what is the sequence when using cursor?

593

System Testing for Mainframe Developers What is System Testing? integration testing ? what's the procedure ..

1573

How does coalesce work?

573

Explain the jcl exec statement?

637

suppose if you added a coloumn to db2 table, How would it be the Impact analysis?

1505

What is report-item in COBOL?

700

Explain the difference between pseudo-conversational and conversational?

552

What is compiler directive in as400? Give example of compiler directive.?

564

what does the ovrdbf command do?

661

How you can characterize tables in cobol?

705

how do you reference the esds vsam file formats from cobol programs

621

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.

2137

What will be the result if on size error phrase is declared?

492

What is the default value(s) for an initialize and what keyword allows for an override of the default?

680

How did the release of cobol/370 version 1.3 improve the performance of release 1.1?

630