the easiest would be to have a function based index on the column.
joe
> Steve Haas wrote:
>
> Good morning,
>
> Env't: Oracle 8.1.5, HP-UX 11.0 (64 bit)
>
> Given the following tables:
> emp with 100 rows
> dept with 10 rows
>
> and this SQL:
> select emp.ename, initcap(dept.deptname)
> from emp.dept
> where emp.deptno = emp.deptno;
>
> The questions -
> How many times is the initcap(dept.deptname) function actually
> "executed"?
> Is it once for each emp row (100 times) or once for each dept row (10
> times) or some other value?
>
> Another scenario -
> Would it be faster to retrieve rows with a bunch of similar functions
> (initcap, concatenations of columns and/or literals, etc) or to have
> and maintain the data in columns with the data formatted as such?
>
> TIA gurus...
>
> Steve Haas
> Opus Consultants, LLC
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