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众所周知,软件开发离不开对数据的访问。数据访问在整个软件开发的三层构架中属于数据层,是其它两层的基础。没有了它,存储的数据变的毫无意义。与此同时,数据访问的效率...
众所周知,软件开发离不开对数据的访问。数据访问在整个软件开发的三层构架中属于数据层,是其它两层的基础。没有了它,存储的数据变的毫无意义。与此同时,数据访问的效率将直接影响到软件的质量。一个数据访问缓慢的系统是客户无法容忍的。一个好的系统必然有一个高效的数据访问方法。由此可见,数据访问在软件开发过程中是非常重要的。如果能统一对数据的访问方法,那么一切有关数据访问方面的问题都可以得到解决。我的系统将可以面向所有的数据源,甚至是未来将会出现的数据源。 预期结果 实现对SQLServer,ODBC,OLEDB数据源以及工业中的Citect,IFix监控软件数据源的统一访问。 开发环境: Microsoft Windows2000开发平台 开发工具: Microsoft Visual C++.NET 数据源: Microsoft SQLServer2000,Citect,Ifix,ODBC 文件说明: DAServer2.dll是一个统一数据访问平台。提供OLEDB标准接口。用户可对其进行访问。 SQLServerProvider.dll是针对SQLServer数据源的提供程序。 config.ini是系统配置文件。- Data access in the entire software development framework is a three-tier data layer, the other is a two-tier basis. Without it, the data storage change meaningless. Meanwhile, the efficiency of data access will directly affect the quality of the software. A slow data access system is the customer can not be tolerated. A good system will be an efficient data access methods. This shows that access to data in the software development process is very important. If reunification of data
- 2022-08-07 12:26:37下载
- 积分:1
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vb+access做的办公系统,没有使用sql server 2
vb+access做的办公系统,没有使用sql server 2-vb+ access office systems do not use sql server 2000
- 2022-06-27 11:23:24下载
- 积分:1
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(1) main.prg system initialization code wset talk offwset safety offwclose allws...
(1)main.prg 系统初始化代码
wset talk off
wset safety off
wclose all
wset talk off
wset near on
wset exact on
w*---设置运行环境
wset ansi on
wset excl off
wset safety off
wset dele on
wset century on
wset date to YMD-(1) main.prg system initialization code wset talk offwset safety offwclose allwset talk offwset near onwset exact onw*- set the runtime environment wset ansi onwset excl offwset safety offwset dele onwset century onwset date to YMD
- 2022-03-23 04:54:02下载
- 积分:1
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the book introduces the Delphi7 for database application systems development. Th...
本书主要介绍在Delphi7中进行数据库应用系统的开发.前3章简要介绍数据库开发的基本知识,包括数据库开发工具、字段对象、数据查询与显示、SQL语言应用、存储过程、报表应用与开发、dbExpress编程和ADO编程等。第4章通过编程实例来说明通过数据库引擎(BDE)访问数据库的编程方法。第5章通过编程实例分别使用SQL Server数据库系统和Access数据库系统来说明Delphi7中SQL编程应用和ADO方法编程应用。本书对读者进行数据库应用开发具有非常衫的参考价值。本书源程序可以从中国水利水电网站-the book introduces the Delphi7 for database application systems development. The first three chapters briefed several It was developed for the basic knowledge, including database development tools, field object, data query and display. SQL applications, stored procedures, and reporting applications development, dbExpress ADO programming and other programming. Chapter 4 through programming examples to illustrate through the database engine (BDE) access to the database programming method. Chapter 5 through programming examples were used SQL Server database system and the Access database system Note Delphi7 Application Programming SQL and ADO application programming methods. Readers of the book database application development shirt with
- 2022-11-11 15:45:03下载
- 积分:1
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PowerBuilder数据窗口到Excel
powerbuilder数据窗口转EXCEL-PowerBuilder DataWindow to EXCEL
- 2022-01-26 04:51:40下载
- 积分:1
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商场VIP消费管理系统
版权所有,未经授权,不得擅自复制,作者保留所有权利。
1.本系统开发环境
(1)操作系统:win2k。
(2)数据库:A...
商场VIP消费管理系统
版权所有,未经授权,不得擅自复制,作者保留所有权利。
1.本系统开发环境
(1)操作系统:win2k。
(2)数据库:Access。
(3)编译器:j2sdk-1_4_1_02-windows-i586.exe。
-malls VIP consumption Copyright Management System, without authorization, will be allowed to copy, the author All rights reserved. 1. The system development environment (1) Operating System : win2k. (2) Database : Access. (3) compiler : j2sdk- 1_4_1_02-windows-i586.exe.
- 2022-01-28 22:19:23下载
- 积分:1
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codbcdynamic
CODBCDynamic - A class to dynamically read data from any ODBC data source动态从odbc数据源读数据的类 -CODBCDynamic-A class to dynamically read data from any ODBC data source dynamic data sources from odbc read data type
- 2022-03-31 19:10:18下载
- 积分:1
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C #编写的数据导出到Excel
C#编写的datagrid export to excel-C# prepared by the datagrid export to excel
- 2022-01-24 15:14:03下载
- 积分:1
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in VC through odbc connect to the database (regardless of the database type, ora...
在VC中通过odbc连接数据库(数据库不分种类,oraclesql server等)-in VC through odbc connect to the database (regardless of the database type, oracle sql server, etc.)
- 2022-01-30 19:19:49下载
- 积分:1
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公交管理系统下载
公交管理系统下载-transit management system download
- 2022-03-21 18:41:44下载
- 积分:1