chapter 5, Database Management System

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When is update_statistics command used, When is UPDATE_STATISTICS command u...

When is UPDATE_STATISTICS command used? - When processing of large data is done, this command is used. - Whenever large number of modification, deletions or copy takes place

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What it creates while a primary key is combined with a foreign key? It creates Parent-Child relation ship between the tables that connect them while a primary key is combined w

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What is a function group? A function group is a collection of logically related modules that share global data with every other.  All the modules in the group are contained in

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What are the different approaches for database design? There are two basic approaches for database design which are as follows: Attribute driven: It compiles a list of att

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What is the difference between a key and a superkey? Key - A key a single attribute or a combination of two or more attributes of an entity set which is used to identify one

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Demonstrate your knowledge of PL/SQL programming by writing and thoroughly testing triggers and stored procedures associated with an e-commerce application that provides security l

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What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.

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A Distributed Transaction Let us demonstrate the concept of a distributed transaction by considering a banking system having of three branches located in 3 different cities. Ev

Primary key, The primary key is selected from the

The primary key is selected from the

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