大家下午好,SQL查詢最近更新:
我一直在努力研究這一整天,我弄不明白。我在Excel中執行此查詢。
SELECT
PRICE_BOOK.status,
PRICE_BOOK.ms_code,
PRICE_BOOK.location_code,
SUPPLIER_LOC_HDR.name,
PRICE_BOOK.mfg_code,
PRICE_BOOK.group_code,
PRICE_BOOK.stock_id,
PRICE_BOOK.effective_date,
PRICE_BOOK.price
FROM dbo.MS_INFO MS_INFO, dbo.PRICE_BOOK PRICE_BOOK, dbo.SUPPLIER_LOC_HDR
SUPPLIER_LOC_HDR
WHERE MS_INFO.ms_code = PRICE_BOOK.ms_code AND
SUPPLIER_LOC_HDR.location_code = PRICE_BOOK.location_code AND
((PRICE_BOOK.mfg_code Not In ('Type1','Type2','Type3')))
這是導出每個位置,產品,有效時間和價格的價格。
但是,我只需要每個ms_code,location_code,name,mfg_code,group_code,stock_id的唯一組合的最新「PRICE_BOOK.effective_date」。
換句話說,我只需要導出每個產品的最新價格。
status ms_code location_code name mfg_code group_code stock_id effective_date price A Supplier1 Terminal 1 City #1 PartType1 Group1 61 7/5/17 0:01 1.09 A Supplier1 Terminal 1 City #1 PartType1 Group1 61 7/4/17 0:01 1.41 A Supplier1 Terminal 1 City #2 PartType1 Group1 61 7/3/17 0:01 1.76 A Supplier1 Terminal 1 City #2 PartType1 Group1 61 5/24/17 0:01 1.20 A Supplier1 Terminal 1 City #1 PartType1 Group1 62 7/5/17 0:01 1.67 A Supplier1 Terminal 1 City #1 PartType1 Group1 62 7/4/17 0:01 1.19 A Supplier1 Terminal 1 City #1 PartType1 Group1 62 7/3/17 0:01 1.14 A Supplier1 Terminal 1 City #1 PartType1 Group1 62 5/24/17 0:01 1.11 A Supplier1 Terminal 1 City #1 PartType1 Group1 63 7/5/17 0:01 1.33 A Supplier1 Terminal 1 City #1 PartType1 Group1 63 7/4/17 0:01 1.59 A Supplier1 Terminal 1 City #1 PartType1 Group1 63 7/3/17 0:01 1.61 A Supplier1 Terminal 1 City #1 PartType1 Group1 63 5/24/17 0:01 1.75 A Supplier1 Terminal 1 City #1 PartType1 Group1 64 7/5/17 0:01 1.75 A Supplier1 Terminal 1 City #1 PartType1 Group1 64 7/4/17 0:01 1.77 A Supplier2 Terminal 1 City #1 PartType1 Group1 64 7/3/17 0:01 1.45 A Supplier2 Terminal 1 City #1 PartType1 Group1 64 5/24/17 0:01 1.77
預期結果
status ms_code location_code name mfg_code group_code stock_id effective_date price A Supplier1 Terminal 1 City #1 PartType1 Group1 61 7/5/17 0:01 1.09 A Supplier1 Terminal 1 City #2 PartType1 Group1 61 7/3/17 0:01 1.76 A Supplier1 Terminal 1 City #1 PartType1 Group1 62 7/5/17 0:01 1.67 A Supplier1 Terminal 1 City #1 PartType1 Group1 63 7/5/17 0:01 1.33 A Supplier1 Terminal 1 City #1 PartType1 Group1 64 7/5/17 0:01 1.75 A Supplier2 Terminal 1 City #1 PartType1 Group1 64 7/3/17 0:01 1.45
編輯:每個時鐘的評論更改的查詢
SELECT
PRICE_BOOK.status,
PRICE_BOOK.ms_code,
PRICE_BOOK.location_code,
SUPPLIER_LOC_HDR.name,
PRICE_BOOK.mfg_code,
PRICE_BOOK.group_code,
PRICE_BOOK.stock_id,
PRICE_BOOK.effective_date,
PRICE_BOOK.price
FROM dbo.PRICE_BOOK PRICE_BOOK
INNER JOIN dbo.SUPPLIER_LOC_HDR SUPPLIER_LOC_HDR
ON SUPPLIER_LOC_HDR.location_code = PRICE_BOOK.location_code
WHERE ((PRICE_BOOK.mfg_code Not In ('Type1','Type2','Type3')))
由於提前,
傑夫
你可以提供你的架構的一些數據來編寫和測試查詢嗎? – Santosh
[SQL只能選擇列上具有最大值的行]的可能重複(https://stackoverflow.com/questions/7745609/sql-select-only-rows-with-max-value-on-a-column)。歡迎來到[tag:most-n-per-group],其他RDBMS有實用程序可以幫助您。另外,刪除隱式連接(以逗號分隔的'FROM'子句)語法,並使用顯式的'JOIN's和伴隨條件代替。 –
發條,抱歉,我不是程序員。不理解你說的話。感謝幫助。 – jeffpro