Выберите различные
SELECT DISTINCT ma_colonne
FROM nom_du_tableau
Courageous Cowfish
SELECT DISTINCT ma_colonne
FROM nom_du_tableau
SELECT DISTINCT Column_name FROM table_name;
produces only one of two of the same data
returns only one of two of the same data
SELECT a.*
FROM emails a
INNER JOIN
(SELECT email,
MIN(id) as id
FROM emails
GROUP BY email
) AS b
ON a.email = b.email
AND a.id = b.id;
SELECT DISTINCT country
FROM Customers;
SELECT DISTINCT ColumnName FROM TableName;