1、Which will be faster out of these two queries – one with OR or one with IN?
2、Where does MyISAM cache table records?
3、Which will be faster out of queries with explicit INNER JOIN and implicit one?
4、Is InnoDB faster/better than MyISAM?
5、Is CHAR faster than VARCHAR?
7、Are there performance issues when joining tables from different storage engines?
8、If I change a derived table to a view, will performance increase?
9、If I see Using temporary; Using filesort” in the Extra column of EXPLAIN output, does that mean a temporary table is created on disk?
10、Is it possible to do a FULL OUTER JOIN in MySQL?