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What r the comman abends in db2, jcl and cobol???????
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How do I import data from excel to db2?
Once you create a view, where would information about the view be stored?
What is with ur in db2?
what is the difference between normal select query and currosor
Is there any advantage to denormalizing DB2 tables?
When the like statement is used?
What is a correlated sub query?
How do we specify index to include or not during bind process.
Is it possible to precompile if db2 goes down?
Can we delete records from view?
How do I delete a table in database?
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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