I'm seeing some very odd locking behaviour on 4.1.13:
mysql> show full processlist;
++--++--+-+--++---
Hello,
I need to be able to sum over distinct values but I can't seem to do it
unless I use sub-selects (which I want to avoid doing).
To see what I mean, I've constructed a toy DB:
DROP TABLE IF EXISTS spell;
CREATE TABLE spell (
id INT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY,
power F
This table holds latest data from an app:
mysql> select * from ultimas_respuestas_snmp limit 10;
+++---+-+---++--+
| id | info_oficina | columna_donde_guardar | info_interfaz |
valorSNMP | nom
--apologies if you receive this email from another account--
hi,
i exported a *.sql using phpMyAdmin on a system running:
mysql Ver 14.12 Distrib 5.0.19, for pc-linux-gnu (i486) using
readline 5.1
i'm trying to import it from this localhost to a remote host
running:
Thankyou for your reply Dilipkumar. Much appreciated.
Regards
Keith
On Tue, 4 Apr 2006, Dilipkumar wrote:
> To: [EMAIL PROTECTED]
> From: Dilipkumar <[EMAIL PROTECTED]>
> Subject: Re: Undelete rows with .MYD-File?
>
> Hi,
>
> If it is a busry server you cannot copy MYD & FRM file * MYI files
On 2006-01-20, at 01:13, Tucker Cunningham wrote:
So, my question is: what are the pros and cons of using varchar
vs. text/longtext? Right now, longtext seems to be the best option
(it provides most flexibility in data that can be stored, at only a
2-byte-per-row storage premium) There
As my server does not get alot of traffic I tend to shutdown
mysql, and do an OS copy of the complete /var/lib/mysql
directory to another partition on another drive. Then
restart mysql again.
This may not be a feasable option on a busy server.
Obviously each person has their way of doing back
if I have to put in one line, then just taka a copy (zip, gzip, tar or
whatever) of your old mysql data directory, like /usr/local/mysql/data, and
then restore it into your new data directory under 4.1.x, and this should be
fine assuming you have taken care of other things, also please refer to the
Dear Sir,
I have 8 mb total SQL database, i'm currently using mysql version:
4.1.11-debian.
Our database uses latin5 character set and collate: latin5_turkish_ci
And now... how can i restore this database without problem; previous mysql
version?
previous mysql version is: 4.0.25-standart
Markus Fischer wrote:
Basically, this means if I've a table like this
id1
id2
id3
id4
id5
and I've two different select statements:
select * from ... where id1 = .. and id2 = ..
and the other being
select * from ... where id3 = .. and id4 = ..
I would create two indexes, one for id1/id2 and
The solution is to redesign your tables. You need to split into separate
columns the values you want to maintain. You do not want to keep the "flat
file" design you are currently trying to use.
CREATE TABLE calendar (
objectid,
year,
dayofyear,
... other fields...
)
CREATE TABLE price
karsites:/var/swissmade # ./myisamchk -dvv shop_item.MYI
MyISAM file: shop_item.MYI
Record format: Packed
Character set: latin1_swedish_ci (8)
File-version:1
Creation time: 2006-03-31 13:59:48
Status: open,changed
Auto increment key: 1
Last value: 67
You might want to change those. I'm guessing your wait_timeout is set
to the default of a day. Is the application letting go of
connections? If you do a SHOW PROCESSLIST on the server, is there
really only one connection, or are there many?
-Sheeri
On 4/3/06, [EMAIL PROTECTED] <[EMAIL PROTECTE
There is no logical difference. There's a tiny bit of overhead in
preparing and executing the statements, but if you have a query where
the limit is variable, a prepared statement might be better than
coding within an application, because then when ANY user or
application connects it can use that
in port forwarding , all you are saying is !!ok, if server1 gets any
connection on port 3307 then forward that connection to port 3306 on
server2, so essentially the connection on server2 for Mysql is coming from
the client on server1 , so the user you are using to connect to server2 from
server1
So what you are doing here is sending some sql statements from the dump to
mysql CLI, so all that in going into the pipe is just plain text output from
the dump, it does pass in any auth parameters, so for your script to run
just add the required user, pwd etc as arguments to the mysql cli utility,
I am not sure if you can do this from the Mysql CLI, but a better way of
doing this would be to use an external script like PHP, PERL, BASH,
etc as they have a better way of error checking againest Mysql.
Kishore Jalleda
http://kjalleda.googlepages.com/projects
On 4/3/06, C.R.Vegelin <[EMAIL PROT
IIRC there may be a hidden field in each table row that
mysql uses to mark that row as deleted.
I'm not sure if you can use some mysql utility program such
as myisamchk to undelete the rows.
This may be possible.
Regards
Keith
In theory, theory and practice are the same;
in practice they ar
I have downloaded the table files and this is what I get:
mysql> use swissmade;
Database changed
mysql> show tables;
+-+
| Tables_in_swissmade |
+-+
| shop_item |
+-+
1 row in set (0.00 sec)
mysql> select * from shop_item \G
E
Hi everyone,
I use many scripts that are started from the CLI (MySQL 5.0.15).
And if errors occur, I want to quit a script. I looked at:
http://dev.mysql.com/doc/refman/5.0/en/show-errors.html
and found Show Count(*) Errors; and for Select @@error_count;
But how to quit a CLI script, if @@error_co
If those three files were backed up some where before you
dropped the table all you need to do is to copy them back
into the data dir, and things should be ok again.
Keith
In theory, theory and practice are the same;
in practice they are not.
On Mon, 3 Apr 2006, Nico Schefer wrote:
> To: mysq
Hi!
Today i've dropped a MySQL-table and realized seconds later that i've
dropped the wrong one.. I've saved the .MYD-File and tried to recover it
with a tool (MySQLRecovery 1.5), but it just recovered the structure and
not the data (about 620 rows).
I've searched now all the day and not found
>Create table events (
>uid BIGINT NOT NULL AUTO_INCREMENT,
>name VARCHAR(255),
>start_date DATE,
>duration INTEGER,
>location_id BIGINT,
>primary key (uid)
>);
>
>Create table locations (
>uid BIGINT NOT NULL AUTO_INCREMENT,
>name VARCHAR(255),
>address VARCHAR(255),
>primary key (uid)
>)
>
>Alter
> Bing Du wrote:
>
>>Hello everyone,
>>
>>What I'm after is trying to figure out a way to centrally and remotely
>>managing (e.g. on server1) our MySQL servers (server2 is an example) on
>>different machines. Right now, these MySQL servers are all set up to
>> only
>>accept logons from localhost.
I ran into some syntax over the weekend, that I am trying to make sense
of. Here is the create table statements.
Drop table if exists events
Drop table if exists locations
Create table events (
uid BIGINT NOT NULL AUTO_INCREMENT,
name VARCHAR(255),
start_date DATE,
duration INTEGER,
what is the difference between this:
SET @a=1; PREPARE STMT FROM 'SELECT * FROM tbl LIMIT ?';EXECUTE STMT USING
@a;
and this:
'SELECT * FROM tbl LIMIT 1
And then this:
SET @skip=1; SET @numrows=5;
PREPARE STMT FROM 'SELECT * FROM tbl LIMIT ?, ?';
EXECUTE STMT USING @skip, @numrows;
and this:
'
First of all... yes... in MySQL variables are declared and used with @
Now for the ":" ... there is no particular role... they're there because
otherwise the SQL parser will be confused...
*SELECT column1, @neededValue=column2 FROM table_name LIMIT 1*
*SELECT column1, @neededValue:=column2 FROM t
Hi Yemi,
It means the variable contains only positive values - otherwise one
bit would be used to denote whether it's positive or negative. From
the documentation:
SMALLINT[(M)] [UNSIGNED] [ZEROFILL]
A small integer. The signed range is -32768 to 32767. The unsigned
range is 0 to 65535.
Jos
On
What does it mean declaring a table unsigned?
An example is a s below:
id smallint unsigned not null auto_increment
Got the snippet from the mysql website:
select @last := last_insert_id()
i av the hunch that is to assign the variable 'last' to the
last_insert_id(). Im i right? is placing @ before a word mysql's way of
declaring variables? what's the work of the colon preceeding the equal sign?
--
http://ngB
Jorrit Kronjee wrote:
On 3/29/2006 2:10 PM, Jorrit Kronjee wrote
Mark,
Apparently so, thanks for the hint! We'll try to upgrade as soon as
possible.
I'll supply the mailing list with the results of the upgrade.
Mark,
We've been testing it over the weekend and it seems that the bugs
Thanks,
Table corruption is exactly what I fear as a result of this problem. As long as
things semm to work again now after the hister cleaned some temp files, how do
I check my db for possible table corruptions?
Selon prathima rao <[EMAIL PROTECTED]>:
> if u have shut down the system then the
Oops forgot to include the list
- Message transféré de Jacques Brignon <[EMAIL PROTECTED]> -
Date : Mon, 03 Apr 2006 10:07:58 +0200
De : Jacques Brignon <[EMAIL PROTECTED]>
Adresse de retour :Jacques Brignon <[EMAIL PROTECTED]>
Sujet : Re: error 28 from table handler
À :
On 3/29/2006 2:10 PM, Jorrit Kronjee wrote:
>> It seems you are running in to Bug #7209:
>>
>> http://bugs.mysql.com/bug.php?id=7209
>>
>> This is fixed in 5.0.19 now.
>>
>> Best regards
>>
>> Mark
>>
>
> Mark,
>
> Apparently so, thanks for the hint! We'll try to upgrade as soon as
> possible.
>
Quoting Jacques Brignon ([EMAIL PROTECTED]):
> "1030 : Got error 28 from table handler"
% perror 28
OS error code 28: No space left on device
> Any idea of what might cause that, and what should be done to correct
> this situation?
Aparently the disk that stores your MySQL datadirectory is fu
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] writes:
>> Keith,
>> Your method won't guarantee that there are no rows where the combination
>> of the values in those four columns fails to repeat in any other row. To
>> do that would require an EXTRA four-column unique index of type UNIQUE.
On Mon, 3 Apr 2006 [EMAIL PROTECTED] wrote:
> To: [EMAIL PROTECTED]
> From: [EMAIL PROTECTED]
> Subject: Re: stunningly slow query
>
> [EMAIL PROTECTED] wrote on 04/02/2006 05:35:59 PM:
>
>
> > > > Can you post your show create table tbl_name statement for
> > > > these tables that involve sl
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