Re: UPDATE with multiple WHERE conditions
| От | Ron Johnson |
|---|---|
| Тема | Re: UPDATE with multiple WHERE conditions |
| Дата | |
| Msg-id | CANzqJaB48SjPZrOqEn-wawob+GfKQrwLouyNP_zoPW_5QsvFFw@mail.gmail.com обсуждение исходный текст |
| Ответ на | UPDATE with multiple WHERE conditions (Rich Shepard <rshepard@appl-ecosys.com>) |
| Ответы |
Re: UPDATE with multiple WHERE conditions
Re: UPDATE with multiple WHERE conditions |
| Список | pgsql-general |
On Wed, Jun 12, 2024 at 5:28 PM Rich Shepard <rshepard@appl-ecosys.com> wrote:
I have a table with 3492 rows. I want to update a boolean column from
'false' to 'true' for 295 rows based on the value of another column.
Is there a way to access a file with those condition values? If not, should
I create a temporary table with one column containing those values, or do I
write a psql script with 295 lines, one for each row to be updated?
A plain UPDATE might work.
UPDATE to_be_updated a
SET bool_col = true
FROM other_table b
AND b.field3 = mumble;
(You can join them, right?)
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