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2NF Normal Form:
A relation schema process R is in 2NF if it is in 1NF and each non-prime attribute A in R is fully functionally related on primary key. Second normal form (2NF) is a normal process needed in database normalization. 2NF was originally described by E.F. Codd in 1971. A table that is in first normal form (1NF) must accept additional criteria if it is to accept for second normal form. A table is in 2NF if and only if, it is in 1NF and no non prime attribute is related on any proper subset of any candidate key of the table.
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Normal 0 false false false EN-US X-NONE X-NONE
A Structure of a dependency diagram
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Describe log based recovery The most usably structure for recording data base modification is the LOG the log is a sequence of log records recording all the update activities i
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The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
What is a candidate key? Minimal super keys are known as candidate keys.
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