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  • 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?

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