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Super keys of a relation can have extra attributes. Candidate keys are minimal super key, i.e. such a key have no extraneous attribute. An attribute is known as extraneous if even
Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
A database is to be constructed to remain track of the teams and games of a sport league. A team has a number of players, not all of whom participate in every game. It is desired
find a name whose address is erode from student table
Clustering Indexes It may be an excellent idea to keep data of the students in the order of the programme they have registered as most of the data file accesses may need studen
Which is the properties of entities? Attributes is the properties of entities.
Explain the components of Database System in details.
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
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