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博客园 - Edison Zhu

Zhuanzai: change Asp.net Themes dynamicly (Setting An ASP.NET Theme in the PreInit Event Handler) zhuanzai: AJAX: How to create a "Processing" modal window using UpdateProgress and ModalPopup ASP.net AJAX controls - Edison Zhu 转:Manage Web.config from XML File by using configSource attribute ASP.Net 2.0 [转载] 微软SQL Server事务隔离级别实例简介 [转载] Moving table to a different filegroup in SQL 2005 [转载] SQL SERVER – 2005 – Database Table Partitioning Tutorial – How to Horizontal Partition Database Table [转载] SQL SERVER – 2005 – Introduction to Partitioning 转载:.NET Programming Standards and Naming Conventions [引]:聚集索引与非聚集索引 Trouble Shooting: can not access Excel file using excel control C#中小数点后保留两位小数,四舍五入的函数及使用方法 IE7下关闭窗口不弹出提示窗口方法 [转]ASP.NET如何在客户端调用服务端代码 [转]谈谈Cookie存取和IE页面缓存的问题 Operate File [转] 客户端的JavaScript脚本中获取服务器端控件的值 及ID BULK INSERT Temporary Tables [转]调用.NET XML Web Services返回数据集合
关于锁
Edison Zhu · 2007-12-12 · via 博客园 - Edison Zhu

关于锁


1. 查询时用S锁,更新时要排它锁。
如果要更新,发现有S锁,也要等S锁释放了,再加排它锁

posted on 2007-12-12 18:27  Edison Zhu  阅读(152)  评论(0)    收藏  举报