I'd love to get the offset working if possible.
Since offset is not in the supported syntax for deletes (see
http://dev.mysql.com/doc/refman/5.0/en/delete.html), I think you'll
have some trouble with that.
You could do something like this:
SELECT @theDeadline := `timestamp` FROM `table` ORDER
Hi Brian,
Jeremy Cole
MySQL Geek, Yahoo! Inc.
Desk: 408 349 5104
Yahoo employs MySQL geeks? Always wondered what db that big index runs
on... :)
Do note that Yahoo! is a lot more than a search engine. :) The big
index is not running in MySQL, but a whole lot more is.
And yes, we
On Nov 6, 2005, at 6:05 PM, Jeremy Cole wrote:
DELETE FROM tbl ORDER BY ts DESC LIMIT 100, 99;
That's exactly needed: I was not aware of the OFFSET option. So I
tried this, which appears correct to me:
DELETE FROM table
WHERE field='somevalue'
ORDER BY timestamp DESC
LIMIT
On Nov 7, 2005, at 11:04 AM, Scott Noyes wrote:
delete from x where ID not in (select ID from x order by timestamp
desc limit
100);
It's a good suggestion, I'm just shying away from it because it seems
more resource intensive than using an offset, and my ISP is super
anal about
Interesting thought. I just tried it with and even 999 - same
error! I'm sure that 999 records is not too large for MySQL... :) :)
On Nov 7, 2005, at 4:52 PM, Joseph Cochran wrote:
The quoted line is 99 but you're using , which I
presume is too big for the system to
On Nov 7, 2005, at 11:04 AM, Scott Noyes wrote:
delete from x where ID not in (select ID from x
order by timestamp desc
limit
100);
It's a good suggestion, I'm just shying away from it
because it seems
more resource intensive than using an offset, and my
ISP is super anal
about
all but the newest 100 records from a table. I
have a timestamp field. I can't figure out how to do this in a single
SQL statement - can anyone help? Thanks!
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söndagen den 6 november 2005 16:15 skrev Brian Dunning:
I'd like to delete all but the newest 100 records from a table. I
have a timestamp field. I can't figure out how to do this in a single
SQL statement - can anyone help? Thanks!
I'd try something like this:
delete from x where ID
The problem is the most recent 100 records won't be sequential. There
are records with many different identifiers, in random order mixed
with other records that I don't want deleted, and each time I do this
I'm going to be limiting each subset of identified records to only
the most recent
Hi Brian,
I'd like to delete all but the newest 100 records from a table. I have
a timestamp field. I can't figure out how to do this in a single SQL
statement - can anyone help? Thanks!
This should work:
DELETE FROM tbl ORDER BY ts DESC LIMIT 100, 99;
Note that ORDER BY and LIMIT
On Nov 6, 2005, at 6:05 PM, Jeremy Cole wrote:
Jeremy Cole
MySQL Geek, Yahoo! Inc.
Desk: 408 349 5104
Yahoo employs MySQL geeks? Always wondered what db that big index
runs on... :)
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For list archives: http://lists.mysql.com/mysql
To unsubscribe:
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