I don't think any other than show full processlist. In which state query
is locked or not.
I/O related things you check at OS level.
On Thu, Sep 22, 2011 at 11:07 PM, jiangwen jiang jiangwen...@gmail.comwrote:
Hi,
Is there any performance toolds about UPDATE/INSERT querys?
I want
On Sat, Sep 10, 2011 at 01:48, Carsten Pedersen cars...@bitbybit.dk wrote:
`userTable.userid` = `userTable`.`userid`
Thank you Carsten. That was indeed the problem! Have a peaceful weekend.
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http://gibberish.co.il
http://what-is-what.com
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MySQL General Mailing List
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Any update from anybody ?
-- Forwarded message --
From: umapathi b umapath...@gmail.com
Date: Thu, Sep 8, 2011 at 4:28 AM
Subject: Re: strange mysql update ..
To: Ananda Kumar anan...@gmail.com
Cc: mysql@lists.mysql.com
Here is the o/p after the update ..
user_id
Try searching for a row that has a login_date of '-00-00 00:00:00'
- Derek
On Sep 9, 2011, at 8:52 AM, umapathi b wrote:
Any update from anybody ?
-- Forwarded message --
From: umapathi b umapath...@gmail.com
Date: Thu, Sep 8, 2011 at 4:28 AM
Subject: Re: strange
I'm trying to update on an join, but I can't find my error:
UPDATE `userTable`
SET `someField`=Jimmy Page
FROM `userTable` INNER JOIN `anotherTable`
ON `userTable.userid`=`anotherTable.userid`
WHERE `userTable.someField`=Jim Morrison
AND `anotherTable.date` NOW();
ERROR 1064 (42000): You
Now that I've got the syntax right, MySQL is complaining that a field
does not exist, which most certainly does:
mysql UPDATE
- `userTable`
- INNER JOIN `anotherTable`
- ON `userTable.userid`=`anotherTable.userid`
- SET `userTable.someField`=Jimmy Page
- WHERE
`userTable.userid` = `userTable`.`userid`
/ Carsten
On 09-09-2011 23:01, Dotan Cohen wrote:
Now that I've got the syntax right, MySQL is complaining that a field
does not exist, which most certainly does:
mysql UPDATE
- `userTable`
- INNER JOIN `anotherTable
-19 11:20:07
course_id: 1011
regulator_id: 10840
test_info:
completion_date: 2011-06-19 11:37:16
print_date: NULL
password: test1140dl
certificate_number: NULL
login: test114...@1140dl.com
I fired the update statement in a wrong way
:16
print_date: NULL
password: test1140dl
certificate_number: NULL
login: test114...@1140dl.com
I fired the update statement in a wrong way ..like this ..
update user_info set login_date='2011-08-05 04:15:05' and user_id =16078845
limit 1 ;
( I forgot to use where
Here is the o/p after the update ..
user_id: 16078845
drivers_license: TEST1140DL
login_date: 2011-06-19 11:20:07
course_id: 1011
regulator_id: 10840
test_info:
completion_date: 2011-06-19 11:37:16
print_date: NULL
I fired the update statement in a wrong way ..like this ..
update user_info set login_date='2011-08-05 04:15:05' and user_id =16078845
limit 1 ;
( I forgot to use where . instead of where I used and )
update user_info set login_date='2011-08-05 04:15:05' where user_id
=16078845 limit 1
Nice Rik!
On Thu, Sep 8, 2011 at 3:19 PM, Rik Wasmus r...@grib.nl wrote:
I fired the update statement in a wrong way ..like this ..
update user_info set login_date='2011-08-05 04:15:05' and user_id
=16078845
limit 1 ;
( I forgot to use where . instead of where I used and )
update
each and update
them
but was wondering if there is a way to do this within mysql itself? The
regexp only returns a boolean so I can't see how to use that.
Regards
Phil
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and update them
but was wondering if there is a way to do this within mysql itself? The
regexp only returns a boolean so I can't see how to use that.
Regards
Phil
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could write something in perl or php to run through each and update them
but was wondering if there is a way to do this within mysql itself? The
regexp only returns a boolean so I can't see how to use that.
Regards
Phil
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Distributed Computing stats
http://stats.free-dc.org
On Wed, 06 Oct 2010 17:48:55 -0400
kalin m ka...@el.net wrote:
Simcha Younger wrote:
executing this query didn't update the record.
why?
The two values you have here are equal:
sample data : 12862162510269684
query: where unix_time 12862162510269684
Simcha Younger wrote:
On Mon, 04 Oct 2010 16:11:08 -0400
kalin m ka...@el.net wrote:
what i'm trying to do is update the column only of one of those times
isn't yet passed. and it works. except sometimes...
like these 2 unix times:
this was in the table under unix time
On Mon, 04 Oct 2010 16:11:08 -0400
kalin m ka...@el.net wrote:
what i'm trying to do is update the column only of one of those times
isn't yet passed. and it works. except sometimes...
like these 2 unix times:
this was in the table under unix time: 12862162385941345
| 12859504483288358 |
+-+---+
what i'm trying to do is update the column only of one of those times
isn't yet passed. and it works. except sometimes...
like these 2 unix times:
this was in the table under unix time: 12862162385941345
]
Subject: update and times
hi all...
i'm doing tests with a table that gets updated based on random unix
times it contains. there is a column that has a bunch or random times
that look like:
+-+---+
| date_time | unix_time
right the unix times in the example table were just that - examples
from a few days ago...
the example with the query was a 'real one' something that happened today...
it's a 64 bit machine. the unix times are stored in a bigint column.
the times in the column and the update
Hi,
I work on MySQL 5 with PHP 5 and use Apache 2 as the webserver. I have a simple
query that searches matched row id and update the field via HTTP GET query. On
a low load it succeed update the row. But on high traffic sometimes it failed
to update some rows. No errors return by the script
On Mon, 2010-09-27 at 11:25 +0100, Willy Mularto wrote:
Hi,
I work on MySQL 5 with PHP 5 and use Apache 2 as the webserver. I have a
simple query that searches matched row id and update the field via HTTP GET
query. On a low load it succeed update the row. But on high traffic sometimes
and use Apache 2 as the webserver. I have a
simple query that searches matched row id and update the field via HTTP GET
query. On a low load it succeed update the row. But on high traffic
sometimes it failed to update some rows. No errors return by the script.
What usually cause this and how
On Fri, Sep 17, 2010 at 3:51 AM, Shawn Green (MySQL)
shawn.l.gr...@oracle.com wrote:
So if 10 rows of A match your conditions, 1 row from B match your
conditions, and 10 rows from C match your conditions, then this query
produces 10*1*10 total row combinations.
Umm. It's friday, so I may
-Original Message-
From: Shawn Green (MySQL) [mailto:shawn.l.gr...@oracle.com]
Sent: Thursday, September 16, 2010 9:51 PM
To: Jerry Schwartz
Cc: mysql@lists.mysql.com
Subject: Re: Update record count
On 9/16/2010 5:12 PM, Jerry Schwartz wrote:
I should be able to figure this out, but I'm
So I'm having a problem with an update query. I have three tables:
Table: A
Columns: acnt, name, company, email, domain
Table: AM
Columns: acnt, m_id
Table: M
Columns: m_id, name, company, email, domain
and I want to conditionally update the columns in one to values from the
other. i.e
Try using the IS NULL operator instead of !
-Travis
-Original Message-
From: Andy Wallace [mailto:awall...@ihouseweb.com]
Sent: Thursday, September 16, 2010 10:47 AM
To: mysql@lists.mysql.com
Subject: Update query problem
So I'm having a problem with an update query. I have three
I should be able to figure this out, but I'm puzzled. Here's a simplified
example:
UPDATE a JOIN b ON a.kb = b.kb JOIN c ON b.kc = c.kc
SET a.f1 = NOW(),
b.f2 = NOW()
WHERE c.f3 IN ('x', 'y', 'z')
AND b.f4 = 'yen';
It seems to me that if there are 3 rows found in `c` that match a total of 10
On 9/16/2010 5:12 PM, Jerry Schwartz wrote:
I should be able to figure this out, but I'm puzzled. Here's a simplified
example:
UPDATE a JOIN b ON a.kb = b.kb JOIN c ON b.kc = c.kc
SET a.f1 = NOW(),
b.f2 = NOW()
WHERE c.f3 IN ('x', 'y', 'z')
AND b.f4 = 'yen';
It seems to me
Hi ALL,
I wonder if possible at all to use replace() together with regex in
update statement.
I want to be able to update a field of string values and replace a
'dash' character with a space in the string.
Something like:
UPDATE table SET column = replace(column, regex '%-%', ' ') where id
In the last episode (Jul 08), Egor Shevtsov said:
I wonder if possible at all to use replace() together with regex in update
statement. I want to be able to update a field of string values and
replace a 'dash' character with a space in the string. Something like:
UPDATE table SET column
Thanks Dan,
I tested it just now. It works perfectly.
Dan Nelson wrote:
In the last episode (Jul 08), Egor Shevtsov said:
I wonder if possible at all to use replace() together with regex in update
statement. I want to be able to update a field of string values and
replace a 'dash
I have two tables, A and B. B has newer data, A has more columns.
I want to update some of the columns in A with all but one of the
columns in B. They have the same number of records -- about eight
million -- and one key column in common for matching. (That's the one
from B I don't want
, A and B. B has newer data, A has more columns.
I want to update some of the columns in A with all but one of the
columns in B. They have the same number of records -- about eight
million -- and one key column in common for matching. (That's the one
from B I don't want to update)
I get the idea
hi..
i am in need to update a column with different values in a single query
i know how to update a value of single column and single row element,
and single row multiple columns. but i dont know how to update multiple
values of a single column.
if any body know the syntax for it please help me
You mean the SET data type..?
http://dev.mysql.com/doc/refman/5.0/en/set.html
Regards,
m
-Original Message-
From: muralikrishna g [mailto:muralikrishn...@gmail.com]
Sent: Friday, February 05, 2010 10:38 AM
To: mysql@lists.mysql.com
Subject: how to update entire column with different
Hi I am in need to update a entire column elements with different values. If
any body know the syntax please help me.. Regarding this.. Thanks in advance
By
Muralikrishna
update table set column=value where condition.
value may be calculated based on other columns or whatever.
If you need to set n rows to arbitrary values, however, you'll need to issue
multiple statements.
On Fri, Feb 5, 2010 at 11:50 AM, MuraliKrishna
murali_kris...@arthaoptions.com wrote
Are you talking about data in column ou structure of table?
MuraliKrishna murali_kris...@arthaoptions.com escreveu na mensagem
news:4b6bf981.0807c00a.0cba.2...@mx.google.com...
Hi I am in need to update a entire column elements with different values.
If
any body know the syntax please help
Once you can group your rules into something reasonable you can use syntax
like this one:
UPDATE city
SET cityClass = CASE
WHEN population 1000
THEN 1
WHEN population 50
THEN 2
WHEN
Kindly draft you question clearly with scenario example, so that the
solution should be clear.
On 5 February 2010 16:20, MuraliKrishna murali_kris...@arthaoptions.comwrote:
Hi I am in need to update a entire column elements with different values.
If
any body know the syntax please help me
...@gmail.com wrote:
I have the following update procedure that update mySQL DB over the
internet between source Linux Centos (local machine on my net behind a
DMZ with real IP A.B.C.D) and target Linux fedora (web server
www.myweb.com) every day on a specific time 18:00 through a crontab on
my
,
Krishna
On Fri, Jan 22, 2010 at 12:25 PM, madunix madu...@gmail.com wrote:
I have the following update procedure that update mySQL DB over the
internet between source Linux Centos (local machine on my net behind a
DMZ with real IP A.B.C.D) and target Linux fedora (web server
www.myweb.com) every
I have the following update procedure that update mySQL DB over the
internet between source Linux Centos (local machine on my net behind a
DMZ with real IP A.B.C.D) and target Linux fedora (web server
www.myweb.com) every day on a specific time 18:00 through a crontab on
my source linux server
I think Baron was referring to a technique like this:
you sell a t-shirt, UPDATE table SET t=t-X WHERE t = X, if you get rows
affected, it's sold and ok. if not, the stock ran out before the operation. but
it's safe. see
http://dev.mysql.com/tech-resources/articles/storage-engine/part_3.html
On Fri, Jan 15, 2010 at 2:54 AM, Johan Machielse
johan.machie...@kpnplanet.nl wrote:
The problem is that multiple users can read and update the same field
simultaneously (worse case) which could lead to unpredictable problems.
There are other ways to do handle most cases. For example:
UPDATE
Hi,
I have created a query to read and update a stock item by using the FOR UPDATE
statement. According to the MySql documention only the rows that are selected
using the FOR UPDATE should be locked for other sessions, but somehow whole the
table is locked. This post gives some general
Johan,
I don't see a valid need for using FOR UPDATE here. In fact, FOR
UPDATE is the cause of many grievances, and I would advise you to
avoid it by any means possible. Among other things, it will cause
serious performance problems when your server gets busy. And as you
can see, it's hard
Hi Baron,
Thank you for your answer.
The problem is that multiple users can read and update the same field
simultaneously (worse case) which could lead to unpredictable problems.
According to the MySql online documentation
(http://dev.mysql.com/doc/refman/5.0/en/innodb-locking-reads.html
Dante,
On Tue, Dec 22, 2009 at 3:53 PM, Dante Lorenso da...@lorenso.com wrote:
All,
There was a feature of another DB that I have grown extremely accustomed to
and would like to find the equivalent in MySQL:
UPDATE mytable SET
mycolumn = mycolumn + 1
WHERE mykey = 'dante'
RETURNING
On Fri, 25 Dec 2009 15:41:40 +0800 Eva said:
Hello,
I have a table, say its stru is like:
domain ip noticed
The column noticed is an enum value (eigher 0 or 1).
When process one update ip, it will set noticed to 0.
Then process two know the status changed, it will do
2009-12-26 2:36, Don Read :
Change noticed to enum('new', 'scan', 'done') not null default 'new';
When proc two runs, it should
UPDATE noticed='scan' WHERE noticed='new'
Then repeat the scan with SELECT ... WHERE noticed='scan'
...
and finally it should UPDATE domain=whatever, ... noticed
On Sat, 26 Dec 2009 10:43:55 +0800 Eva said:
2009-12-26 2:36, Don Read :
Change noticed to enum('new', 'scan', 'done') not null default 'new';
When proc two runs, it should
UPDATE noticed='scan' WHERE noticed='new'
Then repeat the scan with SELECT ... WHERE noticed='scan
Hello,
I have a table, say its stru is like:
domain ip noticed
The column noticed is an enum value (eigher 0 or 1).
When process one update ip, it will set noticed to 0.
Then process two know the status changed, it will do something and set
noticed to 1.
What the problem I meet
All,
There was a feature of another DB that I have grown extremely accustomed to
and would like to find the equivalent in MySQL:
UPDATE mytable SET
mycolumn = mycolumn + 1
WHERE mykey = 'dante'
RETURNING mycolumn;
The magic of this statement is in the RETURNING clause. RETURNING causes
every
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
mysql select sizes, colorsShadesNumbersShort from products where ID=0;
+---+--+
| sizes
On Fri, 11 Dec 2009 04:38:01 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
Warnings: 1
do a SHOW WARNINGS
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
Look at the message, 0 rows changed
On Fri, Dec 11, 2009 at 4:48 AM, Jørn Dahl-Stamnes
sq...@dahl-stamnes.netwrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0
On Fri, Dec 11, 2009 at 4:48 AM, Jørn Dahl-Stamnes
sq...@dahl-stamnes.netwrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
Look at the message, 0 rows changed and 1 warning.
You cannot have ID=0 if ID is an index.
Are you
If ID column is primary key and auto increment as you said, it cant be equal
to zero.
You got a query which reads:
UPDATE columns WHERE false
There is no chance for any updates.
http://dev.mysql.com/doc/refman/5.0/en/update.html
Regards,
m
-Original Message-
From: Victor Subervi
On Fri, Dec 11, 2009 at 4:43 AM, cars...@bitbybit.dk wrote:
On Fri, 11 Dec 2009 04:38:01 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed
On Fri, 11 Dec 2009 10:48:59 +0100, Jørn Dahl-Stamnes
sq...@dahl-stamnes.net wrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0
On Fri, 11 Dec 2009 05:09:52 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
mysql update products set sizes=('Small', 'Large') where
SKU='prodSKU1';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
mysql show warnings
Jørn Dahl-Stamnes wrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
Look
first desc products
or try to
update products set sizes='Small' where
SKU='prodSKU1';
Best Regards!
Yang Wang
Tel.: 0769-21687397
Fax.: 0769-21685577
Email: yw...@lfm-agile.com.hk
- Original Message -
From: cars...@bitbybit.dk
To: Victor Subervi victorsube...@gmail.com
Cc: mysql
|
+-++
| 0 | 1234567890 |
+-++
1 row in set (0.00 sec)
mysql UPDATE test SET value='a' WHERE autoinc='0';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql SELECT * FROM test;
+-+---+
| autoinc | value
On Fri, Dec 11, 2009 at 5:13 AM, cars...@bitbybit.dk wrote:
On Fri, 11 Dec 2009 05:09:52 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
mysql update products set sizes=('Small', 'Large') where
SKU='prodSKU1';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1
On Fri, 11 Dec 2009 05:28:41 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
On Fri, Dec 11, 2009 at 5:13 AM, cars...@bitbybit.dk wrote:
On Fri, 11 Dec 2009 05:09:52 -0500, Victor Subervi
victorsube...@gmail.com
wrote:
mysql update products set sizes=('Small', 'Large
wrote:
mysql update products set sizes=('Small', 'Large') where
SKU='prodSKU1';
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1 Changed: 0 Warnings: 1
mysql show warnings;
+-+--++
| Level | Code
On Fri, Dec 11, 2009 at 11:19 AM, Mark Goodge m...@good-stuff.co.uk wrote:
Jørn Dahl-Stamnes wrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small', 'Large') where ID=0;
Query OK, 0 rows affected, 1 warning (0.00 sec)
Rows matched: 1
On Fri, Dec 11, 2009 at 8:43 AM, Johan De Meersman vegiv...@tuxera.bewrote:
On Fri, Dec 11, 2009 at 11:19 AM, Mark Goodge m...@good-stuff.co.uk
wrote:
Jørn Dahl-Stamnes wrote:
On Friday 11 December 2009 10:38, Victor Subervi wrote:
Hi;
mysql update products set sizes=('Small
On Fri, Dec 11, 2009 at 6:40 PM, Victor Subervi victorsube...@gmail.comwrote:
I'm lost. I set up this database originally with auto_increment and the
first value was 0. I thought that was always the case. Is there a problem
here?
Yes, that should not have happened. For autoincrement fields,
At 12:13 AM 12/6/2009, Oscar wrote:
hi all,
Someone told me that UPDATE equals DELETE old row + INSERT new row.
Anybody clarify it?
Are you talking about InnoDb or MyISAM tables.
I'm only familiar with MyISAM tables. Perhaps he was referring to an Update
that added more text to a variable
hi all,
Someone told me that UPDATE equals DELETE old row + INSERT new row.
Anybody clarify it?
thanks,
-Oscar
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dear all, a novice here
quickie regarding query syntax - is it possible to take fields values
from one column
and update the same column with new values like this: prefix_OldValue
column: one, two, three - column: prefix_one, prefix_two, ...
can this be done with one query and with on use
Something in the ilk of
update *table* set *field* = concat(prefix_, *field*) where *condition *
should do the trick.
On Mon, Oct 19, 2009 at 4:56 PM, lejeczek pelj...@yahoo.co.uk wrote:
dear all, a novice here
quickie regarding query syntax - is it possible to take fields values from
one
Dear all,
Benetl, a free ETL tool for files using postgreSQL (and now MySQL), is
out in version 3.1.
A small correction has been done to Benetl 3.1.
This is now available online.
You can freely download it at : www.benetl.net
This new version brings the support of long as date.
Benetl will
Hello All,
I'm reposting this since I didn't get much response the last time, so I'm
hoping to reach out again. My correlated update query (see below) was
running for 9 days before I killed it. Here is my original question:
I have a legacy application which was written using a compound
wrote:
Hello All,
I'm reposting this since I didn't get much response the last time, so I'm
hoping to reach out again. My correlated update query (see below) was
running for 9 days before I killed it. Here is my original question:
I have a legacy application which was written using a compound
On Sun, Sep 6, 2009 at 6:01 PM, mos mo...@fastmail.fm wrote:
So I've disabled all the keys on the item_trans table -- since I am
updating every row, it wouldn't (shouldn't) be using the index anyway.
You can't disable unique indexes or primary keys. They are always active.
You can only
) | NO | PRI | |
|
| category| char(4) | NO | PRI | |
|
| transid | int(10) | NO | PRI | |
|
Currently the seq field is null for the entire table. So of course, I
want to update
Do you know that if you create seq column on the original table as an
auto_increment primary key, it will fill in the numbers automatically? There's
no need to create the values on another table and update with a join.
Regards,
Gavin Towey
-Original Message-
From: Hank [mailto:hes
the transaction table,
leaving only the new item sequence id (plus transid) as the primary key.
There are many tables throughout the schema that do this, and I would be
replacing them all. It's just that this is the largest table, and the
correlated update is taking a long time, and I'm looking for a better
On Sat, Aug 29, 2009 at 12:09 PM, Manasi Save
manasi.s...@artificialmachines.com wrote:
Hi All,
I have a query which gives an error of lock wait timeout only this
transaction is running with 2 records in the table.
The query is :
Update Test
Set TestFlag = 1
Where TestID = 5;
Can
Hi,
You are right. The storage engine i m using is InnoDB. but then my concern
is why this simple update query takes so long. Is it true that if its
innodb table then even after specifying where condition it scans all
indexed rows. I am bit confused as mysql.com have mentioned on there site
in the table.
The query is :
Update Test
Set TestFlag = 1
Where TestID = 5;
Can this one transaction lock my entire table?
--
Thanks and Regards,
Manasi Save
Artificial Machines Pvt Ltd.
manasi.s...@artificialmachines.com
Ph:- 9833537392
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For list
Hi All,
I have a query which gives an error of lock wait timeout only this
transaction is running with 2 records in the table.
The query is :
Update Test
Set TestFlag = 1
Where TestID = 5;
Can this one transaction lock my entire table?
--
Thanks and Regards,
Manasi Save
Artificial
Hello all,
due to connection state, I need to keep an updated copy of the database on the
client.
How can I accomplish this?
TIA
Mos
Check out replication.
On Sun, Aug 23, 2009 at 09:00, m. zamil mza...@saudi.net.sa wrote:
Hello all,
due to connection state, I need to keep an updated copy of the database on
the client.
How can I accomplish this?
TIA
Mos
--
Walter Heck, Engineer @ Open Query (http://openquery.com)
Hi,
Hi, I'm a novel developer of MySql and now I am trying to create a mysql
query to detect table updates.
I query a database table every X seconds, and i want to get only the
different rows in the table. The result that I want to have is simply
TABLE (t = now) - TABLE (t = X second ago)
Hi, I'm a novel developer of MySql and now I am trying to create a mysql query
to detect table updates.
I query a database table every X seconds, and i want to get only the different
rows in the table. The result that I want to have is simply
TABLE (t = now) - TABLE (t = X second ago)
Every
[mailto:bs...@ymail.com]
Sent: Wednesday, August 05, 2009 10:30 AM
To: mysql@lists.mysql.com
Subject: How to Detect MySql table update/difference
Hi, I'm a novel developer of MySql and now I am trying to create a mysql query
to detect table updates.
I query a database table every X seconds
MySql table update/difference
I have good news and bad news for you when it comes to MySQL 5.x.
Good News if you are counting against MyISAM
Bad News if you are counting against InnoDB
Good News
-
For MyISAM
Just use either
SELECT table_rows FROM information_schema.tables WHERE
, August 05, 2009 2:57 PM
To: Rolando Edwards; mysql@lists.mysql.com
Subject: Re: How to Detect MySql table update/difference
Ok, but in this way I can only detect if it's done ONE type
of operation, for example if I add a row and I remove an
another one with this query I detect
Hi;
I would like to test the following:
update maps set map where site=mysite;
to see if there is such an entry in maps. If there is, then update. If there
is not, then I would like to execute an insert statement. How do I do that?
TIA,
Victor
from: http://dev.mysql.com/doc/refman/5.1/en/insert.html:
INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE]
[INTO] tbl_name
SET col_name={expr | DEFAULT}, ...
[ ON DUPLICATE KEY UPDATE
col_name=expr
[, col_name=expr] ... ]
The ON DUPLICATE KEY predicate tells
Hi Vicor,
Look into INSERT ON DUPLICATE or REPLACE statements. You need to
have a primary key or unique key for these too work.
On Sun, Jul 26, 2009 at 1:11 PM, Victor Subervivictorsube...@gmail.com wrote:
Hi;
I would like to test the following:
update maps set map where site=mysite
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