User problem

Dear gurus,

I have a strange problem with the oracle DB here.

I joined a company DBA, they have a database with 3 users.

each runs a select statement to extract the most primarykey_id of the table.

A user takes milliseconds to get the result.

Other two take more than 5 currencies... sometimes timeout.

I find it hard to tackle the issue. Can anyone guide me as to what I can check why these users of DB are on long?

Thank you

Saad

Hello Saad,

a few ideas:
put the sessions in trace mode, run the query in each session, run tkprof on the trail.
Also consider if there is a trigger shot "logon" which could change the settings of the optimizer at the session level.

Are there transactions involving table when you run the instructions (example: User A has updated several lines, but has not issued a "commit", then the 3 "select max..." is cooked.) In this case, B and C have more work to find the info (they will have to go to the RETURN of copies)?

When B and C sessions are running, control (of another session) on what they expect.

Best regards

Bruno Vroman.

Tags: Database

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