Ms access Access Delete命令无法识别变量

我试图使用Dlookup设置一个变量，该变量引用表中设置的数值。我不能像直接设置值那样正确设置格式。第一个命令起作用，第二个命令尝试删除不正确数量的记录，第三个命令提示我“输入参数”

请帮忙

Sub purge_whse()

Dim purge As Integer

purge = DLookup("Setting_Value", "app_settings", "[Setting_Name]='data_retention'")

DoCmd.RunSQL "DELETE * FROM tbl_whse_cr WHERE DateDiff('m',[INSERT_DTTM],Now()) > 13;"
DoCmd.RunSQL "DELETE * FROM tbl_whse_cr_edi_cnfg WHERE DateDiff('m',[INSERT_DTTM],Now()) > 'purge';"
DoCmd.RunSQL "DELETE * FROM tbl_whse_cr_edi_cnfg WHERE DateDiff('m',[INSERT_DTTM],Now()) > purge;"

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我相信你想要的是：

DoCmd.RunSQL "DELETE * FROM tbl_whse_cr_edi_cnfg WHERE DateDiff('m',[INSERT_DTTM],Now()) > " & purge & ";"

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“Purge”是一个变量，因此它必须存在于RunSQL字符串之外。

我相信您想要的是：

DoCmd.RunSQL "DELETE * FROM tbl_whse_cr_edi_cnfg WHERE DateDiff('m',[INSERT_DTTM],Now()) > " & purge & ";"

“Purge”是一个变量，因此它必须存在于RunSQL字符串之外