Answer Posted / chinmay
cursor is a programming devive which can keep to allow a set of rows and return them one row at a time because the host language can deal one row at time
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What is the difference between "db2ilist" and "db2 get instance" commands in DB2 Database Server?
How do I add a column to a table in db2?
Is schema the same as database?
What does db2 stand for?
File not opened because library is *PROD and debug is UPDPROD(*NO). ? what may be the reason? how to solve it..?
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List down the data types in the db2 database.
Can there be more than one cursor open for any program?
List out the data types available.
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 cursor stability in db2?
List out the three types of page locks that can be held.
