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Describe the functions and features of foreign key? Foreign Key : The primary key of one file or table that is implanted in another file or table to implement the relationships
Which two files are used during operation of the DBMS? Data dictionary and transaction log are two files used during operation of the DBMS.
Which two tools are used to administer users for Active Directory?
In a relational model how relations are termed? In a relational model, relations are termed as tables. (The term ‘relation’ is the technical name of the ‘table’ in RDBMS)
online eductional management system ke diagram
Making Common Behaviour Abstract Let us define abstraction "Abstraction means to focus on the necessary, inherent aspects of an entity and ignoring its accidental features". O
Consistency: This property makes sure that a complete transaction implementation takes a database from one consistent state to another consistent state. If the transaction fails e
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
explain normalisation
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