In today's computing environments, data exists in many formats, ranging from Access and SQL Server databases to Word documents, email messages, and many others. ADO, or ActiveX Data Objects, data-access technology simplifies use of data from multiple sources, thus freeing developers from learning data, vendor-specific API calls, and any other coding minutiae for each data format involved. With ADO, almost any data source becomes accessible in a consistent way for developers creating standalone applications, client/server applications, or ASP pages.
In this chapter, I define ADO in the historic and current context of Microsoft's overall data-access strategy and related technologies.
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