(a) Discuss the advantages and disadvantages of hierarchical databasemanagement system in comparison with RDBMS. Discusstypes of applications suitable for hierarchical DBMS and RDBMS.
(b) Define the two principal integrity rules for the relational model.Discuss why it is desirable to enforce these rules.
(b) Define the two principal integrity rules for the relational model.Discuss why it is desirable to enforce these rules.
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