极客教程MySQL 如何使用InnoDB引擎创建表
要创建使用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;
查询已成功，影响 0 行 (0.46 秒)
我们已将引擎设置为INNODB。
使用DESC命令检查表的完整描述。
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 行记录 (0.05 秒)
要检查表是否使用InnoDB创建。
mysql> SHOW TABLE STATUS FROM business LIKE 'EmployeeRecords';
以下是输出 −
+-----------------+--------+---------+------------+------+----------------+-------------+-----------------+--------------+-----------+----------------+---------------------+-------------+------------+--------------------+----------+----------------+---------+
| 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 行记录 (0.10 秒)
在上面的输出中，“Engine”可见为“InnoDB”。
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