What is the disadvantage of using subquery exact after a
select statement?ex.
select (select * from sometable)
Answer / sandeep
Main difference is the outer and inner querries are
independent each other. This executes inner querry for each
and every rows in outer querry. It is better to use joins
instead of sub querries where it is possible. But in some
cases we cud use subquerries
| Is This Answer Correct ? | 12 Yes | 0 No |
1.what is the difference between view and cursor? 2.If we do any change in view will it affect the database,similarly when we do changes in cursor will it affect the databse?with certain example?Thanks
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