Disadvantages of Creating Many Tables in the Same Database
by satheeshkumar[ Edit ] 2012-09-19 22:59:32
Disadvantages of Creating Many Tables in the Same Database ,
->If you have many MyISAM tables in the same database directory, open, close, and create operations are slow.
->If you execute SELECT statements on many different tables, there is a little overhead when the table cache is full, because for every table that has to be opened, another must be closed.
->You can reduce this overhead by increasing the number of entries permitted in the table cache.