Hi All,
The index created by me is not being used while doing
select. I found that out by using the EXPLAIN. For
example:
Table department has
----------------
dept_num
dept_desc
Table 'employee' looks like this:
--------------------------------
emp_num primary key,
emp_name,
dept_num (this is by way of foreign key relation from
department table)
Now, I create an index on the employee table using
'dept_num' as the attribute. And when I run select
which looks like:
Explain Select * from employee where dept_num =
'Finance';
It does not use the index and tells me that a
Sequential scan will be done on the table employee.
How do I fix this?
Thanx in advance,
Subra
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