Appendix A. ADO and OLE-DB

Querying with the search string "database query" in MSDN brings back an inordinate number of references to technologies like DAO, RDO, ODBC, DB-LIB, and others. Except in rare, specific circumstances, you probably should not use any of these legacy data access technologies for new development. This is not to say they don't work; in many cases, they work fine, even in COM+. The reason you shouldn't base new development on them is because Microsoft has changed its data access strategy to become non-RDBMS centric. Where all the aforementioned technologies assume that you are accessing a relational database (Oracle, SQL Server, and Informix, for example), Microsoft's new data access technology, ADO, does not.

In the new nomenclature, ...

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