EN
MySQL - Select query
0 points
In this article, we would like to show you how to make SELECT query in MySQL.
Quick solution:
xxxxxxxxxx1
SELECT `column1`, `column2`, ...2
FROM `table_name`;xxxxxxxxxx1
SELECT * FROM `table_name`;To show how the SELECT statement works, we will use the following table:
Note:
At the end of this article you can find database preparation SQL queries.
In this example, we will display all names.
Query:
xxxxxxxxxx1
SELECT `name` AS `names` FROM `users`;Output:
In this example, we will display all the information about users.
Query:
xxxxxxxxxx1
SELECT * FROM `users`;Output:
create_tables.sql file:
xxxxxxxxxx1
CREATE TABLE `users` (2
`id` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,3
`name` VARCHAR(50) NOT NULL,4
`surname` VARCHAR(50) NOT NULL,5
`department_id` INT(10) UNSIGNED,6
`salary` DECIMAL(15,2) NOT NULL,7
PRIMARY KEY (`id`)8
);insert_data.sql file:
xxxxxxxxxx1
INSERT INTO `users`2
( `name`, `surname`, `department_id`, `salary`)3
VALUES4
('John', 'Stewart', 1, '3512.00'),5
('Chris', 'Brown', 2, '1344.00'),6
('Kate', 'Lewis', 3, '6574.00'),7
('Ailisa', 'Gomez', NULL, '6500.00'),8
('Gwendolyn', 'James', 2, '4200.00'),9
('Simon', 'Collins', 4, '3320.00'),10
('Taylor', 'Martin', 2, '1500.00'),11
('Andrew', 'Thompson', NULL, '2100.00');