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Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
What is an ER diagram? Why is it used in Database management system (DBMS)?
write on the various type of relationalkey
What is inheritance? Inheritance is an object orientation concept that allows reusability of code / design. Basic sense of inheritance is that if one class is predefined than a
East Coast Aquarium Relational Database
Create centralized relational database using Top down method- Construction of Logical Model: Translation EERD into Relational Schema: Use the 8 steps algorithm of converting EERD
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
Normal 0 false false false EN-IN X-NONE X-NONE
What is aggregate function? Briefly describe it? Aggregate functions are functions that take a collection of values as input and return a one value. SQL offers 5 built-in aggre
Explain the Natural join Natural join is a binary operator which is written as (R* S) in which R and S are relations. The effect of the natural join is the set of all combinati
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