QUESTIONS ON THIRD NORMAL FORM To solve the question on 3 NF, we must understand it’s both definitions: Definition 1: A relational…
DBMS Tutorial
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SQL Aggregate Functions SQL aggregation function is used to perform the calculations on multiple rows of a single column of a table.…
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Static Hashing In static hashing, the resultant data bucket address will always be the same. That means if we generate an address…
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Denormalization in Databases When we normalize tables, we break them into multiple smaller tables. So when we want to retrieve data from…
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Keys Keys play an important role in the relational database. It is used to uniquely identify any record or row of data…
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QUESTIONS TO IDENTIFY NORMAL FORM To solve the question to identify normal form, we must understand its definitions of BCNF, 3 NF,…
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SQL Clauses The following are the various SQL clauses: 1. GROUP BY SQL GROUP BY statement is used to arrange identical data…
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Testing of Serializability Serialization Graph is used to test the Serializability of a schedule. Assume a schedule S. For S, we construct…
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Difference between DBMS and RDBMS Although DBMS and RDBMS both are used to store information in physical database but there are some…
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Database Language A DBMS has appropriate languages and interfaces to express database queries and updates. Database languages can be used to read,…