我與我的數據庫有多對多的關係,所以我創建了一個sql查詢,稍後我將用於搜索。 現在我想要做的是從我的搜索結果(獨特的公司名稱)中獲取唯一的值。獲取唯一值作爲查詢結果
這是我的查詢:
SELECT agencies.company
,agencies.website_url
,agencies.STATUS
,agencies.size
,IndustryData.industry_id
,ProfessionData.profession_id
,SectorData.sector_id
,seniorityData.seniority_id
,ZonesData.zone_id
FROM agencies
LEFT JOIN (
SELECT agencies_industries.agency_id
,agencies_industries.industry_id
FROM agencies_industries
) AS IndustryData ON agencies.id = IndustryData.agency_id
LEFT JOIN (
SELECT agencies_professions.agency_id
,agencies_professions.profession_id
FROM agencies_professions
) AS ProfessionData ON agencies.id = ProfessionData.agency_id
LEFT JOIN (
SELECT agencies_sectors.agency_id
,agencies_sectors.sector_id
FROM agencies_sectors
) AS SectorData ON agencies.id = SectorData.agency_id
LEFT JOIN (
SELECT agencies_seniorities.agency_id
,agencies_seniorities.seniority_id
FROM agencies_seniorities
) AS SeniorityData ON agencies.id = SeniorityData.agency_id
LEFT JOIN (
SELECT agencies_zones.agency_id
,agencies_zones.zone_id
FROM agencies_zones
) AS ZonesData ON agencies.id = ZonesData.agency_id
WHERE IndustryData.industry_id = 3
AND ProfessionData.profession_id = 1
結果看起來是這樣的:
公司,WEBSITE_URL,狀態,大小,industry_id,profession_id,sector_id,seniority_id,zone_id
- Nine nine.com 1 3 3 1 3 2 1
- Nine nine.com 1 3 3 1 3 2 5
- 九nine.com 1 3 3 1 3 2 8
- 九nine.com 1 3 3 1 3 5 1
- 九nine.com 1 3 3 1 3 5 5
- 九nine.com 1 3 3 1 3 5 8
- 十ten.com 2 3 3 1 3 1 1
- 十ten.com 2 3 3 1 3 1 3
- 十ten.com 2 3 3 1 3 1 7
- Ten ten.com 2 3 3 1 3 3 1
- Ten ten.com 2 3 3 1 3 3 3
- 十ten.com 2 3 3 1 3 3 7
- 十ten.com 2 3 3 1 3 5 1
- 十ten.com 2 3 3 1 3 5 3
- 十ten.com 2 3 3 1 3 5 7
我想擺脫公司名稱的重複。我怎麼做?
有很多方法 - 你想做的事與改變最後兩個值,但什麼? – RedFilter
你只需要公司名稱或更多? – Matschie
@RedFilter這只是一個例子,不用擔心這兩個值有所不同 - 稍後我將使用此代碼來創建搜索 –