我越來越的值賦給一個變量在SELECT語句,然後用來查找嵌套查詢語句價值
是分配一個值給變量的SELECT語句不能與合併錯誤數據檢索操作。
這是我的SELECT語句。
SELECT A.vendor_id, **@vendor_employee** = A.vendor_employee_id
, B.txt_first_name, B.txt_last_name,
SELECT txt_Vendor_Employee_Detail_Element,
(CASE
WHEN txt_Vendor_Employee_Detail_Value <> ''
AND txt_Vendor_Employee_Detail_Value IS NOT NULL
THEN txt_Vendor_Employee_Detail_Value
ELSE CONVERT(VARCHAR, txt_Vendor_Employee_Detail_Date)
END) AS Vendor_Detail_Element_Value
FROM t_vendor_employee_detail
WHERE vendor_employee_id = **@vendor_employee**)
FROM...
這解決了這個問題。我不認爲我可以在嵌套查詢中使用外部值。謝謝你,先生 – dright 2012-03-08 17:07:04