Suppose if I need to update a column, how you do that using cursor?

2 Answers   Verizon,

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What is ibm db2 used for?

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can any one provide me the link for the db2 v7 & db2 v8 manual for Z/os? i need to know about the syntax of REORG in both versions & need to know the difference as well

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How do we specify index to include or not during bind process.

0 Answers   Satyam,

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Parm value passed is PARM=(10,20). how do code linkage section and how would you add these two passes values and show result in cobol program.

3 Answers   IBM,

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What is db2 look?

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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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What is db2 connect?

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Which is faster delete or truncate?

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What is the function of buffer manager?

1 Answers  

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What does runstats do in db2?

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What is lock escalation in db2?

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