2006/9/19, Peter Van Dijck [EMAIL PROTECTED]:
Hi all,
trying to figure out if there is a query I can use for this, or if I
have to write a php script to loop tru each row...
table1:
entryid int(11)
itemid int(11)
table2:
object_id int(11)
The situation is: table2.objectid is populated
2006/9/8, Andrew W. Nosenko [EMAIL PROTECTED]:
Sorry, but documentation on the MySQL C API say nothing about many
interesting questions.
The one of them: is it safe (or unsafe) to use non-MT client library
(libmysqlclient.*, as opposite to the MT-aware libmysqlclient_r.*) for
the multithreading
2006/9/6, Jørn Dahl-Stamnes [EMAIL PROTECTED]:
I get the following query:
select rt.team_id,count(p.race_id) as cnt,sum(p.points) as
sum_score,sum(p.points) / count(p.race_id) as avg_score from some tables,
joins and where-criterias group by rt.team_id order by avg_score desc;
which gives:
2006/9/5, Ben Lachman [EMAIL PROTECTED]:
So possibly a better solution would be to create a temporary table
and then do a subquery on that table?
yes. Or do a :
SELECT id FROM t1 WHERE name LIKE '%s1%' OR name LIKE %'s2%' OR name
LIKE '%s3%'
but depending on your data, a table may be the way
2006/9/4, [EMAIL PROTECTED] [EMAIL PROTECTED]:
Hello all,
I need to perform an SQL statement over 5 different tables, with complex
request. To do so, i'm using subqueries.
SELECT ... FROM (SELECT .WHERE) as T1 LEFT JOIN (SELECT
.WHERE) as T2 WHERE .
The problem is that
Hi,
I need to upgrade a server from Solaris 8 to Solaris 10. There is one
MySQL server running on it, (the binary
mysql-standard-4.1.15-sun-solaris2.8-sparc from mysql.com), do I need
to upgrade MySQL as well ? (to
mysql-standard-4.1.x-sun-solaris2.10-sparc ?)
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2006/4/25, -Patrick [EMAIL PROTECTED]:
$query_rsComments = sprintf(SELECT id_com WHERE idart_com=%s ORDER BY
date_com ASC, $KTColParam1_rsComments);
can anyone see what Im trying to do here? basically, I want to match the
id_com with an idart_com to produce a value and report back through
2006/4/25, Chris Sansom [EMAIL PROTECTED]:
At 15:56 +0200 25/4/06, Barry wrote:
And you don't see any misdone queries when you echo them, right?
Hope you checked that.
Hi Barry
I was wrong about its being a PHP issue: it's
definitely a MySQL error. I realised I hadn't
handled the error in
Hi,
I've read the manual, but it seems there is not the option I'm looking for.
I would like to dump all tables but one. Is that possible ?
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2006/4/25, Kishore Jalleda [EMAIL PROTECTED]:
There is an option to ignore tables from being dumped
--ignore-table=db_name.tbl_name
Excellent :-) My man page is not up-to-date, and wasn't showing it. thanks
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2006/4/22, abhishek jain [EMAIL PROTECTED]:
Dear Friends,
I have two table joined by the followng query, the problem is this simple
query takes a lot of time greater than 10 mins depending on the number of
records, Pl. help me find out the reason:
Table 1:
id_key primary and auto increment
Hi,
mysql select * from user_todo_german_english where wordid = '86851' and
posn = '1' and pos = 'm' AND mb_id='curious';
+-++--+--+-+
| mb_id | wordid | posn | pos | date_col|
+-++--+--+-+
Hi,
2006/4/20, Adam Wolff [EMAIL PROTECTED]:
Hi. I'm new to database optimization and I have a couple of questions.
I have a table like this:
+++-+-+
| id | fullname | email | user_id |
2006/4/14, Philippe Poelvoorde [EMAIL PROTECTED]:
Hi,
I have one table :
CREATE TABLE `ressources_summary` (
`res_type` tinyint(3) unsigned NOT NULL default '0',
`res_id` int(10) unsigned NOT NULL default '0',
`comment_count` smallint(5) unsigned NOT NULL default '0
2006/4/18, Pedro mpa [EMAIL PROTECTED]:
Greetings.
I have Text fields in some tables which contain text in Portuguese with
accent characters like á, à, é, í, ú, ü, ó, ö, ç, etc.
When I query like:
SELECT text_column
FROM table
WHERE text_column LIKE '%maçã%'
[ or ]
WHERE text_column
Hi,
I have one table :
CREATE TABLE `ressources_summary` (
`res_type` tinyint(3) unsigned NOT NULL default '0',
`res_id` int(10) unsigned NOT NULL default '0',
`comment_count` smallint(5) unsigned NOT NULL default '0',
`comment_last_timestamp` timestamp NOT NULL default '-00-00
Hi,
Yeah - I think the playground is unlikely to happen. They certainly
haven't said anything about providing such a facility.
If they don't give a test machine, or don't provide a smooth migration
(like installing a new server, and keeping the old one running 3.23),
you should consider
2006/4/13, Duzenbury, Rich [EMAIL PROTECTED]:
Hi all,
I have two servers that have production data on them, and then one
server where I would like to keep an active copy of the data.
Currently, there is a job that runs in the middle of the night that
basically does a
mysqldump
2006/4/13, Puiu Hrenciuc [EMAIL PROTECTED]:
Hi,
I have a table ( MyISAM, MySQL 5.0.20, FreeBSD ) containing network traffic
data :
record_time datetime - time when recording was added
ip char(15) - ip that generated the traffic
type tinyint(3) - traffic type ( 1 - local, 2 - internet )
2006/4/8, Philippe Poelvoorde [EMAIL PROTECTED]:
Hi,
2006/4/8, Dan Buettner [EMAIL PROTECTED]:
Seems like what you're looking for is a way to query your database
more efficiently/quickly, and still find all links in either
direction.
I think the use of a UNION statement should allow
Hi,
2006/4/8, Dan Buettner [EMAIL PROTECTED]:
Seems like what you're looking for is a way to query your database
more efficiently/quickly, and still find all links in either
direction.
I think the use of a UNION statement should allow this. Basically
write your query twice, joining on id1
2006/4/7, Charles Q. Shen [EMAIL PROTECTED]:
Hi all,
I am running MySQL 4.1.11 with an innoDB table holding about 17GB of
records. I took a few hundreds of randomly selected records from the table
and measured the average access time:
1st test: average access time is 600ms
2nd test:
2006/4/7, Charles Q. Shen [EMAIL PROTECTED]:
The OS used are Mandriva and Fedora.
Can you explain more?
I'll make it quick, there is plenty of doc on a web that will explain
this better than I can.
Once you read few things from your hard drive (let's say the index
file for your table), it's
2006/4/5, Mechain Marc [EMAIL PROTECTED]:
Hi,
Thank you for your answer.
But is there a chance to be able to do it one day?
I think it could be a nice feature.
You still have the option to sponsor that feature ;-D
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---BeginMessage---
Hi,
Good day!
I read the forum in this link http://archives.neohapsis.com/archives/mysql/2005-q2/1532.htmland somehow I guess you people had tried programming MySQL in C successfully. I just hope that I can
/doc/mysql/en/innodb-transaction-isolation.html
try 'read uncommited', or just drop the transaction since what you are
observing is perfectly normal...
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tbl_primary
WHERE Province = 'Province1'
)
What about :
INSERT INTO tbl_secondary( FK_ORG, year )
SELECT PK_ORG, 2006
FROM tbl_primary
WHERE Province = 'Province1';
(If you are sure the SELECT returns only one row, and that you have a
UNIQUE index on (FK_ORG,Year). )
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. Any ideas? i suppose i may just
have to dump/load instead of copy files.
If you dump them, and reload them, they are usually fine.
If you want to retrieve the correct timestamp (as before), just do
SELECT timestamp + 0 as timestamp FROM ...
(for instance)
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at the documentation, but can't find anything on type
promotion. Where can I find this ?
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at the documentation, but can't find anything on type
promotion. Where can I find this ?
http://dev.mysql.com/doc/mysql/en/cast-functions.html
thank you ;)
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')
AND sg.Grade = 'A';
GROUP BY s.StudentID
HAVING COUNT(*) = 2;
What if the student has 2 result in maths (or 2 in chemistry) ??? ;-)
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Start your day with Yahoo! - make it your home page
http://www.yahoo.com/r/hs
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:
mysql_real_query(mysql, query, strlen(query));
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|
..
something like this should do it :
SELECT group, count(*) as members, sum(
IF(payment_type='creditcard',1,0)) as pay_by_card
FROM members, payments
WHERE members.memno=payments.memno
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' for 'varchar binary', as a result
'ABC' would next be different to 'abc' (but 'i' would also be different
to 'e').
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properly escape the data. (you don't need
the ascii conversion, just the escaping)
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by strlen(query_string); which culd lead to the broken
result.
http://dev.mysql.com/doc/mysql/en/mysql-real-query.html
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open another connection to the mysql server ?
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?
Cheers,
Lee
I think that :
http://dev.mysql.com/doc/mysql/en/example-maximum-row.html
would answer you question more than I ;)
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uninstall the previous mysql, switch if off, install the
new one, and start this one again).
Still have a look at the options changes between both versions. (should
not be a problem though).
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change the logging mode for dropped paquets, that should
give you a clue.
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+ nlmc + samp + tmc + gmc + yotmf AS total_points
Use the AS keyword, not the equal/assignment operator
FROM modelcup.ab_leader_board
WHERE sex = 'Female' AND cup = 'kids' AND current_pos 0
ORDER BY total_points ASC
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/local/mysql/bin/mysql_config --cflags
(you didn't attach your program, so I can't see what is going on)
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both your host _and_ unix_socket are null, this could not work if I
understand well the doc. Use either 127.0.0.1 for host if networking
is enable in mysql, or the full path to the unix socket (defaut
/var/lib/mysql/mysql.sock)
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using the mysqli extension, which is more secure and provides a
much better API.
much better API. If you don't use the multi-statement-feature, there's
absolutely no point upgrading, all the more so you can have both of them
compiled with PHP.
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i've googled and the only answer to problems like this has been to
reinstall the DB perl module. Ive tried this but still get same error.
any clues???
thanks in advance.
Ronan
Is libmysqlclient.so available in one of your LD_LIBRARY_PATH directory ?
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).
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FOR EACH ROW do_something;
INSERT INTO test(foo) VALUES ('a'),('b'),('c');
it would trigger trigger_name for the 3 inserts, right ? Any chance to
trigger trigger_name only once at the end ???
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-bruce
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Jigal van Hemert wrote:
From: Philippe Poelvoorde
[Note,
ALTER TABLE foo ADD userid integer unsigned NOT NULL auto_increment
BEFORE username, ADD PRIMARY KEY(userid);
does not seems to work, possibly a bug ?
]
No, you forgot the DROP PRIMARY KEY ;-)
well not really, that's the statement
();
you would spare a bit of bandwidth
my 2cts.
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be helpful.
http://dev.mysql.com/doc/mysql/en/mysql-optimization.html
You want to read, the one on optimizing Select and the one on columns
indexes.
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Hi,
snprintf(query_length,query,
INSERT INTO
idsmatch(sip,sport,dip,dport,HEX(payload))VALUES('%s',%d,'%s',%d,'%s'),
inet_ntoa(ip-saddr),dbsport,inet_ntoa(ip-daddr),dbdport,temp);
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);
Indeed :-)
Thanks for the correction
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attachments for the presence of
viruses. ITT Industries accepts no liability for any damage caused by any virus
transmitted by this e-mail.
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SET field=REPLACE(field,'plop','foo');
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results ?
How did you declare your decimal column ?
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but as mysql only supports regexp when matching,
I reckon a regex_replace would be a great idea... any plan for that
feature ?
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on this...
Cheers,
Andrew
MySQL, Query
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in the whole CNF file instead of underline ?
no, i think it depends the option configured (..a bit confusing, I know)
Gabriel
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folder (due to a
wrong working directory, try echo $PWD in your backup.sh). I had the
same pb when we setup our daily backup.
my mysql version is : 4.0.17
regards rafael
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]);
(providing you escape characters);
then the usual C function should do the trick (fopen, fwrite...)
or SELECT INTO OUTFILE (check the manual, I don't know the details ;) to
store the file on the server.
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difficult to manage so big DB with phpMyAdmin. Can you help me? Thanks...
Don't create a table per user, but instead add a field in one table to
reference this user, then you will have 150 times less tables to manage,
therefore logging and truncation on a monthly basis wil be easier.
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Michael Stassen wrote:
zzapper wrote:
Hi,
Final whinge: I wish the mysql website made it a little clearer
which features are recent additions, I suggested color coding.
Philippe Poelvoorde wrote:
snip
I reckon, it's a bit hidden in the middle :
Starting with MySQL 4.0.4, you can also
painful... (but it's great to have it in 4.0 as well as
multi-table updates)
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$B2+9bJv(B wrote:
(B i use this mail first .
(B
(B i have a problem in under sql program:
(B
(B
(B UPDATE
(B NGLDENHDT
(B SET
(B EDT_HUK_FLG = :EDT_HUK_FLG
(B WHERE
(B KAI_CDE = :KAI_CDE
(B AND EDT_NUM = (SELECT MAX(EDT_NUM)
(BFROM
favorite langage (PHP, Perl, Templeet, C...).
I know it's painful... (but it's great to have it in 4.0 as well as
multi-table updates)
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Thanx Philippe that stops me scratching about looking for a non-existant
solution.I'm happy to write
a perl script just
incompatibility might hit you.
and then do the upgrade (either with a mysaldump, or just by upgrading
your binary)
Any help would be apreciated.
Warm Regards,
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is needed
by the linker)
HIMH
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tutorial and examples?
Thank you,
Vicente Valero
the C api is here :
http://dev.mysql.com/doc/mysql/en/c.html
the c++ here :
http://tangentsoft.net/mysql++/
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date_sub(CURRENT_TIMESTAMP(), interval 2 day)
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, it's fine with me, but I still don't undestand why it does
happen.
Thanks for your help,
Well, I'm sure it's a bug hidden somewhere in my apps, i've check with
another connexion and it worked ;)
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, MySQL MS SQL
Server
Upscene Productions
http://www.upscene.com
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Philippe Poelvoorde wrote:
Gleb Paharenko wrote:
Hello.
What transaction isolation level do you use? By the
way - there's a fresh bug related to SELECT ... FOR UPDATE:
http://bugs.mysql.com/bug.php?id=9512
tx_isolation is set to : REPEATABLE-READ (which is the default)
I've stripped everything
)
If I try to do it on the command line, it works as expected.
Can this be related to the libmysql library ? I'm using on the client
side the version that comes with 4.0.20a for windows, and the server is
a 4.1.10a (Linux).
Thanks for your help,
Philippe Poelvoorde [EMAIL PROTECTED] wrote
`
then :
drop table last;
ERROR 1051 (42S02): Unknown table 'last'
I'm a bit lost there, how can I drop this table ? (I want to recreate it
with innodb_file_per_table option afterwards)
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Gleb Paharenko wrote:
Hello.
I think that SET FOREIGN_KEY_CHECKS = 0; could help you.
Thanks, I didn't think about it. I've I dumped the DB and recreate it
instead.
Philippe Poelvoorde [EMAIL PROTECTED] wrote:
Hello,
I've got an innodb that I try to drop:
drop table markets;
ERROR 1217 (23000
really understand why the two
applications try to insert data since I've specified the FOR UPDATE in
the SELECT to lock insertion of new record. Is there anything I'm
mistaking ?
Thanks for your help,
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sguazt sguazt wrote:
Hi!
From: Philippe Poelvoorde [EMAIL PROTECTED]
Reply-To: 'mysql@lists.mysql.com ' mysql@lists.mysql.com
To: mysql@lists.mysql.com
Subject: Re: Queries inside UDF
Date: Thu, 17 Mar 2005 08:22:46 +
..
You can actually access a DB within a UDF, but you should do the same
program. Also bear in mind
that it should be thread-safe ;)
a way to extend udf, is ... stored procedure ?
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ping a particular port on a remote server,
to force it update that table). As anyone been doing something like this ?
At the moment we're just polling the whole table every 5 seconds (not a
big table less than 500 records)
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...)
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Marcin Lewandowski wrote:
Hi,
I've got webserver with php and mysql-4.0.22
There I've got large phpbb2.
That's it. phpbb2 is known to consume ressources, if I were you i
wouldn't search further... not a mysql issue afaik
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are
innoDB), all permissions seems to be fine. I don't really know where to
look for hints, any ideas ?
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Michael Stassen wrote:
Did you try perror?
~: perror 150
Error code 150: Unknown error: 150
150 = Foreign key constraint is incorrectly formed
Right, I forgot to alter one table that had a FK on this table. Thanks ;)
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Philippe Poelvoorde
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Hi,
I'm looking for an older version of the ODBC connector, the 3.51.06
version for windows, but I could not get a hand on it.
I'v been there :
http://downloads.mysql.com/archives.php?p=myodbc-3.51
but no luck at all.
Any chance someone could point me in the right direction ?
Thanks,
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::RemoveMyConnection(TMyConnection * dbConn)
{
if( dbConn )
{
dbConn-Connected = false;
delete dbConn;
dbConn = 0;
}
}
Does this mean that it will close the connection ?
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For list
-id.html
btw, what do you mean by : I managed to have my insert queries as
atomic. Because if you do : INSERT it's already suppose to be atomic.
HIMH.
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+44.(0)20.7376.2401
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help much appreciated
Graham
have a look here :
http://dev.mysql.com/doc/mysql/en/example-maximum-column-group-row.html
it should be useful for you.
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) ENGINE=InnoDB DEFAULT CHARSET=latin1 |
++-+
1 row in set (0.00 sec)
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(idx) is a bad idea. you could get the last inserted id
with the following command :
SELECT last_insert_id() from comments LIMIT 1;
the last_insert_id is available on a per connection basis.
but why are you inserting back in comments a field from comments ???
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Philippe Poelvoorde
COS Trading Ltd
comment(0 if
there is no parent, or the value you give thanks to a hidden input field
in your wiki), so you normally don't need that extra query.
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run the above query and no rows are found, the second select
will block until the first transaction has completed? Is there an
alternative way of structuring the problem that would make this
concurrently safe?
Thanks,
Phil
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a varchar(50). My guest is that it
use more disk seeks to retrieve all data needed in the index. So I would
say that's the same about mediumint/bigint.
(in all case be sure to do optimize table your_table)
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See what happens if you try it with the --quick option. This will
prevent mysqldump from writing to memory before writing to the dump file.
Hi,
yes, it seems to work so far.
Thanks for your quick reply.
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that I don't have any access to my.cnf on this environnement!)
The last table in the dump (and not dump, it stops just after the CREATE
TABLE) is not that big (less than 8Mo on disk).
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