Answer Posted / sunil1405
Its an utility to flush all the buffers
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Define sqlca.
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.
What is the max length of sqlca?
How do I copy a table in db2?
I understand Join always perform better than subqueries. Then what is the advantage/use of Subqueries/correlated subqueries etc.,in DB2 programming.Please explain.
What is page size in db2?
How do I delete a column in db2?
How to compare data between two tables in db2?
What is db2? Explain.
What is the purpose of using commit?
Where can you declare a cursor in a cobol-db2 program?
What is null value in db2?
Mention the various locks that are available in db2.
Is schema the same as database?
i want to maintain uniqueness on pdf without make lf??????????
