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The need for three level architecture The aim of the three level architecture is to divide each user's view of the database from the way the database is physically shown.
List and also explain the dissimilar stages of DDLC ?
Guidelines for creation of table: Table name should begin with an alphabet. In table name, single quotes and blank spaces are not allowed. Reserve words of that DBM
Differentiate between natural join and outer join? Natural join is a binary operator which is written as (R * S) where as R and S are relations. The output of the natural join
What are the three data anomalies that are similarly to take place as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why n
what is Storage-Device Hierarchy question
What are the DBMS languages? Briefly explain? Data Definition language (DDL):A database schema is specified through a set of definitions expressed through a special language
Define seek time. The time for repositioning the arm is known as the seek time and it enhances with the distance that the arm is known as the seek time.
Determine Which is not a consequence of concurrent operations? Ans: Update anomaly.
Illustrate how you can use QBE to perform logical AND and OR operation
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