SQL server--> Inserting multiple rows into a table with identity column - sql

Question

I wanna insert a multiple rows into a table with identity column
I have a table called 'STU' with the following columns:
SNO (Primary Key, and Identity [i.e. autoincrementing])
NAME (not null)
CLASS (not null)
SECTION (not null)
CREATE TABLE STU (SNO INT IDENTITY (1,1) CONSTRAINT PK_SNO PRIMARY KEY (SNO),
NAME VARCHAR(25), CLASS VARCHAR(20), SECTION CHAR );
The values are got inserted while executing insert query for each row individually
INSERT INTO STU VALUES('A','1','A');
INSERT INTO STU VALUES('B','2','B');
INSERT INTO STU VALUES('C','3','C');
INSERT INTO STU VALUES('D','4','D');
INSERT INTO STU VALUES('E','5','E');
but while trying to insert multiple values using single insert query in every possible shots, it took throws an error
INSERT INTO STU (SNO,NAME,CLASS,SECTION)
VALUES(NULL,NULL,NULL,NULL)
,('A','B','C','D','E','F')
,('1','2','3','4','5','6')
,('A','B','C','D','E','F');
also
INSERT INTO STU (NAME,CLASS,SECTION) VALUES
('A','B','C','D','E','F'),
('1','2','3','4','5','6'),
('A','B','C','D','E','F');
also
INSERT INTO STU (NAME,CLASS,SECTION) VALUES
('A','1','A'),
('B','2','A'),('C','3','A'),
('D','4','D'),
('E','5','E'),
('F','6','F');
also
INSERT INTO STU (SNO,NAME,CLASS,SECTION) VALUES
(NULL,'A','1','A'),
(NULL,'B','2','A'),
(NULL,'C','3','A'),
(NULL,'D','4','D'),
(NULL,'E','5','E'),
(NULL,'F','6','F');

Answer 1

All your Insert statements are bad:
Make sure you are supplying the same number of columns as in the INSERT statement
Make sure you are not supplying SNO (it's automatic)
Here is an example:
INSERT INTO STU (NAME,CLASS,SECTION) VALUES
('A','B','C'),
('1','2','3'),
('A','B','C');

Answer 2

If you are on SQL Server 2005, use UNION ALL
INSERT STU (NAME,CLASS,SECTION)
SELECT 'A' AS NAME,'1' AS CLASS, 'A' AS SECTION
UNION ALL
SELECT 'B', '2', 'B'
UNION ALL
SELECT 'C', '3', 'C'
Versions later than 2005, you could use
INSERT STU (NAME,CLASS,SECTION)
VALUES ('A','1','A'),
('B','2','B'), ...

Answer 3

You just need to concatenate the SQL you had in your first example.
You can't insert into the identity column (unless you turn identity insert on of course).
INSERT INTO STU (NAME,CLASS,SECTION)
VALUES
('A','1','A'),
('B','2','A'),
('C','3','A'),
('D','4','D'),
('E','5','E'),
('F','6','F');
If you do want to turn identity insert on then you'd need to do the following:
SET IDENTITY_INSERT STU ON
INSERT INTO STU (SNO, NAME,CLASS,SECTION)
VALUES
(1, 'A','1','A'),
(2, 'B','2','A'),
(3, 'C','3','A'),
(4, 'D','4','D'),
(5, 'E','5','E'),
(6, 'F','6','F');
SET IDENTITY_INSERT STU OFF
SQL Fiddle

Answer 4

You can write this as:
INSERT INTO STU VALUES
('A','1','A'),
('B','2','B'),
('C','3','C'),
('D','4','D'),
('E','5','E');