如何返回mysql子查询的行数

Question

我有以下SQL查询:

SELECT games.id, games.GameTitle FROM games 
WHERE EXISTS (
              SELECT filename FROM banners 
              WHERE banners.keyvalue = games.id 
                AND banners.filename LIKE '%front%'
             )

这对我的使用来说不太正确

我想要的是:

SELECT games.id, games.GameTitle 
FROM games WHERE EXISTS (
    COUNT(SELECT filename FROM banners 
    WHERE banners.keyvalue = games.id AND banners.filename LIKE '%front%') > 1
    )

即仅在子查询检索多于1行时选择.

Answer 1

就像那样:

SELECT games.id, games.GameTitle 
FROM games 
WHERE (
    SELECT COUNT(filename)
    FROM banners
    WHERE banners.keyvalue = games.id AND banners.filename LIKE '%front%'
) > 1