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The select command is used SELECT the data from the
database.
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i want to maintain uniqueness on pdf without make lf??????????
How do I create a view in db2?
Describe major components of db2?
List out the data types available.
What is role in db2?
What is load utility in db2?
What is the connection string to connect to the DB2 Database ?
What is db2 instance?
can all users have the privilage to use the sql statement select * (dml)?
How do I start db2 in windows?
How would you find out the total number of rows in a db2 table?
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.
Cursors can be declared in both working-storage & procedure division, agreed. But is there any difference? If could you please suggest what is the difference
List out the buffer pools in db2
What is difference between isnull and coalesce?
