First, databases do not have a table type, they are mainly just a
logical grouping of tables. Mixing table types in a database is quite
alright and is what you are supposed to do. I generally use MYISAM,
but if I have a table with lots of activity (inserts, deletes,
selects) or needs transaction support, I use InnoDB.
What you did was not only switch the default table type, but you
disabled the InnoDB table type. As you may already know, MySQL's table
types are different engines that are really plug-ins. You can disable
those plug-ins if you like, which is what you did. Just re-enable the
InnoDB stuff and you should be alright. You can leave your default
engine as MYISAM and if you like, you can use ALTER TABLE to convert
your InnoDB tables to MYISAM.
--
Brent Baisley
On Aug 15, 2008, at 1:01 AM, [EMAIL PROTECTED] wrote:
Hello mysql,
As I have previously mentioned, I installed WAMPSERVER 2.0 on my
Windows XP pro box recently. It installed INNODB as the Default
Engine.
All of my legacy Databases are MYISAM and after the installation, I
copied them all into the DATA folder and everything worked, even
adding new tables etc. but the new stuff was INNODB. So I ended up
with some MYISAM databases that contained INNODB tables in them.
After a few weeks I got to thinking that mixing INNODB and MYISAM
might not be a good thing and switched the Default Engine to MYISAM in
my.ini file. I didn't just switch the default, I commented out all the
INNODB calls in the my.ini file as well.
As I half expected, all the databases that I had added INNODB tables
failed when I tried to fire up the applications that used them.
Although I am not new to mysql, I have had a bit of MYISAM "tunnel
vision" with it so my question is, if I had just switched the default
engine and NOT disabled the INNODB calls in my.ini, would that have
prevented the "problem"? I restored all the MYISAM files and got
everything back working again.
I don't want to go through the "lengthy" reproduction exercise of
reinstalling everything to test the theory so if someone has had some
experience with this, I would appreciate hearing from them.
--
Best regards,
mikesz mailto:[EMAIL PROTECTED]
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