DAO: Where Is...

  • 项目

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This article will help you locate topics of interest in the MFC DAO documentation and in the DAO Help topics. This article is organized as follows:

  • DAO Overviews

  • DAO Objects

  • Information By Topic

  • Key DAO Help Topics

Documentation for the MFC DAO classes consists of two components:

  • MFC-specific: MFC classes in the Class Library Reference and MFC encyclopedia articles in Visual C++ Programmer’s Guide. The articles all begin with the “DAO” prefix.

  • DAO-specific: Topics from the DAO Help files shipped with products such as Microsoft Office. These topics have been incorporated into the online documentation, but note that they are oriented toward the Basic programming language. They are included to provide DAO-specific details in areas where MFC neither modifies nor adds to DAO functionality.

DAO Overviews

For overviews and general information about MFC DAO, see:

DAO Objects

DAO consists of a number of objects. Here’s where to find information about each object type:

Where to find information about DAO objects

DAO Help topics MFC class MFC Help topics
Database Object DAO Database
Error Object
Querydef Object DAO Querydef
Recordset Object DAO Recordset
Tabledef Object DAO Tabledef
Workspace Object DAO Workspace

See Also   DAO Database: Using Workspaces and Databases, DAO: Creating, Opening, and Closing DAO Objects, DAO: Accessing Implicit MFC DAO Objects, DAO External: Working with External Data Sources, DAO Queries, DAO Record Field Exchange (DFX)

Information By Topic

To simplify locating the article(s) that discuss a particular topic area, use the following table:

Where to look for...

Topic Location
Action queries DAO Querydef: Action Queries and SQL Pass-Through Queries
Adding records DAO Recordset: Recordset Operations
Aggregate records DAO Recordset: Using Aggregate SQL Functions with MFC DAO Classes
Application design options DAO: Writing a Database Application
Attaching tables DAO External: Working with External Data Sources
Buffering records DAO Record Field Exchange: Double Buffering Records
Calling DAO directly Can I Call DAO or ODBC Directly?
CDaoXInfo structures DAO Collections: Obtaining Information About DAO Objects
Closing DAO objects DAO: Creating, Opening, and Closing DAO Objects
Collections in DAO DAO Collections
Console applications and DAO DAO: Database Application Design Options
Creating DAO objects DAO: Creating, Opening, and Closing DAO Objects
DAO objects not mapped to classes DAO and MFC
DAO vs. ODBC Should I Use DAO or ODBC?
Data definition language (DDL) Database Definition and Manipulation
Database engine (Jet) DAO Workspace: The Database Engine
Data types DFX Data Types in DAO Record Field Exchange: Using the DFX Functions
DBMS targets DAO: Writing a Database Application
What Data Sources Can You Access with DAO and ODBC?
Default workspace DAO Workspace: Explicitly Opening the Default Workspace
Definition of DAO What Are DAO and ODBC?
DLLs, DAO in DAO: Database Application Design Options
DAO: Using DAO in DLLs
Document/view architecture DAO: Writing a Database Application
Documentation More Information About the DAO and ODBC Classes
Double buffering records DAO Record Field Exchange: Double Buffering Records
Engine initialization DAO Workspace: The Database Engine
External data sources, list DAO External: Working with External Data Sources
Filtering recordsets DAO Queries: Filtering and Parameterizing Queries
Finding DAO Recordset: Recordset Navigation
Forms Record Views
How MFC encapsulates DAO DAO and MFC
Installing DAO Installing MFC Database Support
ISAM databases, list Database Topics (DAO)
Jet database engine DAO Workspace: The Database Engine
Multithreading and DAO DAO: Database Application Design Options
Navigating in a recordset DAO Recordset: Recordset Navigation
ODBC data sources DAO External: Working with External Data Sources
ODBC drivers ODBC Driver List
ODBC vs. DAO What Are DAO and ODBC?
Should I Use DAO or ODBC?
ActiveX controls, DAO in DAO: Database Application Design Options
Opening DAO objects DAO: Creating, Opening, and Closing DAO Objects
Parameterizing queries DAO Queries: Filtering and Parameterizing Queries
Pass-through queries DAO Querydef: Action Queries and SQL Pass-Through Queries
Performance DAO External: Improving Performance with External Data Sources
Programming model What Is the MFC Database Programming Model?
Queries DAO Queries
Querydefs DAO Querydef
Record Field Exchange (DFX) DAO Record Field Exchange (DFX)
Recordsets DAO Recordset
Scrolling DAO Recordset: Recordset Navigation
Security DAO and MFC
Seeking DAO Recordset: Recordset Navigation
SQL DAO Queries: SQL for DAO
Tabledefs DAO Tabledef
Task-oriented topics DAO: Database Tasks
Transactions DAO Workspace: Managing Transactions
Updating data DAO Recordset: Recordset Operations
Views of DAO data DAO: Writing a Database Application
When to use database classes When Should I Use the Database Classes?
Workspace, typical scenario DAO Database: Using Workspaces and Databases
Writing a database application DAO: Writing a Database Application

See Also   DAO Database: Using Workspaces and Databases, DAO: Creating, Opening, and Closing DAO Objects, DAO: Accessing Implicit MFC DAO Objects, DAO External: Working with External Data Sources, DAO Queries, DAO Record Field Exchange (DFX), Database Topics (DAO), DAO and MFC

Key DAO Help Topics

The following topics are part of DAO Help and are not MFC-specific. To use them, you must open the DAO SDK help file, which is not part of the online documentation.

  • Data Access Object Hierarchy

  • Data Access Objects and Collections Reference

  • Using Data Access

  • Trappable Data Access Errors

  • Microsoft Jet Database Engine SQL Data Types

  • Microsoft Jet Database Engine SQL Reserved Words

  • Equivalent ANSI SQL Data Types

  • SQL Aggregate Functions