DatabaseAccessLayer

数据库更新源代码(database update source code!)

1.基于数据库的升级，比FTP、HTTP模式，优点：在一台计算机上，多个不 同版本的程序可以同时使用，互不影响。不用另外配置FTP/HTTP服务器。 2.可自动压缩文件,然后上传,提高上传与下载速度.减轻基于数据库的升级 的速度问题. 3.支持一个数据库中多个模块同时使用. 4.支持一个模块有多个文件.(网上的只能一个文件), 你的软件最好为多个文件, 因为有的文件未改变,下载会跳过. 5.支持文件位置在不同的文件夹. 6.本“自动升级系统”,也可以自动升级(注:仅随新系统升级时升级!!!) 7.新程序上传到服务器为自动的,不需要人工上传。(网上的都得手工一个一个上传．) 8.新程序下载为自动的。(网上的也自动，但不强制下载，本程序强制下载．) 9.支持两个数据库中的该表同步: 可用于连锁系统, 总部升级, 分店都会自动 升级。(1. Based on the database upgrade, than FTP, HTTP mode, advantages: on one computer, many do not The same version of the program can be used independently of each other. Do not also configure FTP/HTTP server. 2. Can automatically compress files, then upload to improve upload and download speed. To reduce the upgrade based on database The speed. 3. To support a database of multiple modules simultaneously. 4. Support a module has more than one file. (Online only a file) Your software is best for multiple files, because some files are not changed, downloaded will be skipped. 5. Support the file location in a different folder. 6. The "automatic upgrade system" can also be automatically upgraded (Note: Only with the new system upgrade upgrade!!!) 7. The new program is uploaded to the server automatically, without manual uploads. (The Internet had to upload one by one by hand.) 8. The new download is automatic. (Also automatically online, but not mandatory download, download t)

桂林电子科技大学的数据库课程的最后大作业，里面是一个学生选课系统的源码。(Guilin University of Electronic Science and Technology Database last great work, which is a class selection system source code.)

MDAC（Microsoft Data Access Components）是微软数据库访问组件，Netpise和许多利用数据库的软件都需要操作系统安装MDAC。很多用户的操作系统中已经存在了MDAC，有些是操作系统内置的、有些是其它应用程序安装的。(MDAC (Microsoft Data Access Components) is a Microsoft database access components, Netpise and many need to use the database software operating system to install MDAC. Many users of the operating system already exists in the MDAC, some built-in operating system, some other applications installed.)

VB编程实现Access数据库压缩功能，VB编程的朋友可以借鉴一下，压缩的效果还是很明显的，虽然不是很完美，但至少可以借鉴一下，为以后的编程思路提供参考。(VB Programming compression Access database, VB programming can learn from a friend about the effect of compression is very obvious, though not perfect, but at least you can learn from, programming ideas for future reference.)

一个在VC6里运用SQL语言，通过DAO方法访问ACCESS文件的vc工程。实现的功能有：创建MDB文件，新建、删除表单，对某表添加、删除、插入、修改记录。(A vc Project by sql language by DAO. It can create mdb file,or create a new tab,delete a tab,also add,delete ,insert collcetion in a certain tab. )

java环境   mysql数据库        

通过一个简单的项目实例“国家游泳队训练信息系统”，展示c++的威力。该项目包括，SQL server数据库连接数据库操作等（增、删、改查），是一个很好的学习资料。亦可作为收藏。包括对对话框的一些设置问题，对话框背景等........(Through a simple project examples "national swimming team training information system" to demonstrate the power of c++. The project includes, SQL server database connections and other database operations (add, delete, change search), is a good learning materials. Also as a collection. Including some of the settings dialog box in the dialog background ........)

VC项目开发全程实录（书籍光盘)非常实用的资源！(VC project development throughout Record (Book CD) is very useful resource!)

Oracle10G数据库中利用JOB的定时机制创建新的数据库分区，以存放新添加的数据。(Oracle10G database using JOB' s timing mechanism to create a new database partition to store the newly added data.)