What is the purpose of a secondary key?
No Answer is Posted For this Question
Be the First to Post Answer
in a package one procedure is wrong package shows valid or not
Explain the difference between rename and alias?
What is pl/sql language case sensitive?
Hi, Can anybody please explain me the flow of the below query. I am not able to understand how this query works. This query is for finding the Nth highest salary.. SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal); If N = 2 then second highest salary will be the o/p. If N = 3 then third highest salary will be the o/p. and so on.. Thanks, Nitin
5 Answers Deloitte, Ness Technologies,
how many sql dml commands are supported by 'mysql'? : Sql dba
Write a query to get 2nd maximum salary in an employee table ?
69 Answers Accenture, BirlaSoft, Letse, Logica CMG, Qwest, Rheal Software, Saagam, Semantic Space, Tailor Solution, TCS, TinyERP,
What does the sign mean in sql?
What steps server process has to take to execute an update statement?
Is pl sql a programming language?
Explain the rollback statement?
What is raid? How does it help storage of databases?
Do ddl statements need commit?
Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)
Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)
DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)
Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)
Database Management (1411)
Databases AllOther (288)