using连接数据库，执行SQL命令，使用适配器返回数据集。我们不需要去关心它的conn的资源是否关闭。当我们不用到它时。系统自动帮我们安全关闭...

很好的SQL教程（21天学会SQL）-good SQL Directory (21 days Institute SQL)

图书馆管理系统(使用vb+sql)可以实现对图书馆的的一些数据管理-Library Management System (vb use sql) can be achieved on some of the library data management

如何用sql建立表，并且学会如何通过sql查询-establish how sql table, and to learn how to inquiries by sql

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使用VB。NET+SQL SERVER做的人力资源管理系统-vb.net+sql server

SQL sever 2000中有关安全性的学习资料，需要的请下载-SQL sever 2000 relating to the safety of learning materials, need to download ....

delphi+sql万能数据库连接示例,自己初学delphi时写的，相信对入门学习delphi进行ADO连接SQL的朋友有些帮助-Universal Database Connection example, when a delphi himself had written, and I believe that the entry delphi study conducted ADO SQL help some friends

详细介绍了sqlserver游标和事物的应用(Details sqlserver cursor and the application of things)

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在SQL中删除重复记录 学习sql有一段时间了，发现在我建了一个用来测试的表（没有建索引）中出现了许多的重复记录。后来总结了一些删除重复记录的方法，在Oracle中，可以通过唯一rowid实现删除重复记录；还可以建临时表来实现...这个只提到其中的几种简单实用的方法，希望可以和大家分享（以表employee为例）。-SQL delete duplicate records sql learning for a long time, I found in a building used for the test (not built Index) There"s a lot of duplication of records. Later up in the deletion of duplicate records, Oracle, can only achieve rowid delete duplicate records; Also temporary tables can be built to achieve ... the only mention of several simple, practical methods, and we hope to share (table employee example).