2011年7月25日 星期一

pgdac和unidac插入效率究竟差多少？

sunstone| SUNSTONE的Delphi笔记 |22:50:30

pgdac和unidac都是http://www.devart.com公司出品的优秀控件。unidac对各种数据库通吃，pgdac是专用于postgreSQL数据库。既然都能用于pg数据库，那么他们究竟在效率上有什么差别呢。我的测试：同一台机器，同样的内容。插入10万条，每条语句插入1000条（使用insert &...

Want more…Games

David I| Sip from the Firehose |10:57:39

Do you like games? ?What type of game you might ask. ?Are you talking about computer games, board games, football games, Olympic games, basketball games, or the game of life? ?I would answer that I like all sorts of games. ?In computer games, you ...

postgreSQL数据库关于事务的几个要点

sunstone| SUNSTONE的Delphi笔记 |08:36:02

postgreSQL数据库 事务：1.postgreSQL数据库不支持事务嵌套，但是支持在当前事务里定义新保存点，用保存点来解决需要事务嵌套的地方。保存点可以嵌套。2.ROLLBACK TO SAVEPOINT1)回滚所有指定保存点建立之后执行的命令(包括这之后还有保存点的命令，也回滚了）?..

Cindy components pack v4.20

Embarcadero| CodeCentral Delphi Submissions |07:06:37

Package with more than 40 components for all delphi versions to build windows applications. - Gradient controls (buttons, speedbuttons, panels) with features like colored bevels, wallpaper, shadowText. TcyCommunicate and TcyCommRoomConnector allow...

Programmatically Retrieve Your IP Address Behind a Router / Proxy / Gateway Using Delphi Code

About.com| About.com Delphi Programming |02:00:24

inDelphi TIPS:: An IP Address (Internet Protocol Address) identifies and allows computers (printers, routers) to communicate with each other on a computer network.The external, WAN (Wide Area Network) IP address of the router is set when the route...