On Wed, Jul 18, 2001 at 02:06:03PM -0700, Michael Tam wrote:
> Hi all,
>
> I am new using MySQL. I found out that the default table type used
> in the binary isn't support transaction and would like to make
> MySQL uses another table type which supports transaction. The
> following are my questions regarding the issue:
>
> 1) which one should I use InnoDB or BDB? what kind of advantages
> given by each type?
BDB tables have been around in MySQL longer. They provide page-level
locking.
InnoDB tables are newer but have row-level locking and are faster than
BDB tables.
> 2) currently, I am using the default type - MyISAM, where I am
> running MySqld-nt. If I would like to switch to another table type.
> Do I just uninstall the service of MySqld-nt from win2000 and
> install MySqld-Max service??
Hard to know. I've never installed or uninstalled MySQL on Windows.
Does the uninstall remove the data files?
> 3 what would happen to my existing MyISAM type tables which already
> exists in MySQL if I do the switch over? and would I able to
> use/create MyISAM type table uder MySqld-Max??
You can convert any MyISAM tables to InnoDB that you'd like. It's
just a matter of:
ALTER TABLE <mytable> TYPE = InnoDB;
for each one of them. Or you can use the mysql_convert_table_format
script that comes with MySQL.
Jeremy
--
Jeremy D. Zawodny, <[EMAIL PROTECTED]>
Technical Yahoo - Yahoo Finance
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