MySQL system variable table_type doesn't work?


The variable table_type doesn’t work since this variable is deprecated as of MySQL 5.5.3. Use default_storage_engine instead. Following is the syntax −

SET default_storage_engine = yourTableEngine;

The table engine name may be InnoDB or MyISAM. Here, we will set engine type to MyISAM −

mysql> SET default_storage_engine=MyISAM;
Query OK, 0 rows affected (0.00 sec)

Let us create a table.

mysql> create table DemoTable
   (
   Id int NOT NULL AUTO_INCREMENT PRIMARY KEY
   );
Query OK, 0 rows affected (0.40 sec)

Now check the engine type of above table −

mysql> SHOW TABLE STATUS WHERE Name = 'DemoTable';

This will produce the following output −

+--------------+--------+---------+------------+------+----------------+-------------+------------------+--------------+-----------+----------------+---------------------+---------------------+------------+-----------------+----------+----------------+---------+
| 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 |
+--------------+--------+---------+------------+------+----------------+-------------+------------------+--------------+-----------+----------------+---------------------+---------------------+------------+-----------------+----------+----------------+---------+
| DemoTable    | MyISAM | 10      | Fixed      | 0    | 0              | 0           | 1970324836974591 | 1024         | 0        | 1               | 2019-05-01 22:15:03 | 2019-05-01 22:15:03 | NULL | utf8_unicode_ci | NULL | | |
+--------------+--------+---------+------------+------+----------------+-------------+------------------+--------------+-----------+----------------+---------------------+---------------------+------------+-----------------+----------+----------------+---------+
1 row in set (0.34 sec)

Look at the above sample output, the engine type is MyISAM.

NOTE − In MySQL version 8.0.12, the default storage is InnoDB. Here we have changed the storage engine to MyISAM for current session only.

raja
Published on 17-May-2019 18:08:42
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