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What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Ask questiwhat is row indicator in database on #Minimum 100 words accepted#
write a short note on participation role? Participation role: roles are indicating in E-R diagram by labelling the lines that connect diamonds to rectangles.
Consider the relation schemas as follows. works (person name, company name, salary); lives (person name, street, city); located in(company name, city); managers (person name
Draw the precedence graph of the following schedule and determine whether the schedule is serializable. (Note that all instructions, except lock and unlock, are omitted. We assume
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
Describe the advantage of State chart Diagram A state chart represents a state machine, emphasizing flow of control from one state to other. A state machine is a behaviour whi
limitations and benefits in database tecknowlagy
courier company er-diagram
Define the terms i) DDL ii) DML DDL: Data base schema is specified by a set of definitions expressed by a special language known as a data def
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