June 2001
Intermediate to advanced
620 pages
19h 29m
English
Content preview from ADO: ActiveX Data ObjectsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
This chapter has explained how to access and use ActiveX Data Objects with the five most commonly used Microsoft development languages: Visual Basic, Visual C++, Visual J++, VBScript, and JScript. The following is a list of key points:
Visual Basic is an easy language with which to develop ActiveX Data Object applications due to its minimal setup.
Visual C++ offers a keyword,
#import, to help create type library information for ADO enumerations (groups of constants) and interfaces. In addition, OLE must be instantiated before any ActiveX Data Objects are created at all.Visual J++ uses the Java Type Library Wizard to create type library information for ADO enumerations and interfaces.
VBScript and JScript can be used through Active Server Pages to provide requesting clients with static HTML pages based upon an OLE DB data source.
The interface for ActiveX Data Objects is extremely similar throughout all of the languages we have looked at, making it easy to move your skills from one language to another.
The next chapter in this book, Chapter 4, deals with the most fundamental object within ADO, the Connection object. This object is used to create a session with a data source and to create different views with the data source’s data.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.