Under MSSQL there's a stored procedure called sp_lock which can be used.
Is there an equivalent one in mySQL?
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Hello,
currently i have the following table structure
CREATE TABLE users (
uname varchar(20) NOT NULL default '',
passwd varchar(15) NOT NULL default '',
fname varchar(25) NOT NULL default '',
lname varchar(40) NOT NULL default '',
dir varchar(28) NOT NULL default '',
pict varchar(50) NOT N
On 11/1/06, mos wrote:
At 02:27 PM 11/1/2006, Jochem van Dieten wrote:
What is the big deal of a TB? Now, if you get past 20 TB you might
want to team up with one of the commercial PostgreSQL supporters
(Fujitsu, EnterpriseDB, Greenplum etc.), but Sun even sells appliances
for 100 TB PostgreSQL
Try:
Update myTable set myField = concat(myField,' new data to add') where
myField = 'some restrictions';
Regards!
> -Mensaje original-
> De: Rich [mailto:[EMAIL PROTECTED]
> Enviado el: Miércoles, 01 de Noviembre de 2006 06:35 p.m.
> Para: Submit MySQL
> Asunto: Update field concact
Hi folks. Boy do I have an interesting one for you today. This list
is great.
Can I update a record using a typical update query, and have a field
be updated to:
previous value of the field + (something I want added to the end)
so field 'flavours' starts out as: "vanilla chocolate"
...t
Keith Spiller wrote:
Hi Rolando,
Thanks for your help.
I have reduced the query to the bare essensials to try to test the
concept, but
it still fails...
( SELECT ID, Start, End
( SELECT ID, Start, End as z
FROM site_calendar_v2 as c
WHERE Global='1' )
UNION
( SELECT '9', '2006-11-01',
At 02:27 PM 11/1/2006, Jochem van Dieten wrote:
On 11/1/06, mos wrote:
Sure, I've thought of those too. But has anyone gotten Firebird to
store 700-800gb tables? Can you split Firebird's .gdb file across drives?
The main problem with tables of that size is maintaining the index. My
upp
Hi Rolando,
Thanks for your help.
I have reduced the query to the bare essensials to try to test the concept,
but
it still fails...
( SELECT ID, Start, End
FROM site_calendar_v2 as c
WHERE Global='1' )
UNION
( SELECT '9', '2006-11-01', '-00-00' as z )
ORDER BY z, Start ASC, Status DES
The first UNION part has 19 columns
the other UNION part has 18 columns
- Original Message -
From: Keith Spiller <[EMAIL PROTECTED]>
To: [MySQL]
Sent: Wednesday, November 1, 2006 3:31:24 PM GMT-0500 US/Eastern
Subject: Manually Inserted Data
Hi,
I'm trying to manually insert data into a
Hi,
I'm trying to manually insert data into a mysql query so that the
data will be sorted by the query but not inserted into the table.
Here's what I have so far:
( SELECT ID, Title, Label, Location, Start, End, Time,
Description, Organization, Department, Contact, Phone,
Email, Global, Board
On 11/1/06, mos wrote:
Sure, I've thought of those too. But has anyone gotten Firebird to
store 700-800gb tables? Can you split Firebird's .gdb file across drives?
The main problem with tables of that size is maintaining the index. My
upper limit for MySQL is 100 million rows. After tha
This is how I'd do it, though ISTR there being a problem with LIMITs
in subqueries at one point (works for me on 5.0.24). (I changed to
user and user_entitlements because I have those tables I can use in my
database)
SELECT u.id, COUNT(*) AS ct
FROM users u, user_entitlements ue
WHERE u.id = ue.
Thanks, Dan, that does indeed work; but as you said it only gives one
record. Removing the limit gives them all to me, which for visual inspection
works fine.
This started out as a "Gee, I wonder..." task, so as a learning experience
I'd like to figure out how to get all of (and only) the records
Ross -
In your query you can add a "LIMIT" clause to get just one row in the
result, a la:
SELECT * FROM thumbnails where gallery=$id LIMIT 1
If you want the "first" image, say the one with lowest ID number, you
could do this:
SELECT * FROM thumbnails where gallery=$id ORDER BY id LIMIT 1
Dan
I have atable which contains the number and name of the photo galleries and
'thumnails' the images that are conenected to the galleries.
I am trying to create a 'pick a gallery' screen where it selects all the
galleries and then output the first thumbnail image associated with that
gallery.
I have two tables galleries which contains the number and name of the photo
galleries and 'thumnails' the images that are conenected to the galleries.
I am trying to create a 'pick a gallery' screen where it selects all the
galleries and then output the first thumbnail image associated with t
disclaimer: i know nothing about java or jdbc. a co-worker is trying to
access a database i've set up using jdbc. he says that my enum column
is always returning an integer value instead of the string. obviously
this is less than desirable.
does anybody have any advice i could give him on w
At 09:35 AM 11/1/2006, Martijn Tonies wrote:
>> > MyISAM vs InnoDB ? What is the best to use
>>
>> Always use a DBMS, and MySQL is no (proper) DBMS without a
>> transactional
>>backend. There are InnoDB, which is not completely free (needs a
proprietary
>>backup tool); BDB, which is depr
> got a Really Simple question, which is probably really easy, but it's
> just not starign me in the face.
>
> Is there any "query" in MYSQL (or function in PHP that works with MYSQL)
> to remove a value from a field when a new week comes across, or to
> remove something from a field on a defi
Hi,
got a Really Simple question, which is probably really easy, but it's
just not starign me in the face.
Is there any "query" in MYSQL (or function in PHP that works with MYSQL)
to remove a value from a field when a new week comes across, or to
remove something from a field on a defined da
Hi,
In my honest opinion, uploading the image to a "preset" directory in the
code, and setting the code to submit the image name, extension, and if
needs be (it shouldnt, because you can set it in the HTML), the
directory. Google has a lot of useful resources on this.
But, if you are really
Great,
Thank you for your help Rolando,
Mikhail Berman
-Original Message-
From: Rolando Edwards [mailto:[EMAIL PROTECTED]
Sent: Wednesday, November 01, 2006 11:41 AM
Cc: mysql@lists.mysql.com; Mikhail Berman
Subject: Re: MyISAM to InnoDB conversion help
I just noticed your innodb_da
I just noticed your innodb_data_file_path
You have a shared InnoDB tablespace
That can be murder on a MySQL Server
You may want to separate each InnoDB into a separate file
Here are the steps needed to separate InnoDB tables.
1) Do a mysqldump on your database to mydata.sql.
2) Shutdown MySQL
3)
Check these variable
bulk_insert_buffer_size (Default usually 8M)
innodb_buffer_pool_size (Default usually 8M)
- Original Message -
From: Mikhail Berman <[EMAIL PROTECTED]>
To: Rolando Edwards <[EMAIL PROTECTED]>
Cc: mysql@lists.mysql.com
Sent: Wednesday, November 1, 2006 11:13:44 AM GMT
Francis wrote:
Question about MyISAM vs InnoDB ? What is the best to use, I have
a large table contain around 10 millons of records. What is the best
for me ? Use MyISAM or InnoDB ?
Depends VERY much on your application. If any concurrency and/or
durability is required then I would
Francis wrote:
Question about MyISAM vs InnoDB ? What is the best to use, I have
a large table contain around 10 millons of records. What is the best
for me ? Use MyISAM or InnoDB ?
Depends VERY much on your application. If any concurrency and/or
durability is required then I would
Hi Rolando,
Thank you for your help.
I am on MySQL 5, and I have tried to do the conversion using ALTER TABLE
command. With the same very slow result.
Do you by any chance have specific suggestions how to tweak variables
related to this?
Here is what I got:
+-
If you are do this in MySQL 5, try this:
ALTER TABLE ENGINE = InnoDB;
That's all.
Let MySQL worry about conversion.
You may also want to tweek the innodb
system variables (show variables like 'innodb%)
for better InnoDB performance prior to trying this.
- Original Message -
From: Mikha
>> > MyISAM vs InnoDB ? What is the best to use
>>
>> Always use a DBMS, and MySQL is no (proper) DBMS without a
>> transactional
>>backend. There are InnoDB, which is not completely free (needs a
proprietary
>>backup tool); BDB, which is deprecated until further notices; and SolidDB,
>>wh
At 05:56 AM 11/1/2006, Leandro Guimarães Faria Corcete DUTRA wrote:
Em Tue, 31 Oct 2006 15:24:44 -0500, Francis escreveu:
> MyISAM vs InnoDB ? What is the best to use
Always use a DBMS, and MySQL is no (proper) DBMS without a
transactional
backend. There are InnoDB, which is not com
Hi everyone,
I am hoping to get help with extremely slow performance of MyISAM to
InnoDB conversion. Or find out if this type of performance is usual
I have MyISAM table that contains - 3,299,509 rows and I am trying to
convert it to InnoDB for the use with row-level locking, and I am
getting i
Hi,
What been said below is true, I also think you should probably use Merge
table on subsequent table.
While 2G won't be enough for holding the full index for sure, splitting
the table could allow you to have much smaller index and be able to hold
that one in memory. Also if you use dynamic size
Cabbar -
That much data is possible in MySQL; I've seen references to terabyte
databases in the past. 700-800 GB in a single table appears to be
possible but I wouldn't really recommend it. A couple of suggestions,
based on my own reading (I've not worked with such large dbs in MySQL
myself, on
On Nov 1, 2006, at 12:56 PM, Leandro Guimarães Faria Corcete DUTRA
wrote:
Em Tue, 31 Oct 2006 15:24:44 -0500, Francis escreveu:
MyISAM vs InnoDB ? What is the best to use
Always use a DBMS, and MySQL is no (proper) DBMS without a
transactional
backend. There are InnoDB, which is not co
Miles Thompson <[EMAIL PROTECTED]> wrote:
> At 07:56 AM 11/1/2006, Leandro Guimarães Faria Corcete DUTRA wrote:
> > .. further notices; and SolidDB, which
> >is still β.
>
> Help this poor English-speaker - what's the symbol you use to describe
> SolidDB?
I assume it is a "beta" character, sin
At 07:56 AM 11/1/2006, Leandro Guimarães Faria Corcete DUTRA wrote:
.. further notices; and SolidDB, which
is still β.
Choose your evil.
--
Leandro Guimarães Faria Corcete DUTRA +55 (11) 9406 7191 (cel)
Administrador de (Bases de) Dados +55 (11) 2122 0302 (com)
http://b
Em Tue, 31 Oct 2006 15:24:44 -0500, Francis escreveu:
> MyISAM vs InnoDB ? What is the best to use
Always use a DBMS, and MySQL is no (proper) DBMS without a transactional
backend. There are InnoDB, which is not completely free (needs a proprietary
backup tool); BDB, which is deprecated
Hi,
We have huge amount of data, and we are planning to use logical
partitioning to divide it over multiple machines/mysql instances. We
are planning to use Intel based machines and will prefer ISAM since
there is not much updates but mostly selects. The main table that
constitutes this much of d
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