What table type I shall use?

[Oombongo]

Hello,

I am working on the database that will have 5+ tables.
These tables will be accessed for data entry, data modification, data searching and so on. Also these tables will be accessed by more than one users at a time.
The data is of very cruical nature.

I am wondering that what table type I shall be using for my database. I am using PHPMyAdmin. I have these choices:

MyISAM
HEAP (which is not for such database)
MEMORY
MERGE
MRG:MyISAM
InnoDB
INNOBASE

Thanks in advance


The second thing that bugs me is that: Is it possible if two users are entering/modifying data at the same time in the same table, they can mess up with the data? I am using SESSIONS that consists of username, IP and time in millisecond.

[chazzy]

The only two engines that are recommended for any use are MyISAM and InnoDB. Their other forms are watered down to give back some speed but not really useful.

A table should be MyISAM if it needs to take advantage of full text search, or is mostly for querying (maybe data dumping?). Mostly for static tables w/ mass data loads.

InnoDB is more of a transactional engine, with its row level locking it has faster INSERT/UPDATE/DELETE statements and tables that are heavily modified should take advantage of it.

[Oombongo]

Thanks chazzy for the reply (and sorry for my late response as I was away from the city).

I guess that I will go for the INNODB as it seems to suit my requirements