module1.bas

用visual basic 6.0 开发的超市管理信息系统！

Attribute VB_Name = "Module1"
Public flaggedit As Boolean
Public num, number As Integer
Public Tsql As String
Public Function ConnectString() _
   As String
'returns a DB ConnectString
   ConnectString = "FileDSN=myconnection.dsn;UID=sa;PWD=ninglihua"
End Function
Public Function ExecuteSQL(ByVal SQL _
   As String, MsgString As String) _
   As ADODB.Recordset
'executes SQL and returns Recordset
   Dim cnn As ADODB.Connection
   Dim rst As ADODB.Recordset
   Dim sTokens() As String
   Dim getncol As ADODB.FieldAttributeEnum
   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
      'rst.MoveLast     'get RecordCount
      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