How to pass the parameter in parm using linkage section ? (syntax)?

652

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.

2155

What are the recoverable cics resources?

600

What is db2?

741

State the maximum number of tables that can be joined?

575

Explain how to move cursor to a particular field when position is not known?

538

What is perform what is varying?

709

How to check sequence on a table in db2?

600

What is fset?

573

How do you pull up a query which was previously saved in qmf?

674

Define an aica abend?

618

What does sqlcabc has?

633

What is concatenating?

635

Is the order of the when clause important in an evaluate statement? Is the order of the when clause significant in an evaluate statement?

569

how would you create a temporary dataset? And where will you use them?

768