On Thu Jul 10, 2014 at 01:52:00PM +0100, Tim Streater wrote:
>
> What I'm actually doing is moving/copying a row from one database to
> another, where the two databases have identical schemas.
> ...
>
> So there are two copy steps. What I'd like to do is:
>
> ...
>
> but unfortunately there could easily be a conflict in the absid
> values, so I have to be able to set it to null to get a new value
> generated.
You were almost there. You can do it in one go if you specify the
columns exactly:
INSERT INTO
dst.messages(
col1,
col2,
col3
)
SELECT
col1,
col2,
col3
FROM
main.messages
WHERE
absid = some_value
;
And then retrieve the last rowid:
SELECT last_insert_rowid();
Mark.
--
Mark Lawrence
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