Describe the 3-level ansi-sparc architecture and discuss, Ask an Expert

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Describe the 3-level ANSI-SPARC architecture and discuss how the use of this will promote data independence to save time in the long run. Define Data Independence. What is meant by 3-level architecture and is this the same as the 3-level ANSI SPARC architecture? Describe the roles of a data administrator (DA) and a database administrator (DBA).

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