Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / bhaskar reddy
select * from table1 a where(n-1)= (select count(distinct
sal) from table1 b where b.sal>a.sal)
| Is This Answer Correct ? | 6 Yes | 5 No |
Post New Answer View All Answers
What is the role of union all and union
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.
How can we retrieve the total number of records in RPG & CLLE?
How do I delete a column in db2?
Comment whether dclgen is mandatorily used. If not, then what is the point of using it?
How can you classify the locks in db2?
What is db2 bind process?
Define db2.
How to retrieve rows from a db2 table in embedded sql?
What are the full forms of spufi and dclgen and why are they used?
What is the max length of sqlca?
Hi, i would like to start a new carrier in DB2 DBA.Which and what all step should i have to take..?
How to execute stored procedure in db2 command editor?
How can tablespace be moved to another dasd volume that is allocated for that tablespace?
List down the types of triggers in the db2 database?
