Question

select DISTINCT IDDetail, NamaProperti, Provinsi, Kota, Area, TipeListing, JenisProperti, Hadapnya, JenisSertifikat, Harga, LT, LB, foto1 from MsProperti as mp, MsSertifikat as ms, MsDetail as md, MsTipeListing mt where md.IDProperti = mp.IDProperti and md.IDSertifikat = ms.IDSertifikat and md.IDTipeListing = mt.IDTipeListing and Provinsi = 'BSD' or Kota = 'BSD' or Area = 'BSD' and AlreadySold = 0 order by IDDetail desc

我知道没有明显它会给我很多相同的数据，然后我在Select之后放DISTINCT使它只给我1个相同的数据。但它没有什么不同。

有什么建议吗？

答案是在WHERE查询结束后添加GROUP BY。这是asnwer

    select IDDetail, NamaProperti, Provinsi, Kota, Area, TipeListing, JenisProperti, Hadapnya, JenisSertifikat, Harga, LT, LB, foto1
from MsProperti as mp, MsSertifikat as ms, MsDetail as md, MsTipeListing mt
where md.IDProperti = mp.IDProperti and 
md.IDSertifikat = ms.IDSertifikat and 
md.IDTipeListing = mt.IDTipeListing ".$tambahquery." and AlreadySold = 0
group by IDDetail
order by IDDetail desc

感谢。

Answer 1

使用GROUP BY代替DISTINCT。像：

SELECT 
    IDDetail, 
    NamaProperti, 
    Provinsi, 
    Kota, 
    Area, 
    TipeListing, 
    JenisProperti, 
    Hadapnya, 
    JenisSertifikat, 
    Harga, 
    LT, 
    LB, 
    foto1 
FROM 
    MsProperti as mp, 
    MsSertifikat as ms, 
    MsDetail as md, 
    MsTipeListing mt 
WHERE 
    md.IDProperti = mp.IDProperti AND 
    md.IDSertifikat = ms.IDSertifikat AND 
    md.IDTipeListing = mt.IDTipeListing AND 
    Provinsi = 'BSD' OR 
    Kota = 'BSD' OR 
    Area = 'BSD' AND 
    AlreadySold = 0 
GROUP BY
    IDDetail, 
    NamaProperti, 
    Provinsi, 
    Kota, 
    Area, 
    TipeListing, 
    JenisProperti, 
    Hadapnya, 
    JenisSertifikat, 
    Harga, 
    LT, 
    LB, 
    foto1 
ORDER BY 
    IDDetail DESC

如何解决这个不同的SQL查询

1 个答案: