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...Rdbms important questions unit i what is database explain the advantages of dbms over file oriented system evolution systems various types data models in db logical architecture levels abstraction define dba functions goals relational model and constraints integrity about er or diagram detail with example relationship degree relationships attribute different attributes entity strong weak set how to transfer conceptual into generalisation specialisation aggregation discuss role convert ii normalization normal forms de functional dependency transitive organization methods sequential organisation indexed hashed redundancy are problems associated multikey need for multiple access paths b trees iii table definition sql abut schema help ddl commands examples dml manipulation operators nested queries joins view differentiate tables views client server a sequence an short answer query arithmetic group by having clause iv transaction its properties log lock locks two phase locking pl granularit...