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karthi_ind

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Joined: 24 Feb 2004
Posts: 131
Location: Chennai

PostPosted: Fri Aug 13, 2004 4:40 pm    Post subject: questions
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hi

1) What is performance Tuning in db2?

2) Which one precedes first (Group by or Order by)?

3) Real use of Explain ?

bye
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RamKumar

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Joined: 11 Aug 2004
Posts: 3

PostPosted: Fri Aug 13, 2004 7:24 pm    Post subject: Answer
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Hi
Answer for 3rd question :
first group by then order by

Answer for 2nd question
Explain : It is optimizer choice of access path
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