Re: [libreoffice-users] Base Compact and Shutdown

2012-12-31 Thread Mark Stanton
Even if it existed, I would be quite surprised if such a thing is 
necessary for MySQL.

Looking through the (5.1) manual, the only references to compact 
(as a verb) as to do with dumping data and a storage structure 
option.  There is nothing (that I can see) listed for it as a 
shutdown option.

It's the difference between an embedded database file and a 
database engine.  MySQL is a database engine.  You only need to send 
it requests and get answers back from it.  Otherwise it does all its 
own housekeeping and management.  You don't tell it to compact its 
data.

Regards
Mark Stanton
One small step for mankind...



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Re: [libreoffice-users] Base Compact and Shutdown

2012-12-31 Thread Dan Lewis

On 12/31/2012 03:26 AM, Mark Stanton wrote:

Even if it existed, I would be quite surprised if such a thing is
necessary for MySQL.

Looking through the (5.1) manual, the only references to compact
(as a verb) as to do with dumping data and a storage structure
option.  There is nothing (that I can see) listed for it as a
shutdown option.

It's the difference between an embedded database file and a
database engine.  MySQL is a database engine.  You only need to send
it requests and get answers back from it.  Otherwise it does all its
own housekeeping and management.  You don't tell it to compact its
data.

Regards
Mark Stanton
One small step for mankind...compact

 From the MySQL Reference Manual 5.1:

InnoDB tables use a compact storage format. In versions of MySQL 
earlier than 5.0.3, InnoDB rows contain some redundant information, such 
as the number of columns and the length of each column, even for 
fixed-size columns. By default, tables are created in the compact format 
(ROW_FORMAT=COMPACT). If you wish to downgrade to older versions of 
MySQL, you can request the old format with ROW_FORMAT=REDUNDANT.


I also noticed that mysqldump--compact is used on the command line. 
There are some known bugs when using this to backup the database that 
are also listed in the reference manual. Personally, I would use MySQL 
Administrator for the administrative duties databases require when using 
MySQL 5.1. For MySQL 5.6 which is also available, MySQL Workbench serves 
the same purpose. (MySQL Navigator 5.6 can perform some duties such as 
create new databases and their tables.)


--Dan




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[libreoffice-users] Base Compact and Shutdown

2012-12-30 Thread Ian Whitfield

Hi All

I've been using Base for some years now and every so often, or after 
doing a lot of editing, I would shutdown the system with the SQL command


'SHUTDOWN COMPACT'

I managed last month to replace the embedded HSQL engine with MySQL 
(which is working SO MUCH better!!). I did a lot of work on the DB 
yesterday so decided I better do a compact. I entered the above 
command as always but now get an error message about my syntax!! I 
looked through the SQL Manual but did not find much. Noticed one thing 
however and tried...


MySQL_SHUTDOWN COMPACT - but it still gives me the syntax error.

Does anyone know the correct syntax for this please??

(PCLinuxOS 2012,LO 3.6.2.2  MySQL 5.1.55)

Thanks a lot

IanW
Pretoria RSA


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