幾個(gè)MySql的筆試題

時(shí)間：2020-11-25 18:18:50 筆試題目我要投稿

幾個(gè)MySql的筆試題

　　Which will be faster out of these two queries – one with OR or one with IN?

　　Where does MyISAM cache table records?

　　Which will be faster out of queries with explicit INNER JOIN and implicit one?

　　Is InnoDB faster/better than MyISAM?

　　Is CHAR faster than VARCHAR?

　　Is VARCHAR(80) faster than VARCHAR(255)?

　　Are there performance issues when joining tables from different storage engines?

幾個(gè)MySql的筆試題

　　If I change a derived table to a view, will performance increase?

　　If I see Using temporary; Using filesort” in the Extra column of EXPLAIN output, does that mean a temporary table is created on disk?

　　Is it possible to do a FULL OUTER JOIN in MySQL?

【幾個(gè)MySql的筆試題】相關(guān)文章：