如何创建带有 InnoDB 引擎的 MySQL 表?

mysqlmysqli database更新于 2024/12/28 17:48:17

要创建带有 InnoDB 引擎的表,我们可以使用 ENGINE 命令。以下是创建表的查询。

mysql> create table EmployeeRecords
- > (
- > EmpId int,
- > EmpName varchar(100),
- > EmpAge int,
- > EmpSalary float
- > )ENGINE=INNODB;
Query OK, 0 rows affected (0.46 sec)

我们已将 ENGINE 设置为上面的 INNODB。

使用 DESC 命令检查有关表的完整描述。

mysql> DESC EmployeeRecords;

以下是输出。

+-----------+--------------+------+-----+---------+-------+
| Field     | Type         | Null | Key | Default | Extra |
+-----------+--------------+------+-----+---------+-------+
| EmpId     | int(11)      | YES  |     | NULL    |       |
| EmpName   | varchar(100) | YES  |     | NULL    |       |
| EmpAge    | int(11)      | YES  |     | NULL    |       |
| EmpSalary | float        | YES  |     | NULL    |       |
+-----------+--------------+------+-----+---------+-------+
4 rows in set (0.05 sec)

检查表是否使用 InnoDB 创建。

mysql> SHOW TABLE STATUS FROM business LIKE 'EmployeeRecords';

这是输出 −

+-----------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+--------------------+----------+----------------+---------+
| 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 |
+-----------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+--------------------+----------+----------------+---------+
| employeerecords | InnoDB | 10 | Dynamic | 0 | 0 | 16384 | 0 | 0 | 0 | NULL | 2018-10-22 15:22:01 | NULL | NULL | utf8mb4_unicode_ci | NULL | | |
+-----------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+--------------------+----------+----------------+---------+
1 row in set (0.10 sec)

在上面的输出中,"Engine"显示为"InnoDB"。


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