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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Introduction and Organization
This book is organized into three parts, as described in the following sections.
Part I: Learning ADO
ADO is Microsoft’s advanced universal data-access solution, consisting of an object model-based wrapper around OLE DB, which is a technology that allows data-access functionality to different types of data sources. This allows companies such as Oracle, Microsoft, and Sybase to develop what are called “data providers,” to do just that -- provide data to the OLE DB technology. OLE DB technology can work with all kinds of data sources, including relational databases such as SQL Server or an email system such as Exchange. OLE DB and ADO can even deal with plain text files and Excel spreadsheets. Chapter 1, and Chapter 2, provide more information on ADO, related technologies, and the structure of key ADO components.
ADO adds a common programming interface to OLE DB, thus allowing developers to use existing skills with multiple languages. ADO can be used with virtually any development language that supports COM, such as Visual Basic, Visual C++, J++, JScript, and VBScript. Developing with ADO in each of these languages is discussed in Chapter 3. ADO was designed to encourage DAO and RDO developers to migrate to this new technology, without the burden of the many different objects of DAO and RDO.
ADO is a lightweight, disconnected object model, which means that it has few objects, as compared to DAO or RDO, and that the objects do not necessarily rely on each ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.