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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Adhoc queries and limiting the amount of records queried...
This is what I do in my shop since they allow(not me) ad hoc queries...
I modified the user id that run ad hoc queries to default to a TEMP
tablespace which is rather small. :)
They failed most of the time and I receive no complains. :)
Bing Wong
Open Systems Database Administrator
x25721
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-----Original Message-----
Sent: Tuesday, October 29, 2002 11:59 AM
To: Multiple recipients of list ORACLE-L
many shops prohibit ad-hoc queries in busy OLTP databases and many of those have datawarehouses where ad-hoc is allowed. IMHO that's the only way prevent ad-hoc queries from causing problems in your OLTP environment.
SQL> select * form users where clue > 0;
no rows selected
-----Original Message-----
Sent: Tuesday, October 29, 2002 1:29 PM
To: Multiple recipients of list ORACLE-L
I just wanted to ping the list to see what other people have done to control or constrain adhoc query users???
We have a group that is struggling with the adhoc query piece that's in production. Some of the users end up firing off insane queries. The group is trying to find a way to limit the amount of records queried for, so that a wild query doesn't hose the database.
Appending a ROWNUM to the WHERE clause is one idea. Using USER PROFILEs is another. Any other thoughts??
Dare I ask...this custom app also runs on SQL Server, so SQL Server ideas would also be appreciated.
Many thanks!!!
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Author: STEVE OLLIG
INET: sollig_at_lifetouch.com
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Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services ---------------------------------------------------------------------To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Tue Oct 29 2002 - 14:53:43 CST
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