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> From: Dave Odom > > Yes, a truly relational > database must only be accessed via one language, in all cases This statement is 100% incorrect. Rule five: "5. Comprehensive data sublanguage rule. A relational system may support several languages and various modes of terminal use (for example, the fill-in-the-blanks mode). However, there must be at least one language whose statements are expressible, per some well-defined syntax, as character strings, and that is comprehensive in supporting all of the following items: Data definition View definition Data manipulation (interactive and by program) Integrity constraints Authorization Transaction boundaries (begin, commit, and rollback)" Dr. Codd specifically stated that multiple languages are allowed. How you handle this will be very telling. Joe
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