SQL语句条件中日期字段如何写
时 间:2018-04-28 11:50:31
作 者:iamlaosong ID:65695 城市:合肥
摘 要:SQL语句条件中日期字段如何写
正 文:
构成SQL语句时日期直接使用是不行的,即使变量是日期型,但构成SQL语句时还是会被当成字符串处理的,要想把字符串转换称日期型数据,需要用“#”括起来,例如下面这个统计过程:
Private Sub btnOK_Click() Dim StartDate As Date, EndDate As Date Dim strSQL, strItem As String DoCmd.SetWarnings False DoCmd.RunSQL "Delete from tblTransSum" '统计日期 StartDate = Nz(Me.txtStartDate) EndDate = Nz(Me.txtEndDate) If StartDate = 0 or EndDate = 0 Then MsgBox "请先选择日期,然后点击统计按钮!", vbCritical, "提示" Exit Sub End If '统计单位 If Me.frmItem = 1 Then strItem = "FAbbr" Else strItem = "CAbbr" End If '统计 strSQL = "Insert into tblTransSum (Item,ExtraFee,DeductFee,SettleFee,CExtraFee,CDeductFee,CSettleFee) Select " & strItem strSQL = strSQL & ",sum(ExtraFee),sum(DeductFee),sum(SettleFee),sum(CExtraFee),sum(CDeductFee),sum(CSettleFee) from tblTransport" strSQL = strSQL & " Where AuditState and AuditDate Between #" & StartDate & "# and #" & EndDate & "# Group by " & strItem DoCmd.RunSQL strSQL '插入一条合计 strSQL = "Insert into tblTransSum (Item,ExtraFee,DeductFee,SettleFee,CExtraFee,CDeductFee,CSettleFee) Select '合计'" strSQL = strSQL & ",sum(ExtraFee),sum(DeductFee),sum(SettleFee),sum(CExtraFee),sum(CDeductFee),sum(CSettleFee) from tblTransSum" '刷新显示 RequeryDataObject Me.sfrList End Sub
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