what is different between inline query,subquery& corelated
query?
Answer Posted / sharath
Sorry the query posted above is not the one. Please see the
below query.
Can we use one subquery in another. I have got a situation
like this
select
(select date from t1 where t1.col1=table.col1) date,
((select date from t1 where t1.col1=table.col1)*7) week,
(((select date from t1 where t1.col1=table.col1)*7)
+start_date) transfer
from table;
Somewhat like this.
The point is the first subquery is used in second,
third,fourth subqueries. Instead of writing them again, can
we avoid them.
I needed to know whether the first
subquery can be used in the second subquery and the next
subqueries??Or any hints as such just to make the query
faster??
| Is This Answer Correct ? | 3 Yes | 7 No |
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