主题：Microsoft Jet 数据库引擎找不到输入表或查询

 是否符合要求_是 起初是 false ,改成 true 后，代码正常运行，再次改成false ,改为true 时，就会出现这个问题，

Dim cmd,cmd1,cmd2 As New SQLCommand

        cmd.C

        cmd1.C

        cmd2.C

        cmd.commandtext =  "select count ([_Identify]) from {a} where [编号] = '" & dr("编号") & "' And [分组] <> '格式' and ([是否符合要求_是] = 1 or [是否符合要求_否] = 1 )  "

        Dim xms As Double = cmd.ExecuteScalar() '

        cmd1.commandtext =  "update  {b} set [进度] = " & xms & "  where [编号] = '" & dr("编号") & "'"

        Dim  c1 As Integer = cmd1.ExecuteNonQuery()

        cmd2.commandtext =  "update  {b} set [状态] = '审核'  where [项目数] = " & xms & " "

        Dim  c2 As Integer = cmd2.ExecuteNonQuery()