Re: MySQL 5.0.51a and SHOW ENGINES

2008-04-17 Thread Martijn Tonies
Hello Jim,

   sounds like you are using the wrong value for the length of a utf8
   field, where the number of characters is being divided by the max
   character length. (10 / 3 = 3, 80 / 3 = 26)
  
   or it could be the server returning the wrong length. use mysql
   --column-type-info to see what it is returning.
  
  That doesn't work with 5.0 as far as I can tell.
 
 sorry, i think --column-type-info is new in 5.1. you can get the same
 effect using -T with 5.0, i believe.

Thanks for the suggestion but the issue has been fixed for me.

I reported it to the vendor that created the Delphi component-set to
use MySQL and they supplied me with a fix. Apparently, something
has changed between 5.0.45 and 5.0.51 that made their code fail,
but it's all good now.

Martijn Tonies
Database Workbench - development tool for MySQL, and more!
Upscene Productions
http://www.upscene.com
My thoughts:
http://blog.upscene.com/martijn/
Database development questions? Check the forum!
http://www.databasedevelopmentforum.com

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[ANN]: MicroOLAP DAC for MySQL 2.6.2 released

2008-04-17 Thread Mikhail Oleynik
Greetings,

Microolap Technologies is happy to announce that the version 2.6.2 of
MicroOLAP DAC for MySQL is available.

This release brings several optimizations and bugfixes.
TmySQLUpdateSQL component supports BLOB parameters now, so it can be
used with Image, Memo and RichText DB controls.

 Full changelog:
http://microolap.com/products/connectivity/mysqldac/news/

 Product page:
http://microolap.com/products/connectivity/mysqldac/

 Downloads:
http://microolap.com/products/connectivity/mysqldac/download/

If you have any questions or require further assistance, please do not
hesitate to create a support ticket at http://microolap.com/support/


Have a nice day,

-- 
Mikhail Oleynik
MicroOLAP Technologies
[EMAIL PROTECTED]
http://microolap.com


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viewing passwords as root

2008-04-17 Thread Pam Astor

Hi,

Is there a way to view mysql user passwords once logged in as the MySQL root 
user in v 5.0.22?  Or are they encrypted even from the MySQL toot user?

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Can't get a login shell for some databases

2008-04-17 Thread Pam Astor





 




Hi,



 I have about a half dozen small databases associated with a
couple of small shopping carts, discussion forums, etc. All six databases have 
usernames and
passwords associated with them, and all the databases are connected to the php
based forums and shopping carts, no problems with the php applications reading
and writing data to them.



 I set the databases up a few weeks ago, the first one I set
up, I can’t remember exactly how I set it up.



 Here is what I don’t understand.  I’m able to login as root, and also the very
first database I set up, I am able to log in to MySQL via shell using the
username and password associated with that user.  However for all the other 
databases, I am not
able to log in to a MySQL  shell using the other usernames associated with their
databases – even though the php applications are configured to use the
usernames, passwords and database names for those users which I can not log in 
to
get a shell MySQL session.



 How is it that my php applications can log in to MySQL and I can’t get a 
terminal connection to them?  I’m sure it’s something about granting a
login shell but how would I do that?

 


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Re: viewing passwords as root

2008-04-17 Thread Paul DuBois

At 12:49 PM -0400 4/17/08, Pam Astor wrote:

Hi,

Is there a way to view mysql user passwords once logged in as the 
MySQL root user in v 5.0.22?  Or are they encrypted even from the 
MySQL toot user?


It's one-way encryption. You cannot see them.

http://dev.mysql.com/doc/refman/5.0/en/encryption-functions.html#function_password
--
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Madison, Wisconsin, USA
MySQL AB, www.mysql.com

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database design

2008-04-17 Thread Hiep Nguyen

hi all,

after a little 'research' and consultation with friends, i come up with 
these tables for my database project.


table Item(ItemID,warehouse,ShapeID,weight,category,description)
table Shape(ShapeID,physical shape)
table Dimension(DimensionID,dimension)
table ShapeDimension(ShapeDimensionID,ShapeID,DimensionID)
table ItemShapeDimension(ItemID,ShapeDimensionID,value)

ItemID,ShapeID,DimensionID, and ShapeDimensionID are primary keys, auto 
increment


Shape  Dimension are static tables

Shape: Round, Hex, Angle, Channel, Pipe,..etc.
Dimension: Diameter, Length, Width, Depth, Inner Diameter, Outer 
Diameter...etc.


do you have any comment for this??? is there any potential structure 
problem with these relationship?


thanks

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Re: Query OK in localhost, error on ISP server

2008-04-17 Thread contiw

Complementing the post above:

I have found that SUM(DISTINCT xxx) is valid with v.5x, not so in v.4x.
While I am trying to convince my ISP to switch the database to a v.5x
server, I would like some help with a workaround - please excuse my
newbness. I have tried :

(select sum(#variables.tableprefix#threads.views) from
#variables.tableprefix#threads where
#variables.tableprefix#threads.forumidfk = #variables.tableprefix#forums.id)
as views, 

instead of :
sum(distinct #variables.tableprefix#threads.views) as views, 

but it returns a zero flat instead of, say, 8, (5+3).

Thank You.

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Re: Query OK in localhost, error on ISP server

2008-04-17 Thread contiw

Complementing the post above:

I have found that SUM(DISTINCT xxx) is valid with v.5x, not so in v.4x.
While I am trying to convince my ISP to switch the database to a v.5x
server, I would like some help with a workaround - please excuse my
newbness. I have tried :

(select sum(#variables.tableprefix#threads.views) from
#variables.tableprefix#threads where
t#variables.tableprefix#hreads.forumidfk = #variables.tableprefix#forums.id)
as views, 

instead of :
sum(distinct #variables.tableprefix#threads.views) as views, 

but it returns a zero flat instead of, say, 8, (5+3).

Thank You.
Walter conti 






contiw wrote:
 
 The following query run flawlessly in localhost but produces error on ISP
 server:
 You have an error in your SQL syntax; check the manual that corresponds to
 your MySQL server version for the right syntax to use near 'distinct
 sf_threads.views) as views, ((count(distinct sf_messages.' at line 6
 
 The actual behaviour here:
 http://eduforums.us or
 http://wconti.com/schoolsforums/index.cfm
 
 I am using the exact same database both in local and server.
 Running MySQL 5 in localhost and supposedly versions 4 and 5 sopported by
 the ISP server.
 
 Thanks for helping
 
 
 
 SELECT 
 #variables.tableprefix#conferences.id,
 #variables.tableprefix#conferences.name,
 count(distinct #variables.tableprefix#forums.id)-1 as schools, 
 count(distinct #variables.tableprefix#threads.id) as topics,
 count(distinct #variables.tableprefix#messages.id) as msgs,
 sum(distinct #variables.tableprefix#threads.views) as views,
 ((count(distinct #variables.tableprefix#messages.id) *2) +sum(distinct
 #variables.tableprefix#threads.views) ) as activity,
 0 as hBarLength
 FROM ((#variables.tableprefix#conferences 
 left JOIN #variables.tableprefix#forums ON
 #variables.tableprefix#conferences.id =
 #variables.tableprefix#forums.conferenceidfk) 
 left JOIN #variables.tableprefix#threads ON
 #variables.tableprefix#forums.id =
 #variables.tableprefix#threads.forumidfk and
 #variables.tableprefix#threads.author  'admin')
 left JOIN #variables.tableprefix#messages ON
 #variables.tableprefix#threads.id =
 #variables.tableprefix#messages.threadidfk and
 #variables.tableprefix#messages.author  'admin'
 GROUP BY #variables.tableprefix#conferences.id
 
 

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A SQL Query Question

2008-04-17 Thread samk
See Thread at: http://www.techienuggets.com/Detail?tx=32975 Posted on behalf of 
a User

Hello everyone,

I have a table A:

userId long
picture MeduimBlob
datePosted DateTime

A userId can have many pictures posted. I want to write a query that returns a 
distinct userId along with the most recent picture posted. Can someone suggest 
an elegant and fast query to accomplish this?

Thanks

Adam



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Re: A SQL Query Question

2008-04-17 Thread samk
See Thread at: http://www.techienuggets.com/Detail?tx=32975 Posted on behalf of 
a User

select userId, picture, MAX(datePosted) from A order by datePosted;





In Response To: 

Hello everyone,

I have a table A:

userId long
picture MeduimBlob
datePosted DateTime

A userId can have many pictures posted. I want to write a query that returns a 
distinct userId along with the most recent picture posted. Can someone suggest 
an elegant and fast query to accomplish this?

Thanks

Adam

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optimize mysql table's physical storage

2008-04-17 Thread tech user
Hello,

My mysql table has been created for long time, it increases day by day,
and become huge.
Right now a full scan to the table for the first time is very slow.
So I was thinking to optimize it.
This table is stored in many non-sequential disk fragments I think.
I want to make this table to be stored in disk with the sequential
fragments.That will increase the scan speed.
Is there any tool to do it? Thanks in advance.

--ken


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