How to check table size in db2 sap?
What is null indicator in db2?
What is clone table?
What is the max length of 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 copy pending and check pending in db2?
How to restart a DB2 program?
Are view updateable?
Which command is used to remove all rows from a table?
What is difference between isnull and coalesce?
What is a dbrm in db2?
Which isolation level provides highest data integrity?
What is rct?
Comment whether the cursor is closed during commit or not.
How can you classify the locks in db2?