List,
I have been mulling over this for a few days reading docs and going back and
forth with people on this, so I figured I would come here before writing up a
bug report.
First of all, I have tested this on 4.1.18, 5.0.16, and 5.0.22 within Solaris
9 and Mandrake Linux LE 2005
You can add an offset in the Limit statement. Look at the Select Syntax in
the docs.
There is an even simpler solution to this problem. Use your creation field
within a Where clause instead of using Order by and Limit.
-Dan
I'm trying to delete all but the newest n records.
DELETE
, Dan Julson wrote:
You can add an offset in the Limit statement. Look at the Select
Syntax in
the docs.
There is an even simpler solution to this problem. Use your
creation field
within a Where clause instead of using Order by and Limit.
-Dan
I'm trying to delete all but the newest n
Brian,
Look at the ON DUPLICATE KEY UPDATE syntax within the INSERT SYNTAX of the
Docs. That should give you what you want.
-Dan
I have a need to insert a record only when the combination of 3
fields is unique. I do this by having an index with all 3 fields, and
doing an INSERT IGNORE. This
1234
1235
1236
or;
select ID from T1 where ID = 1237 and ID1237 and ID 1237 LIMIT 3 I
would want
1236
1238
I would be surprised if there was no way of doing this.but then
again, I'm often surprised
Thanks
Michael
--
Michael DePhillips
www.star.bnl.gov
--
Have a great day,
Dan
Xiaobo,
Using mysqldump, you can specify which tables to copy. The man for mysqldump
is as such: mysqldump [options] [dbname [tablename]]
Say db 'db' has tables x, y, and z in it. You only want to copy table x.
mysqldump db x x.sql(or whatever you want to name it).
Dan
Thank you
?
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Have a great day,
Dan Julson
Application Software Engineer
API Outsourcing
1355 Mendota Heights Rd.
Mendota Heights, MN 55120
651-675-2628 (work)
952-456-2067
