When there are multiple records are to be inserted in the table following is the common way using T-SQL.

USE [DatabaseName]
GO
 INSERT INTO MyTable (name, id)
 VALUES ('ankit',1);
 INSERT INTO MyTable (name, id)
 VALUES ('rohit',2);
 INSERT INTO MyTable (name, id)
 VALUES ('shashi',3);
 INSERT INTO MyTable (name, id)
 VALUES ('ritesh',4);
GO

The clause INSERT INTO is repeated multiple times. Many times DBA copy and paste it to save time. There is another alternative to this, which I use frequently. I use UNION ALL and INSERT INTO … SELECT… clauses.

Regarding performance there is not much difference. If there is performance difference it does not matter as I use this for one time insert script. I enjoy writing this way, as it keeps me focus on task, instead of copy paste. I have explained following script to new developer. He was quite pleased.

USE [DatabaseName]
GO
 INSERT INTO MyTable (name, id)
 SELECT 'ankit' ,1
 UNION ALL
 SELECT 'rohit' ,2
 UNION ALL
 SELECT 'shashi' ,3
 UNION ALL
 SELECT 'ritesh' ,4
GO