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- DAOTable--DAO Database, TableDef, and QueryDef Creation
-
- -----------------------------------------------------------------------
- The information in this article applies to:
-
- - The Microsoft Foundation Classes (MFC), included with:
- - Microsoft Visual C++, 32-bit Edition, version 4.0
- -----------------------------------------------------------------------
-
- SUMMARY
- =======
-
- The DAOTable sample demonstrates using the MFC DAO classes to create
- common database objects: Databases, Tables, Queries, Fields, and
- Indexes. This dialog-based application maps the properties of these
- objects to controls the user can set and/or view. The program source
- code is organized so that most database interaction is isolated from
- the user interface code to ease finding examples of how to use MFC DAO.
-
- In addition to demonstrating the use of the MFC DAO classes, this
- sample can be a useful tool for creating simple Access databases.
- You can create MDB files from scratch, create and delete tables and
- queries, add and delete fields and indexes in the tables, and modify
- existing queries.
-
- The following files contain the code which performs the database
- operations. Additional files in the project provide the user
- interface and high level database manipulation.
-
- QUERYDEF.CPP, .H -- functions to create and use queries
- TABLEDEF.CPP, .H -- functions to create and use tables
- FIELD.CPP, .H -- functions to create and use fields
- INDEX.CPP, .H -- functions to create and use indexes
- DATABASE.CPP, .H -- functions to create and use databases
-
- To use this code and the MFC DAO classes you must have version
- 4.0 or greater of Visual C++.
-
- To get the code for this sample, download DAOTBL.EXE, a self-
- extracting file, from the Microsoft Software Library (MSL) on the
- following services:
-
- NOTE: The file must be decompressed by typing "DAOTBL.EXE -d".
-
- - CompuServe
- GO MSL
- Search for DAOTBL.EXE
- Display results and download
-
- - Microsoft Download Service (MSDL)
- Dial (206) 936-6735 to connect to MSDL
- Download DAOTBL.EXE
-
- - Internet (anonymous FTP)
- ftp ftp.microsoft.com
- Change to the SOFTLIB\MSLFILES directory
- Get DAOTBL.EXE
-
- MORE INFORMATION
- ================
-
- The MFC DAO classes provide a means of directly using the Jet Database
- Engine. While Visual C++'s wizards automatically generate code that
- will create and open recordsets for you based on implicitly created
- database and workspace objects, the code they provide does not
- demonstrate creating and manipulating MFC DAO objects directly. With
- MFC DAO classes you can create the majority of DAO objects and set
- their properties.
-
- This sample demonstrates using the MFC DAO classes to create and use
- the following DAO objects: Databases, Tables, Queries, Fields, and
- Indexes. Exception handling with both MFC exception macros and the C++
- exception mechanism is also shown. Further, DAO exceptions are put to
- use in detecting the existence of objects in the DAO collections.
-
- Listed below are all the files in the project (except those which are
- common to all Visual C++ projects). Each file is shown with the type
- of components it contains and a brief description
-
- ADDQYDLG.CPP - USER INTERFACE - query definition dialog
- ADDQYDLG.H
- DAOTABLE.CPP - APPLICATION - main application objects
- DAOTABLE.H
- DAOTDLG.CPP - USER INTERFACE - main dialog
- DAOTDLG.H
- DATABASE.CPP - MFC DAO - database specific functions
- DATABASE.H (also demonstrates C++ exception handling)
- ADDIXDLG.CPP - USER INTERFACE - add indexes dialog
- ADDIXDLG.H
- ADDTBDLG.CPP - USER INTERFACE - table definition dialog
- ADDTBDLG.H
- FIELD.CPP - MFC DAO - field specific functions
- FIELD.H
- LISTCTRL.CPP - USER INTERFACE - derived CListCtrl class
- LISTCTRL.H
- INDEX.CPP - MFC DAO - index specific functions
- INDEX.H
- QUERYDEF.CPP - MFC DAO - querydef specific functions
- QUERYDEF.H
- TABLEDEF.CPP - MFC DAO - tabledef specific functions
- TABLEDEF.H
- ADDDBDLG.CPP - USER INTERFACE - database definition dialog
- ADDDBDLG.H
-
-
- REFERENCES
- ==========
-
- For more information about the MFC DAO classes, refer to the on-line
- help for Visual C++ 4.0. For additional documentation on DAO, refer to
- the help files in the DAO SDK which is provided on the VC++ 4.0 CD-ROM.
-