<%'*======================================
'* 名稱：useDb.asp
'* 功能：數據庫操作函數庫
'* 作者：intereye
'* 信箱：inteye@163.com
'* 主頁：http://www.inteye.net
'* BLOG：http://blog.csdn.net/intereye
'*======================================

'* 函數：openDb(dbType,dbUser,dbPass,dbName,dbServer,dbPath)
'* 功能：打開數據庫連接
'* 參數：dbType->數據庫類型 MDB ACCESS數據庫 || SQLSERVER SQLSERVER數據庫
'* 參數：dbUser->訪問數據庫用戶名
'* 參數：dbPass->訪問數據庫密碼
'* 參數：dbName->數據庫名稱
'* 參數：dbServer->數據庫Host
'* 參數：dbPath->數據庫路徑

Function openDb(dbType,dbUser,dbPass,dbName,dbServer,dbPath)
Dim Conn
Set Conn = Server.CreateObject("ADODB.Connection")
Select case dbType
case "MDB":
connStr = "driver={Microsoft Access Driver (*.mdb)};dbq=" & Server.MapPath(""&dbPath&dbName&"")
case "SQLSERVER":
connStr = "Provider=SQLOLEDB.1;Password="&dbPass&";Persist Security Info=True;User ID="&dbUser&";Initial Catalog="&dbName&";Data Source="&dbServer&""End Select
Conn.Open connStr
End Function

'* 函數：add(tabname,fieldlist,dblist)
'* 功能：在數據庫中插入一條記錄
'* 參數：tabname->數據表名
'* 參數：dblist->數據表字段名數組
'* 參數：fieldlist->表單變量名數組
'* 返回：0 false || 1 true

Function add(tabname,dblist,fieldlist)
    Sql = "Insert INTO "&tabname&"("
    Value = ""
    Field = ""
    For Each v in dblist
        Field = Field & v & ","
    Next
    Field = Left(Field,Len(Field)-1)
    Value = Field & ") VALUES("
    For Each v in fieldlist
        If Request.Form(v) <> "" Then
            Value = Value & "'" & Request.Form(v) & "',"
        Else
            Value = Value & "'" & v & "',"
        End If
    Next
    Value = Left(Value,Len(Value)-1)
    Sql = Sql & Value & ")"
    Conn.Execute(Sql)
    CloseDb()
    If Err Then
        add = 0
    Else
        add = 1
    End If
End Function

'* 函數：update(tabname,dblist,fieldlist,id)
'* 功能：更新數據庫中指定的一條記錄
'* 參數：tabname->數據表名
'* 參數：dblist->數據庫字段名稱數組
'* 參數：fieldlist->表單變量名數組
'* 參數：id->數據ID號
'* 返回：0 false || 1 true

Function update(tabname,dblist,fieldlist,id)
    Sql = "Update " & tabname & " Set "
    Value = ""
    For i=0 to ubound(dblist)
        Value = Value & dblist(i) & "='"
        If Request.Form(fieldlist(i)) <> "" Then
            Value = Value & Request.Form(fieldlist(i)) & "',"
        Else
            Value = Value & fieldlist(i) & "',"
        End If
    Next
   
    Value = Left(Value,Len(Value)-1)
    Sql = Sql & Value & " Where id=" & id
    Conn.Execute(Sql)
    CloseDb()
    If Err Then
        update = 0
    Else
        update = 1
    End If
End Function

'* 函數：del(tabname,id)
'* 功能：從數據庫中刪除一條指定記錄
'* 參數：tabname->數據表名稱
'* 參數：id->數據ID號
'* 返回：0 false || 1 true

Function del(tabname,id)
    Sql = "Delete FROM " & tabname & " Where id in(" & id & ")"
    Conn.Execute(Sql)
    CloseDb()
    If Err Then
        del = 0
    Else
        del = 1
    End If
End Function

'* 函數：getRow(tabname,fieldlist,caseStr)
'* 功能：從數據庫中取得一行
'* 參數：tabname->數據表名
'* 參數：fieldlist->數據字段數組
'* 參數：caseStr->Sql條件語句

Function getRow(tabname,fieldlist,caseStr)
    If Not isArray(fieldlist) Then
        fieldlist = "*"
    Else
        Field = ""
        For Each val in fieldlist
            Field = Field & val & ","
        Next
        fieldlist = Left(Field,Len(Field)-1)
    End If
   
    Sql = "Select " & fieldlist & " FROM " & tabname & caseStr
    Set Rs = Conn.Execute(Sql)
   
    If Rs.Eof AND Rs.Bof Then
        getRow = 0
    Else
        getRow = 1
    End If
End Function

'* 函數：CloseDb()
'* 功能：關閉數據庫連接并釋放對象

Function CloseDb()
Conn.Close
Set Conn = Nothing
End Function



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