【免费】数据库基础资源-CSDN文库

共47个文件

h：11个

cpp：10个

obj：6个

需积分: 0 14 浏览量更新于2008-07-16 收藏 1.95MB RAR 举报

数据库基础是IT领域中至关重要的一个部分，尤其是在软件开发中，数据库被广泛用于存储、管理和检索数据。在本篇中，我们将重点讨论“vc数据库基础编程例子”所涵盖的主题，特别是涉及ODBC（Open Database Connectivity）的部分。 ODBC是微软提出的一种数据库应用程序编程接口（API），它提供了一个标准的方法来访问不同类型的数据库系统。通过ODBC，开发者可以使用统一的接口，编写一次代码，就能在多种数据库上运行，大大提高了软件的可移植性。在VC++（Microsoft Visual C++）环境下进行数据库编程，通常会利用MFC（Microsoft Foundation Classes）库中的CDatabase、CRecordset等类，这些类提供了对ODBC的封装，使得操作数据库变得更加简单。下面，我们来详细了解一下如何在VC++中使用ODBC进行数据库编程。 1. **设置ODBC数据源**：我们需要在系统中配置ODBC数据源。这可以通过控制面板的“管理工具”中的“ODBC数据源管理器”完成。在这里，我们可以添加新的数据源，选择对应的数据库驱动程序（如SQL Server、Oracle、MySQL等），并输入数据库连接信息（如服务器地址、数据库名、用户名和密码）。 2. **创建数据库连接**：在VC++程序中，我们使用CDatabase类创建数据库连接。实例化CDatabase对象，并调用其Open方法，传入之前配置的数据源名称，即可建立连接。例如： ```cpp CDatabase db; db.OpenEx("DSN=MyDataSource", CDatabase::noOdbcDialog); ``` 3. **执行SQL查询**：使用CDatabase对象，我们可以执行SQL语句。例如，执行SELECT查询，可以使用ExecuteSQL方法： ```cpp db.ExecuteSQL("SELECT * FROM MyTable"); ``` 4. **使用CRecordset类**：为了方便处理查询结果，通常我们会使用CRecordset类。它可以动态地表示查询结果集，并提供遍历记录、编辑记录、插入新记录和删除记录的能力。创建CRecordset对象，传入SQL查询语句，然后打开它： ```cpp CRecordset rs(&db); rs.Open(CRecordset::forwardOnly, "SELECT * FROM MyTable", CRecordset::readOnly); ``` 5. **操作记录**：通过CRecordset对象，可以获取当前记录的字段值，移动到下一条记录，或者进行更新、插入和删除操作。例如，获取当前记录的某个字段： ```cpp CString value = rs.GetFieldValue("FieldName"); ``` 6. **关闭连接**：完成数据库操作后，别忘了关闭数据库连接和记录集： ```cpp rs.Close(); db.Close(); ``` 7. **异常处理**：在数据库编程中，错误处理是非常重要的。VC++的MFC库提供了CDBException类来处理ODBC相关的异常。通过捕获CDBException，我们可以处理数据库操作中的错误。在“vc数据库基础编程例子”中，你可能会遇到如何设计数据库模型、如何优化SQL查询、如何处理并发问题以及如何实现事务管理等实际问题。通过学习和实践，你将能够熟练掌握VC++环境下的ODBC数据库编程，为今后的项目开发打下坚实的基础。

收起资源包目录

Ex_ODBC.rar （47个子文件）

Ex_ODBC

StdAfx.cpp 209B

Ex_ODBCSet.h 1KB

Ex_ODBC.h 1KB

Ex_ODBC.clw 3KB

Ex_ODBC.cpp 4KB

Ex_ODBCView.h 2KB

Ex_ODBC.ncb 89KB

rowcursor.cpp 500B

rowcursor.h 1KB

MainFrm.h 2KB

Ex_ODBCDoc.cpp 2KB

msflexgrid.cpp 29KB

font.h 1KB

Ex_ODBC.opt 53KB

Ex_ODBC.dsp 5KB

Debug

Ex_ODBCDoc.obj 18KB

vc60.pdb 364KB

Ex_ODBCSet.obj 15KB

Ex_ODBC.pch 5.46MB

vc60.idb 217KB

Ex_ODBC.obj 23KB

Ex_ODBC.exe 116KB

Ex_ODBC.pdb 481KB

Ex_ODBCView.obj 21KB

Ex_ODBC.res 8KB

MainFrm.obj 19KB

StdAfx.obj 105KB

Ex_ODBC.ilk 357KB

picture.cpp 1KB

Ex_ODBC.rc 13KB

ReadMe.txt 4KB

msflexgrid.h 7KB

StdAfx.h 1KB

Ex_ODBCView.cpp 3KB

Ex_ODBCDoc.h 2KB

MainFrm.cpp 2KB

Resource.h 868B

font.cpp 2KB

Ex_ODBCSet.cpp 2KB

Ex_ODBC.plg 1KB

picture.h 1KB

res

Ex_ODBC.rc2 399B

Ex_ODBC.ico 1KB

Ex_ODBCDoc.ico 1KB

Toolbar.bmp 2KB

Ex_ODBC.dsw 539B

Ex_ODBC.aps 45KB

资源推荐

资源预览

资源评论

======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : Ex_ODBC ======================================================================== AppWizard has created this Ex_ODBC application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your Ex_ODBC application. Ex_ODBC.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. Ex_ODBC.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CEx_ODBCApp application class. Ex_ODBC.cpp This is the main application source file that contains the application class CEx_ODBCApp. Ex_ODBC.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. Ex_ODBC.clw This file contains information used by ClassWizard to edit existing classes or add new classes. ClassWizard also uses this file to store information needed to create and edit message maps and dialog data maps and to create prototype member functions. res\Ex_ODBC.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file Ex_ODBC.rc. res\Ex_ODBC.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// For the main frame window: MainFrm.h, MainFrm.cpp These files contain the frame class CMainFrame, which is derived from CFrameWnd and controls all SDI frame features. res\Toolbar.bmp This bitmap file is used to create tiled images for the toolbar. The initial toolbar and status bar are constructed in the CMainFrame class. Edit this toolbar bitmap using the resource editor, and update the IDR_MAINFRAME TOOLBAR array in Ex_ODBC.rc to add toolbar buttons. ///////////////////////////////////////////////////////////////////////////// AppWizard creates one document type and one view: Ex_ODBCDoc.h, Ex_ODBCDoc.cpp - the document These files contain your CEx_ODBCDoc class. Edit these files to add your special document data and to implement file saving and loading (via CEx_ODBCDoc::Serialize). Ex_ODBCView.h, Ex_ODBCView.cpp - the view of the document These files contain your CEx_ODBCView class. CEx_ODBCView objects are used to view CEx_ODBCDoc objects. //For an ODBC database app: Ex_ODBCSet.h, Ex_ODBCSet.cpp - the recordset These files define and implement the recordset class CEx_ODBCSet, which performs database query and collection. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named Ex_ODBC.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, and your application is in a language other than the operating system's current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don't do this, some of the UI elements of your application will remain in the language of the operating system. /////////////////////////////////////////////////////////////////////////////