module1.bas

数据库课程设计

Attribute VB_Name = "Module1"
Public dbPath As String
Public connStr As String


'======================================================
' 本函数的功能是执行SQL语句，并返回结果集
'======================================================
Public Function ExecuteSQL(ByVal SQL As String, MsgString As String) As ADODB.Recordset
   
   Dim conn As ADODB.Connection
   Dim rst As ADODB.Recordset
   Dim sTokens() As String
   
   On Error GoTo ExecuteSQL_Error
   
   sTokens = Split(SQL)
   Set conn = New ADODB.Connection
   conn.Open connStr
   If InStr("INSERT,DELETE,UPDATE", UCase$(sTokens(0))) Then
      conn.Execute SQL
      MsgString = sTokens(0) & " query successful"
   Else
      Set rst = New ADODB.Recordset
      rst.Open Trim$(SQL), conn, adOpenKeyset, adLockOptimistic
      
      Set ExecuteSQL = rst
      MsgString = "查询到" & rst.RecordCount & " 条记录 "
   End If
ExecuteSQL_Exit:
   Set rst = Nothing
   Set conn = Nothing
   Exit Function
   
ExecuteSQL_Error:
   MsgString = "查询错误: " & Err.Description
   Resume ExecuteSQL_Exit
   
End Function