Re: PL/SQL string parsing question

On Fri, 15 Mar 2002 09:19:07 -0500, "Xiaobin Guan" <xiaguan_at_nhgri.nih.gov> wrote:

>Hello,
>
>Here is what I need to do:
>I have a varchar2 column, or maybe clob, saying it contains 500 characters
>(all letters, with no space in between). Then I need to take some characters
>out by order numbers, saying I don't need number 23 to 49, 148-169. Now I
>have three pieces left. The first one is from 1-22 (22 characters), The
>second one is from 50-147, and the third one is from 170 - 500. The last
>thing I need to do is compare these pieces and pick up the longest one.
>
>Any idea how can I do these in PL/SQL?
>
>Thanks a lot,
>Xiaobin
>

This question has the word HOMEWORK written all over it. Please refer to the substr and length functions and try to resolve it yourself. You will learn from it.

Regards

Sybrand Bakker, Senior Oracle DBA

To reply remove -verwijderdit from my e-mail address Received on Fri Mar 15 2002 - 09:08:55 CST