Variable de incremento de procedimiento mysql

Question

Estoy tratando de obtener un rango de usuario en la mesa con tiempo almacenado.

La consulta SQL RAW funciona bien, pero no puedo hacer que funcione como procedimiento.

SET @rownum := 0;
SELECT rank, user_id, best_time
FROM (
  SELECT @rownum := @rownum +1 AS rank,id, best_time, user_id
  FROM user_round WHERE round_id=1 ORDER BY best_time ASC
) AS result WHERE user_id = 1 

Mi intento de procedimiento:

BEGIN
 DECLARE variable INT DEFAULT 0;
 SELECT rank,best_time, user_id
 FROM (
  SELECT SET variable=variable+1 AS rank, best_time, user_id
  FROM database.user_round WHERE round_id=1 ORDER BY best_time ASC
 ) AS result WHERE user_id = 1;
END

Answer 1

Necesitas continuar usando un 9.4. Variables definidas por el usuario, No un 13.6.4.1. Variable local Declarar sintaxis:

BEGIN
    -- DECLARE variable INT DEFAULT 0;
    SELECT rank, best_time, user_id
    FROM (
        -- SELECT SET variable = variable + 1 AS rank, best_time, user_id
        SELECT @variable := @variable + 1 AS rank, best_time, user_id
        FROM database.user_round, (SELECT @variable := 0) init
        WHERE round_id = 1
        ORDER BY best_time ASC
    ) AS result
    WHERE user_id = 1;
END