MySQL 如何使用准备语句创建表并插入值?
通过以下示例可以理解如何使用准备语句创建名为“学生”的表 –
mysql> PREPARE stmt3 FROM 'CREATE TABLE Student(Id INT, Name
Varchar(20))';
Query OK, 0 rows affected (0.00 sec)
Statement prepared
mysql> EXECUTE stmt3;
Query OK, 0 rows affected (0.73 sec)
mysql> DEALLOCATE PREPARE stmt3;
Query OK, 0 rows affected (0.00 sec)
现在,通过以下准备语句使用查询,我们可以将值插入到“学生”表中 –
在“学生”表中插入以下查询 –
mysql> PREPARE stmt7 FROM 'INSERT INTO Student(Id,Name) values(?,?)';
Query OK, 0 rows affected (0.00 sec)
Statement prepared
mysql> SET @A = 1, @B = 'Ram';
Query OK, 0 rows affected (0.00 sec)
mysql> EXECUTE stmt7 using @A, @B;
Query OK, 1 row affected (0.04 sec)
mysql> SET @A = 2, @B = 'Shyam';
Query OK, 0 rows affected (0.00 sec)
mysql> EXECUTE stmt7 using @A, @B;
Query OK, 1 row affected (0.08 sec)
mysql> SET @A = 3, @B = 'Mohan';
Query OK, 0 rows affected (0.00 sec)
mysql> Select * from Student;
+------+-------+
| Id | Name |
+------+-------+
| 1 | Ram |
| 2 | Shyam |
| 3 | Mohan |
+------+-------+
3 rows in set (0.00 sec)
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