Which one allows duplicate values Union or Union All ?

Answer Posted / surendra reddy

union does not allow duplicates

union all allowed duplicate values

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What does db2 blu stand for?

656


What is the syntax for creating a table in the db2 database?

623


Name the various locking levels available?

627


What is a db2 tablespace?

593


what is the responsibility of the construction superintendent

1655






What are types of indexes?

587


How is a typical db2 batch pgm executed?

634


How is deadlock resolved?

646


Which isolation level provides highest data integrity?

589


What is null value in db2?

557


What is phantom read in db2?

636


What is db2 connect?

595


How can record locking be achieved in those DB2 versions which do not support it?

619


What is nvl in db2?

620


Explain various types of locks in db2?

683