sql.bas

一个进存销管理系统

Attribute VB_Name = "txtSQl"
Option Explicit

Public fMainForm As Main
Public gintMode As Integer
Public flagEdit As Boolean
Public recordNumber As Integer
Public numBuffer As String

Sub Main()
    Set fMainForm = New Main
    'Main.Show
End Sub
Public Function ConnectString() _
   As String
'返回数据库连接字符串
  ConnectString = App.Path & "\date"
    If Right(ConnectString, 1) <> "\" Then
    ConnectString = ConnectString + "\"
    End If
    ConnectString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & ConnectString & "jxc.mdb"
End Function
Public Function ExecuteSQL(ByVal SQL _
   As String, MsgString As String) _
   As ADODB.Recordset
'执行SQL语句并以记录集形式返回
   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
      '获得查询到的记录数
      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
'检查文本框否为空
Public Function Testtxt(txt As String) As Boolean
    If Trim(txt) = "" Then
        Testtxt = False
    Else
        Testtxt = True
    End If
End Function

Public Function STD(yy As String, mm As String, dd As String) As String
       STD = yy & "-" & mm & "-" & dd
End Function

Public Sub EnterToTab(keyasc As Integer)
   '判断是否为回车键
   If keyasc = 13 Then
       '转换成回车
       SendKeys "{tab}"
   End If
End Sub