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What is called mirroring?
The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
what is natural join?
Problem 1. Describe the following a) Advantages of Database Systems b) Functions of a DBMS Explanation of part (a) and (b) 2. Explain the following concepts w
Explain what is DDL? DDL - Data Definition Language: statements used to define the database structure or schema. Some examples: CREATE - to create objects in the database ALT
how the string works as keyword?
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
what is correlation in nested query
Implementation and SQL Applications
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
A super key is an attribute or set of attributes used to recognize the records uniquely in a relation. For instance, in the Relation PERSON defines earlier PERSON_ID is a super
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