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ADO CursorLocation 属性


❮ 连接对象完整参考

CursorLocation 属性设置或返回一个长整型值,该值指示游标服务的所在位置。它可以设置为 CursorLocationEnum 值之一。默认值为 AdUseServer。

游标用于

  • 控制记录导航
  • 控制数据库中更改的可见性
  • 控制数据的可更新性

注意:记录集对象从关联的连接对象继承此设置。

注意:此属性在打开的记录集对象上为只读,在连接对象或关闭的记录集对象上为读/写。


语法

objConnection.CursorLocation
objRecordset.CursorLocation

示例

<%
set conn=Server.CreateObject("ADODB.Connection")
conn.Provider="Microsoft.Jet.OLEDB.4.0"
conn.Open(Server.Mappath("northwind.mdb"))
set rs=Server.CreateObject("ADODB.recordset")
sql="SELECT * FROM Customers"

rs.CursorLocation=adUseClient
rs.CursorType=adOpenStatic
rs.LockType=adLockBatchOptimistic

rs.Open sql,conn

rs.Close
conn.Close
%>

CursorLocationEnum 值

常量 描述
adUseNone 1 已过时(仅出于向后兼容性而显示)。不使用游标服务
adUseServer 2 默认值。使用服务器端游标
adUseClient 3 使用本地游标库提供的客户端游标。出于向后兼容性,还支持同义词 adUseClientBatch

❮ 连接对象完整参考
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