SQL：我只得到一行返回每個用戶

Question

我需要爲每個用戶返回遊戲的'flashcards'的所有行。

目前我只收到每行用戶返回的一行。

SELECT 
    s.name as Escuela, 
    sc.class_description as Clase, 
    u.level as "Nivel Del Alumno", 
    CONCAT(u.firstname," ",u.lastname) as Nombre, 
    stats.game_type as "Tipo de Juego", 
    MIN(stats.time) as "Tiempo en Segundos", 
    SEC_TO_TIME(stats.time) as "Tiempo en Formato" 
FROM 
    game_statistics stats 
INNER JOIN 
    users1 u ON stats.user_id = u.id 
INNER JOIN 
    school_classes sc ON u.class_id = sc.id 
INNER JOIN 
    schools s ON s.id = sc.school_id 
WHERE 
    stats.game_type LIKE 'flashcards' 
GROUP BY 
    s.name, sc.class_description, 
    u.level, Nombre, stats.game_type 
ORDER BY 
    s.name, sc.class_description, 
    u.level, stats.game_type, stats.time 

Answer 1

使用以下查詢。您必須包含通配符%以獲得包含文本flashcard的所有行。無論何時在查詢中使用LIKE運算符，都應該使用通配符，否則使用LIKE的目的就會失效。

SELECT 
    s.name AS Escuela 
    ,sc.class_description AS Clase 
    ,u.level AS "Nivel Del Alumno" 
    ,CONCAT(u.firstname, " ", u.lastname) AS Nombre 
    ,stats.game_type AS "Tipo de Juego" 
    ,MIN(stats.TIME) AS "Tiempo en Segundos" 
    ,SEC_TO_TIME(stats.TIME) AS "Tiempo en Formato" 
    FROM game_statistics stats 
    INNER JOIN users1 u 
    ON stats.user_id = u.id 
    INNER JOIN school_classes sc 
    ON u.class_id = sc.id 
    INNER JOIN schools s 
    ON s.id = sc.school_id 
    WHERE stats.game_type LIKE '%flashcards%' 
    GROUP BY s.name 
      ,sc.class_description 
      ,u.level 
      ,Nombre 
      ,stats.game_type 
    ORDER BY s.name, sc.class_description, u.level, stats.game_type, stats.TIME