Inserting Multiple Rows
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Oftentimes we need to insert more than one row into a table, and re-writing the insert statements many times can be tedious and inefficient. Luckily, SQL provides us with a slightly shorter syntax which basically compresses multiple INSERT statements into a single query.
Following is the general syntax for inserting multiple rows using a single insert statement:
INSERT INTO table_name (column1, column2, column3, ...)
VALUES
(value1_1, value1_2, value1_3, ...),
(value2_1, value2_2, value2_3, ...),
(value3_1, value3_2, value3_3, ...),
...;
The following example shows the syntax for inserting multiple rows into a table called students which has three columns first_name, second_name and age:
1234567INSERT INTO students (first_name, second_name, age) VALUES ('Alice', 'Smith', 20), ('Bob', 'Johnson', 22), ('Charlie', 'Brown', 19); SELECT * FROM students;
Tip:
This syntax has a shorter version as well, in which we don't specify the column names:
INSERT INTO table_name
VALUES
(value1_1, value1_2, value1_3, ...),
(value2_1, value2_2, value2_3, ...),
(value3_1, value3_2, value3_3, ...),
…;
In this case the query will look like this:
INSERT INTO students
VALUES
('Alice', 'Smith', 20),
('Bob', 'Johnson', 22),
('Charlie', 'Brown', 19);
SELECT * FROM students;
Demonstration:
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