module1.bas

此系统用于教学所用,用于老师进行教学所用

Attribute VB_Name = "Module1"
 Public Function ExecuteSQL(ByVal SQL _
   As String, MsgString As String) _
   As ADODB.Recordset
   Dim cnn As ADODB.Connection
   Dim rst As ADODB.Recordset
   Dim sTokens() As String
   On Error GoTo ExecuteSQL_Error
   sTokens = Split(SQL)
   Set cnn = New ADODB.Connection
   cnn.Open connectstring
   If InStr("INSERT,DELETE,UPDATE", _
   UCase$(sTokens(0))) Then
   cnn.Execute SQL
   MsgString = sTokens(0) & _
   "query successful"
   Else
   Set rst = New ADODB.Recordset
   rst.Open Trim$(SQL), cnn, _
   adOpenKeyset, _
   adLockOptimistic
   Set ExecuteSQL = rst
   MsgString = "查询到" & rst.RecordCount & _
   "条记录"
   End If
ExecuteSQL_Exit:
   Set rst = Nothing
   Set cnn = Nothing
   Exit Function
ExecuteSQL_Error:
   MsgString = "查询错误:" & _
   Err.Description
   Resume ExecuteSQL_Exit
   End Function

Public Function connectstring() _
 As String
  connectstring = "filedsn=tiku.dsn;"
End Function
 

Public Function testtxt(txt As String) As Boolean
  If Trim(txt) = "" Then
   testtxt = False
   Else
     testtxt = True
     End If
End Function