MySQL 如何基于现有表生成“创建表”命令

您可以使用SHOW CREATE命令基于MySQL中的现有表生成创建表命令。

语法如下

SHOW CREATE TABLE yourTableName;

为了理解上述语法，让我们创建一个表。创建表的查询如下所示

mysql> create table StudentInformation
   - > (
   - > StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   - > StudentName varchar(20),
   - > StudentAge int DEFAULT 18,
   - > StudentRollNo int,
   - > StudentAddress varchar(200),
   - > StudentMarks int,
   - > StudentDOB datetime,
   - > StudentAdmissionDate datetime
   - > );
Query OK, 0 rows affected (0.54 sec)

现在使用上述语法生成一个创建表命令。

查询如下所示

mysql> SHOW CREATE TABLE StudentInformation;

以下是输出

+--------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+--------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| StudentInformation | CREATE TABLE `studentinformation` (
`StudentId` int(11) NOT NULL AUTO_INCREMENT,
`StudentName` varchar(20) DEFAULT NULL,
`StudentAge` int(11) DEFAULT '18',
`StudentRollNo` int(11) DEFAULT NULL,
`StudentAddress` varchar(200) DEFAULT NULL,
`StudentMarks` int(11) DEFAULT NULL,
`StudentDOB` datetime DEFAULT NULL,
`StudentAdmissionDate` datetime DEFAULT NULL,
PRIMARY KEY (`StudentId`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci |
+--------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.04 sec)

阅读更多：MySQL 教程