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Define- relational algebra.
The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relation as output.
What is a candidate key? Minimal super keys are known as candidate keys.
Whenever the LIMIT clause will be used? LIMIT is used for the following kinds of problems: 1) Answering questions about first or last and largest or smallest 2) Splitting
er diagram of sport
what are the topics in data management
WHAT IS SQL
E-R model uses this symbol to represent weak entity set ? A Doubly outlined rectangle symbol is used to represent weak entity set.
About Attribute inheritance
What is Derived and stored Attribute? Derived and Stored Attribute - In a few cases, two or more attribute values are associated, for example, Age and BirthDate attributes of a
These permit the user to unload a database or parts of a database and reload the data on the similar machine, or on another machine in a dissimilar location. This can be useful in
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
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