SQL语句问题具体什么意思呢？

 String, ByVal strSubFolderNo As String)
        Dim mySQL As String
        mySQL = "SELECT ROW_NUMBER() OVER (" & hdfFileListOrderBy.Value & ") AS RowNo, A.*, B.EmployeeName AS ReviserName FROM tblFileList AS A "
        mySQL += "LEFT OUTER JOIN tblMstEmployee AS B ON A.ReviserNo = B.EmployeeNo "
        mySQL += "WHERE A.SubjectNo = ‘" & strSubjectNo & "‘ AND A.SubFolderNo = " & strSubFolderNo
        If lblFileMgnTitleChi.Text <> "内部下载" Then
            mySQL += "AND A.ShowInPublic = ‘Y‘"
        End If
        Try
            Using mySqlDS As SqlDataSource = New SqlDataSource
                mySqlDS.ProviderName = strDbType
                mySqlDS.ConnectionString = WebConfigurationManager.ConnectionStrings(strCnnType & "DbBTA").ConnectionString
                mySqlDS.SelectCommand = mySQL
                mySqlDS.DataSourceMode = SqlDataSourceMode.DataSet
                Dim my_args As New DataSourceSelectArguments
                Dim my_DV As Data.DataView = mySqlDS.Select(my_args)
                lvFileList.DataSource = my_DV
                lvFileList.DataBind()
            End Using
        Catch ex As Exception
            Dim strErr As String = "●●● 程式错误讯息如下 ●●●" & "\n\n" & Replace(Replace(Replace(Replace(Trim(ex.ToString()), Chr(10), ""), Chr(13), ""), "\", "\\"), "‘", "\‘")
            ScriptManager.RegisterStartupScript(Me, Me.GetType(), "alert", "alert(‘" & strErr & "‘);", True)
        End Try
    End Sub

SQL语句问题具体什么意思呢？

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