SQL INSERT INTO 语句用于向数据库中的表添加新的数据行.
INSERT INTO语句有两种基本语法,如下所示.
INSERT INTO TABLE_NAME(column1,column2,column3,. ..columnN) VALUES(value1,value2,value3,... valueN);
这里,column1,column2,column3,... columnN是表中要插入数据的列的名称.
如果要为表的所有列添加值,则可能不需要在SQL查询中指定列名称.但请确保值的顺序与表中的列的顺序相同.
SQL INSERT INTO 语法如下 :
INSERT INTO TABLE_NAME VALUES(value1,value2,value3,... valueN);
以下语句将在CUSTOMERS表中创建六条记录.
INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (1, 'Ramesh', 32, 'Ahmedabad', 2000.00 ); INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (2, 'Khilan', 25, 'Delhi', 1500.00 ); INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (3, 'kaushik', 23, 'Kota', 2000.00 ); INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (4, 'Chaitali', 25, 'Mumbai', 6500.00 ); INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (5, 'Hardik', 27, 'Bhopal', 8500.00 ); INSERT INTO CUSTOMERS (ID,NAME,AGE,ADDRESS,SALARY) VALUES (6, 'Komal', 22, 'MP', 4500.00 );
您可以使用第二种语法在CUSTOMERS表中创建记录,如下所示.
INSERT IN TO CUSTOMERS VALUES(7,'Muffy',24,'Indore',10000.00);
所有上述语句都会在CUSTOMERS表中产生以下记录,如下所示.
+----+----------+-----+-----------+----------+ | ID | NAME | AGE | ADDRESS | SALARY | +----+----------+-----+-----------+----------+ | 1 | Ramesh | 32 | Ahmedabad | 2000.00 | | 2 | Khilan | 25 | Delhi | 1500.00 | | 3 | kaushik | 23 | Kota | 2000.00 | | 4 | Chaitali | 25 | Mumbai | 6500.00 | | 5 | Hardik | 27 | Bhopal | 8500.00 | | 6 | Komal | 22 | MP | 4500.00 | | 7 | Muffy | 24 | Indore | 10000.00 | +----+----------+-----+-----------+----------+
您可以通过另一个表上的select语句将数据填充到表中;如果另一个表有一组字段,这些字段是填充第一个表所必需的.
这是语法 :
INSERT INTO first_table_name [(column1, column2, ... columnN)] SELECT column1, column2, ...columnN FROM second_table_name [WHERE condition];