How can analyze query after generating explain plan ?

Answer Posted / chiranjeevi

After generating explan plan the out put of the query
stored in plan_table.from this table if you finding any
table access (full) in output,the query having perfomence
problem.

according you can create the index or primary key or unique
in proper table.

Is This Answer Correct ?    3 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How does a covering index work?

687


What found sql?

696


When are we going to use truncate and delete?

712


Explain the difference between sql and mysql.

751


Is progress software supports to ( pl/sql )?

711






What is set serveroutput on in pl sql?

803


Why stored procedures are faster than query?

757


What is difference between joins and union?

742


What is orm in sql?

716


Can a composite key be null?

710


what are the properties and different types of sub-queries? : Sql dba

699


What is the difference between row level and statement level trigger?

715


what is the syntax for using sql_variant_property? : Transact sql

700


Why do we need unique key in a table?

672


What is the difference between the sql*loader and import utilities? : aql loader

754