| From: | <paul(dot)malm(at)lfv(dot)se> |
|---|---|
| To: | <pgsql-general(at)lists(dot)postgresql(dot)org> |
| Subject: | Help with a selection |
| Date: | 2019-07-04 09:51:01 |
| Message-ID: | 785199B14156764C8EB14EF96CEDC44EE0C8EB@xw-exch03.lfv.se |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
Hi,
I have a column named col (varchar)
col could look like this
902930
902920
902900
903110
913210
913200
...
I would like to remove an object that doesn't end '00' and if there are objects that start with the same 4 charcters and ending with 00.
All objects ending with 00 shall remain.
All object not ending with 00 shall remain of there is no object starting with the same 4 characters and ending with 00
The result of the col table should be:
902900
903110
913200
903110 is not removed because there is no 903100
913210 is removed because there is a 913200
902930 and 902920 are removed because there is 902900
I hope you understand the logic , perhaps there is no logic in my explanation.
Thanks in advance,
Paul
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Dirk Mika | 2019-07-04 10:01:02 | Re: Help with a selection |
| Previous Message | Dirk Mika | 2019-07-04 08:57:01 | Re: Expression of check constraint |