傳入參數的db2查詢將被忽略

Question

我有一個db2查詢

SELECT SECTIONTITLE, VMETE.COALESCE_XML(XMLQUERY('$c/Details/UserResource[ResourceGroup=@VmeMerchantId_0]' passing i.SECTIONCONTENT as "c"), i.SECTIONCONTENT) as SECTIONCONTENT 
FROM VMETE.IPSP_CONFIGURATION i 
WHERE ("IPSPID" = @IPSP_ID_0) AND ("EFFECTIVETO" = @EFFECTIVE_TO_0) ORDER BY SORTORDER

其中有3個參數@ VmeMerchantId_0 @ IPSP_ID_0 @ EFFECTIVE_TO_0

在我的命令對象中，有三個參數

[0] = {@VmeMerchantId_0}
[1] = {@IPSP_ID_0}
[2] = {@EFFECTIVE_TO_0}

為什么只將[1] [2]傳遞給查詢，而忽略[0]？

COALESCE_XML是我編寫的函數，您可以認為它是COALESCE

Answer 1

我認為這可能有效：

XMLQUERY('$c/Details/UserResource[ResourceGroup=$var]' 
   passing i.SECTIONCONTENT as "c", @VmeMerchantId_0 as "var")