Try this one:
SELECT a.username, a.first_name,
a.last_name,COALESCE(COUNT(b.username), 0) AS count
FROM user_list a
LEFT JOIN login_table b ON a.username = b.username
GROUP BY a.username,a.first_name,a.lastname;
The LEFT JOIN will ensure you still get a result row even if there are
no match
On Jan 30, 2008, at 10:44 AM, Jerry Schwartz wrote:
mysqldump -A > file.dump
tar -jcf file.dump
rsync
[JS] You could also just pipe the output of mysqldump through gzip.
tar buys
you nothing, since it is a single file.
-j is the bzip2 compression option. :)
[JS] Yes, but tar is just extra b
Is there a reason this wouldn't work with InnoDB? (I understand
there's usually a single ibdata file, but so?)
On Jan 24, 2008, at 8:08 AM, Matthias Witte wrote:
On Thu, Jan 24, 2008 at 01:42:38PM +0200, Ivan Levchenko wrote:
Hi All,
What would be the best way to transfer a 20 gig db from
On Jan 29, 2008, at 10:02 AM, Jerry Schwartz wrote:
mysqldump -A > file.dump
tar -jcf file.dump
rsync
[JS] You could also just pipe the output of mysqldump through gzip.
tar buys
you nothing, since it is a single file.
-j is the bzip2 compression option. :)
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On Jan 29, 2008, at 6:21 PM, BJ Swope wrote:
drop the indexes for the conversion then rebuild the indexes after the
tables are converted.
As noted in my original email, I tried that, but Jan's suggestion re:
InnoDB tuning fixed it.
Thanks for the advice, everyone!
David
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MySQL General
On Jan 29, 2008, at 7:04 PM, Jan Kirchhoff wrote:
play around with innodb_log_buffer_size, innodb_log_file_size and
try to set innodb_flush_log_at_trx_commit=0.
Do you don't have a BBU on your raid-controller?
let me know if that changes anything.
That did it! I upped the log_buffer_size
On Jan 29, 2008, at 6:09 PM, Jan Kirchhoff wrote:
what hardware are you running on and you much memory do you have?
what version of mysql?| |
How did you set innodb_buffer_pool_size?
Hardware:
Dual AMD Opteron 246 2.0 GHz
4 GB DDR RAM (no swap being used)
Dual 146 GB SCSI drives with a RAID
On Jan 29, 2008, at 4:37 PM, Baron Schwartz wrote:
It's because your index is bigger than your memory (or at least bigger
than your InnoDB buffer pool). InnoDB can't build indexes by sorting
rows, so building the indexes gets slow.
Hmm, this would be an interesting theory for the main table i
Hi all,
I am attempting to convert a very large table (~23 million rows) from
MyISAM to InnoDB. If I do it in chunks of one million at a time, the
first million are very fast (approx. 3 minutes or so), and then it
gets progressively worse, until by the time I get even to the fourth
chunk
t.
Yes, it's dumb.
On Nov 7, 2007, at 2:53 AM, Lucky Wijaya wrote:
No, I didn't set the delimiter. But, it still have an error after I
set delimiter in my trigger as your example. By the way, what's
delimiter mean ? And what it's for ?
Thanks to you Mr. David.
David
Lucky,
Did you make sure to set your delimiter before and after the CREATE
TRIGGER statement? e.g.:
DELIMITER ;;
CREATE TRIGGER DEL_TB_INSTRUKSI AFTER DELETE ON Tb_Instruksi
FOR EACH ROW
BEGIN
DELETE FROM Tb_Stuffing WHERE No_Instruksi = OLD.No_Instruksi;
END;;
DELIMITER ;
On Nov 6, 2007
/bugs.mysql.com/bug.php?id=16927
This occurred shortly after the server ID conflict, and exactly when
the master was melting down.
David
On Sep 14, 2007, at 4:11 AM, Jeremy Cole wrote:
Hi David,
This sounds strange, and should NOT occur because of a server_id
conflict.
Regards,
Jeremy
Da
, Shawn Green wrote:
Hello David,
David Schneider-Joseph wrote:
Hi all,
What do you know about the effect of conflicting slave server IDs
on the master in general? And specifically, are you aware of any
issues with MySQL 5.0.27?
Your help is very much appreciated.
Thanks!
David
Repeating
Hi all,
What do you know about the effect of conflicting slave server IDs on
the master in general? And specifically, are you aware of any issues
with MySQL 5.0.27?
Your help is very much appreciated.
Thanks!
David
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For list archives: http://lists.mysql.com/m
Try this:
SELECT RMAs.rma_id FROM RMAs, rma_line_items
WHERE TO_DAYS(date_settled) = 733274
AND RMAs.rma_id = rma_line_items.rma_id
GROUP BY RMAs.rma_id HAVING COUNT(*) > 1
On Sep 10, 2007, at 11:36 PM, Mike Mannakee wrote:
I have two tables, one called RMAs and the other called
rma_line_item
Hi all,
Starting Wednesday night, we observed several weird errors indicative
of data corruption shortly before a CPU spike and complete crash on
our master db server (opera.oursite.com). opera.oursite.com had
crashed twice with signal 11 in recent weeks, but we had never
observed any data corrup
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