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What are the general transformation rules, What are the General Transformat...

What are the General Transformation Rules for Relational operations?  Ans: The transformation rules transform one relational algebra expression to AN EQUIVALENT ONE  1. E

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Consider a systems development project with the following data Activity                                Duration (weeks)        Precedence Relationship 1. Software design

Sequential file organisation, Sequential File Organisation The most nec...

Sequential File Organisation The most necessary way to organise the collection of records in a file is to use sequential Organisation. Records of the file are stored in series

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Explain TPS concurreny executions stating their advantages in online business advancement

Design of distributed databases, Design Of Distributed Databases: The dist...

Design Of Distributed Databases: The distributed databases are mainly relational at local level. So a local database schema is the similar as that of a centralised database design

What is the difference between primary key and a unique key, What's the dif...

What's the difference between a primary key and a unique key? Both primary key and unique key enforces uniqueness of the column on which they are explained. But by default prim

Describe integrity constraints, Describe integrity constraints? Integr...

Describe integrity constraints? Integrity Constraints - A database is just as excellent as the information stored in it, and a DBMS must therefore help avoid the entry of inc

Anomalies, define anomalies and different types of anomalies with example

define anomalies and different types of anomalies with example

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