只有某些领域高于0时才加入

Question

这是为了查找玩家，现在如果他们不是公会会员将返回。因此，如果p.rank_id大于零，代替几个查询是否可以只加入ranks和guilds？

如果这是可能的话，会很棒！

SELECT 
    p.id, 
    p.name, 
    p.sex, 
    p.level, 
    p.city, 
    p.last_login, 
    p.comment, 
    p.skill, 
    r.name AS rank, 
    g.name AS guild 
FROM 
    players p 
INNER JOIN 
    ranks r 
ON 
    r.id = p.rank_id 
INNER JOIN 
    guilds g 
ON 
    g.id = r.guild_id 
WHERE 
    p.name = :name 

Answer 1

尝试UNION ALL像：

SELECT p.id, p.name, p.sex, p.level, p.city, p.last_login, p.comment, p.skill, r.name AS rank, g.name AS guild 
FROM players p 
INNER JOIN ranks r 
ON r.id = p.rank_id 
INNER JOIN guilds g 
ON g.id = r.guild_id 
WHERE p.name = :name and p.rankid>0 
UNION ALL 
SELECT p.id, p.name, p.sex, p.level, p.city, p.last_login, p.comment, p.skill, '' AS rank, '' AS guild 
FROM players p 
WHERE p.name = :name and p.rankid=0 

Answer 2

当然可以。添加

AND p.rankid > 0 

您WHERE条款，如

WHERE 
    p.name = :name AND p.rankid > 0