SQL Insert Into Value

有两种方法可以向表中插入值。

第一种方法不需要指定要插入数据的列名,只需要它们的值。

语法

INSERT INTO table_name  
VALUES (value1, value2, value3....);

第二种方法指定要插入的列名称和值。

语法

INSERT INTO table_name (column1, column2, column3....)  
VALUES (value1, value2, value3.....);

假设有一个学生表,其结构如下所示:

CREATE TABLE STUDENTS (  
    ID INT NOT NULL,  
    NAME VARCHAR (20) NOT NULL,  
    AGE INT NOT NULL,  
    ADDRESS CHAR (25),  
    PRIMARY KEY (ID)  
);

下面要向这个表中插入五条记录,参考以下语句 –

INSERT INTO STUDENTS (ROLL_NO, NAME, AGE, CITY)  
VALUES (1, 'ABHIRAM', 22, 'ALLAHABAD');  
INSERT INTO STUDENTS (ROLL_NO, NAME, AGE, CITY)  
VALUES (2, 'ALKA', 20, 'GHAZIABAD');  
INSERT INTO STUDENTS (ROLL_NO, NAME, AGE, CITY)  
VALUES (3, 'DISHA', 21, 'VARANASI');  
INSERT INTO STUDENTS (ROLL_NO, NAME, AGE, CITY)  
VALUES (4, 'ESHA', 21, 'DELHI');  
INSERT INTO STUDENTS (ROLL_NO, NAME, AGE, CITY)  
VALUES (5, 'MANMEET', 23, 'JALANDHAR');

不需要指定列名称,如下所示 –

INSERT INTO STUDENTS 
VALUES (1, 'ABHIRAM', 22, 'ALLAHABAD');  
INSERT INTO STUDENTS
VALUES (2, 'ALKA', 20, 'GHAZIABAD');  
INSERT INTO STUDENTS
VALUES (3, 'DISHA', 21, 'VARANASI');  
INSERT INTO STUDENTS
VALUES (4, 'ESHA', 21, 'DELHI');  
INSERT INTO STUDENTS
VALUES (5, 'MANMEET', 23, 'JALANDHAR');

        原文作者:SQL教程
        原文地址: https://www.yiibai.com/sql/sql-insert-into-values.html
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