What is the relation b/w view and trigger

Answer Posted / rajesh venati

View are classified in to two types.
1. Simple View
2. Complex View

==>DML Operations are not possible in complex views, because,
if u create a view more than one table or
if u create a view using group function or
if u create a view using distinct keyword etc.,
those are called complex view.

If u want perform DML Operations on Complex Views, then we
will go for Instead of Trigger.

Through the Instead of Triggers we can perform DML
Operations on a Complex View.

Is This Answer Correct ?    30 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is native sql query?

725


What is inner join in sql?

766


What is clause in sql?

750


Is merge a dml statement?

725


Under what condition it is possible to have a page level lock and row lock at the same time for a query? : Transact sql

731






What is the difference between microsoft sql and mysql?

704


What is the difference between the conventional and direct path loader? : aql loader

861


What are the qualities of 2nf?

747


Can there be more than one function with a similar name in a pl/sql block?

740


what is csv? : Sql dba

750


Which one is better subquery or joins?

766


What is a unique key?

770


Can you skip header records while loading? : aql loader

717


What is cost in sql execution plan?

674


what is myisam? : Sql dba

752