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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
Some disadvantages of File Oriented System ?
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
#floating point representation is used to store
Define the Traditional System Analysis and Design Traditional System Analysis and Design (SAD) have three basic life cycle models. A typical software lifecycle consists of the
State as Location within a Program In this traditional approach, location of control inside a program totally defines the program state. Any finite state machine may be implem
In an organisation various projects are undertaken. Each projects can employ one or more employees. Every employee can work on one or more projects. Each project is undertaken on
Why is need for the multiple access paths?
Secondary Indexes Let consider the student database and its clustering index and primary (only one will be applicable at a time). Now consider the state when the database is to
Define According to the levels of abstraction, the schema at the intermediate level is called Ans: As per to the levels of abstraction, the schema at the intermediate level is
Example :; transfers transfer_amount from x's account to y's account ; Supposes x&y both accounts exist TRANSACTION (x, y, transfer_amount) Start transaction IF X AND Y
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