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Mention the type of constraints we can specify in the CREATE command of DDL.
The type of constraints that can be specified are as follows:-
PRIMARY KEY, NOT NULL, UNIQUE, FOREIGN KEY, CHECK.
difference between internal schema and external schema in DBMS
Let consider the given partial relation EMP. Let us make some sub-queries for them EMPNO ENAME JOB SAL DEPTNO 7566
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
What are the objectives of query processing? Ans: The objectives of query processing is to transform a query written in a high level language into a accurate and efficien
What is SQL Server Agent? SQL Server agent plays a significant role in the day-to-day tasks of a database administrator (DBA). It is often overlooked as one of the major tools
State the definition of association An association is a structural relationship which specifies that objects of one thing are connected with objects of another. In UML, asso
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
The Database Approach In order to overcome the limits of a file system, a new approach was needed. Hence a database approach emerged. A database is a persistent collection of
write on the various type of relationalkey
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