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法律研究如何顯示 MySQL 表的引擎？
瞭解 MySQL 表是否使用 MyISAM 或 InnoDB 引擎，可以使用以下語法。
以下語法可用於多張表 −
show table status from yourDatabaseName;
這是一個可以用於特定表（即瞭解表引擎）的語法 −
show table status from yourDatabaseName Like ‘yourTableName’.
以下是要顯示所有表引擎的查詢 −
mysql> show table status from sampleTest;
這是輸出 −
+--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ | Name | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time | Update_time | Check_time | Collation | Checksum | Create_options | Comment | +--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ | datetimedemo | InnoDB | 10 | Dynamic | 0 | 0 | 16384 | 0 | 0 | 0 | NULL | 2018-12-05 09:22:54 | NULL | NULL | utf8mb4_0900_ai_ci | NULL | | | | primarydemo | InnoDB | 10 | Dynamic | 0 | 0 | 16384 | 0 | 0 | 0 | NULL | 2018-12-05 09:23:34 | NULL | NULL | utf8mb4_0900_ai_ci | NULL | | | | student | MyISAM | 10 | Dynamic | 0 | 0 | | 281474976710655 | 1024 | 0 | 1 | 2018-12-05 09:22:22 | 2018-12-05 09:22:23 | NULL | utf8mb4_0900_ai_ci | NULL | | | +--------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ 3 rows in set (0.19 sec)
以下是要顯示特定表的引擎型別的查詢 −
mysql> show table status from sampletest Like 'student';
這是顯示僅“student”表的引擎的輸出 −
+---------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ | Name | Engine | Version | Row_format | Rows | Avg_row_length | Data_length | Max_data_length | Index_length | Data_free | Auto_increment | Create_time | Update_time | Check_time | Collation | Checksum | Create_options | Comment | +---------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ | student | MyISAM | 10 | Dynamic | 0 | 0 | 0 | 281474976710655 | 1024 | 0 | 1 | 2018-12-05 09:22:22 | 2018-12-05 09:22:23 | NULL | utf8mb4_0900_ai_ci | NULL | | | +---------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+---------------------+------------+--------------------+----------+----------------+---------+ 1 row in set (0.00 sec)
更新於： 25-6-2020
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