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Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
vertical fragmentation
What is Relational calculus? Relational calculus is a Non- Procedural language.
Special comparison operator used in where Clause a. between. ...and...It gives range among two values (inclusive) Example: SELECT ENAME, SAL FROM EMP WHERE SAL BETWE
differences between a classified catalog and a dictionary catalog
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
Discuss The difference between drop table R and delete from R. DROP TABLE command deletes all the records with the table definition. This command will automatically committed
Define multivalued dependency. What do understand by trivial multivalued dependency? Ans: A multivalued dependency is a full constraint among two sets of attributes in a rela
List the table modification commands in SQL? A) Deletion B) Updates C) Insertion D) Update of a view
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
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