adspace


Explain what is a subquery ?

Answer Posted / Km. Jyoti Gill

A subquery is a SQL query that is nested inside another SQL query. The result of the subquery is used in the outer query to filter, join, or perform other operations on the main data.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can delete statement be rollbacked?

1054


What is the best sql course?

1050


What is the current version of postgresql?

1178


what is dbms? : Sql dba

1061


How do I remove duplicates in two columns?

1187


what is bcp? When does it used? : Sql dba

1056


Hi am new to PLSQL & facing problems in writing code like in SP, Functions, so any one having some SP coding with in depth explanation please share with me my Email ID suvarnaatsuvarna@rediffmail.com Or taking tanning on this please do contact me

2091


Is inner join faster than left join?

1277


Does group by remove duplicates?

1112


What is the current version of sql?

1094


If a cursor is open, how can we find in a pl/sql block?

1238


what is schema? : Sql dba

1147


Do we need to rebuild index after truncate?

1138


Is primary key always clustered index?

1095


what are the advantages of sql ? : Sql dba

1142