贸易方面小程序，VB ＋ SQL 数据库，希望对大家有所帮忙

一个在在程序运行阶段用代码自动建立MDB数据库文件- In automatically establishes the MDB database file in the procedure movement stage with the code

WINDOWS下开发MYSQL数据库的代码-Windows MYSQL database developed under the code

看一看!一个很好的学生档案管理系统.具有很好的功能.用SQL server 2000以及VB编写成的.具有一定的价值.-look! A good student records management system. Have a good function. Using SQL server 2000 and the preparation of 10% of the VB. Have some value.

ADO编程技术,数据库开发，非常不错的书。 比较全面，是VB的例子-ADO programming techniques, database development, a very good book. More comprehensive, are examples of VB

一个SQL数据库优化查询的程序，对于操作者输入的SQL语句，先进行优化而后再执行查询，对于输入的错误SQL语句，指出错误位置-an SQL database query optimization procedures for the importation of the operator of SQL statements to optimize first and then execute a query, wrong for the importation of SQL statements that the wrong location

利用ADO技术连接MSSQL数据库，并利用OLE技术将数据导入到EXCEL中的源程序。-ADO technology connectivity MSSQL database using OLE data into Excel to the source.

操作Excel的一个控件-operation of a control Excel

企业管理系统应用实例，VB编写，希望对大家有所帮忙-Enterprise Management System applications, VB preparation, I hope all of you to help

定时备份数据库可以有效防止数据丢失，本源码可以设置备份时间，备份数据库和备份路径。-Regularly back up the database can effectively prevent data loss, this source can set the backup time, the backup database and backup path.

c#写的三层连接不同数据库。比较简单，但很实用、规范。