what is Complex index. how to create it?

Answers were Sorted based on User's Feedback



what is Complex index. how to create it?..

Answer / reddibasha

Do you mean Composite Index?

Composite index is the index created on multiple columns of
a table. A maximum of 16 columns can be used as a composite
index. It can be created at table level only. Unique,
Primary Key and Foreign Key can be composite keys.

Ex:
Create table emp
(eno number,
ename varchar(5),
dob date,
sal number,
dno number,
Primary Key(eno, ename) -- Composite Index
);

Is This Answer Correct ?    2 Yes 2 No

what is Complex index. how to create it?..

Answer / naren patidar

In cluster data of two table store in one object(cluster)
that generates a index that can identify rows of both of
table..



naren

Is This Answer Correct ?    1 Yes 1 No

Post New Answer

More SQL PLSQL Interview Questions

How much does a sql dba make? : SQL DBA

0 Answers  


What is a unique key?

0 Answers  


how would you enter characters as hex numbers? : Sql dba

0 Answers  


what are date and time functions in mysql? : Sql dba

0 Answers  


What is a behavioral trigger?

0 Answers  






How do I quit sql?

0 Answers  


What are the advantages of sql?

0 Answers  


what are all the common sql function? : Sql dba

0 Answers  


Difference between IN and EXISTS

4 Answers   Nous, Polaris,


What sql does db2 use?

0 Answers  


what are the nonstandard string types? : Sql dba

0 Answers  


Which is better trigger or stored procedure?

0 Answers  


Categories