objects has different owner, you may need to specify some permissions.
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Author Comment

by:fischermx
ID: 12117197

I found the problem.
The table with the permissions problem was being accessed through dinamyc SQL using Execute(@MyStmt).

Reading the same table outside of it, just some lines before that call, didn't cause any problem, though.

Regards,
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Accepted Solution

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jdlambert1 earned 750 total points
ID: 12117221
Okay, I was completely wrong. I haven't had that problem because all my objects are owned by dbo.

Either the tables all have to have the same owner, or the tables down-stream from the first table (the one with the trigger on it) have to have appropriate permissions (insert/update/delete, depending on the trigger's or sp's actions) for the owner of the first table. Otherwise, it's a "broken ownership chain".
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