How to view db2 table structure?

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What is a db2 tablespace?

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what is the process of precompiler?

2 Answers  

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SET is the ANSI standard for variable assignment, SELECT is not. SET can only assign one variable at a time, SELECT can make multiple assignments at once. If assigning from a query, SET can only assign a scalar value. If the query returns multiple values/rows then SET will raise an error. SELECT will assign one of the values to the variable and hide the fact that multiple values were returned (so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one) When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from it's previous value) As far as speed differences - there are no direct differences between SET and SELECT. However SELECT's ability to make multiple assignments in one shot does give it a slight speed advantage over SET.

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Where is the output of EXPLAIN stored?

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what needs to be done if a table is in copy pending / check pending status?

5 Answers   Xansa,

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What does db2 stand for?

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Can you use a select query in a loop to fetch multiple rows? If so what is the advantage of using a cursor?

2 Answers   L&T, UST,

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how to resolve -811 sqlcode .give clear explaination

3 Answers   IBM,

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How to run db2 command in windows?

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OUTER JOINS USED TO GET MATCHING AND NONMATCHING ROWS FORM 2 OR MORE TABLES BASED ON COLUMNS. SIMPLE JOINS ALSO DO THE SAME THEN WHAT IS THE USE OF OUTER JOINS.

1 Answers   Syntel,

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How do I change the column size in db2?

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