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在建議從成員和以前的文章中,我的interspire購物車數據庫,看起來像這樣上運行鍼對多個表的查詢:MySQL的groupconcat返回BLOB XXXB /昆明植物研究所
SELECT c.customerid, c.custconfirstname, c.custconemail, o.ordstatus, o.orddate, GROUP_CONCAT( 'Order Id: ', orderid, ' | Product name: ', ordprodname, ' | Quantity: ', ordprodqty, '<br>') AS ordered_items
FROM isc_customers c
LEFT OUTER JOIN isc_orders o ON o.ordcustid = c.customerid
LEFT OUTER JOIN isc_order_products op ON op.orderorderid = o.orderid
LEFT OUTER JOIN isc_product_images pi ON pi.imageprodid = op.orderprodid
GROUP BY c.customerid
HAVING COUNT(DISTINCT o.ordcustid) >0
AND o.ordstatus = 0
AND o.orddate < UNIX_TIMESTAMP() - '18000'
AND o.orddate > UNIX_TIMESTAMP() - '259200'
結果我進入phpmyadmin看起來像這樣:
customerid custconfirstname custconemail ordstatus orddate ordered_items
6532 Cust1 [email protected] 0 1337502962 [BLOB - 498B]
5522 Cust2 [email protected] 0 1337670453 [BLOB - 284B]
4321 Cust3 [email protected] 0 1337507476 [BLOB - 521B]
1235 Cust4 [email protected] 0 1337577095 [BLOB - 1.0 KiB]
9560 Cust5 [email protected] 0 1337518452 [BLOB - 1.0 KiB]
當我嘗試在php頁面中回顯結果來測試它,沒有什麼是返回。我只是想知道Blob的含義以及如何使用它。很明顯,它裏面有一些數據,我只是不知道如何訪問或使用它。
已經這樣做了,結果我忘記了ordered_items中的下劃線。謝謝。 – James