MySQLクエリ
SELECT
SELECT name,price FROM wp_user
INSERT INTO wp_user(name,price) VALUES ("john", 500)
UPDATE wp_user SET name = 'john', price = 500 WHERE id = 5
DELETE FROM wp_user WHERE id = 5
WHERE
WHERE price >= 100
WHERE price IS NOT NULL
WHERE price LIKE '%100yen%'
WHERE price = '100yen' AND name = 'Taro'
LIMIT
LIMIT 5
ORDER BY
ORDER BY カラム名 DESC