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What is a Name?
A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it, regardless of its contents.
Determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it is Ans: Non-Procedural DML
Explain Composite attribute in SQL ? Composite attribute: A composite attribute has many components, each of that is atomic or composite.
Determine the Other System Design Issue How to realise subsystems; through hardware or software? How is object model mapped on chosen hardware software? Mapping
What are three components of the schema architecture proposed by ANSI/SPARC? The three component schema architecture proposed by ANSI/SPARC is as given below: External sche
Authorisation Authorisation is the culmination of the administrative policies of the organisation. As the name shows, authorisation is a set of rules that can be used to verif
What is system log? What are the entries? Ans: The system log that is generally written on stable storage contains the redundant data required to recover from volatile
Why is need for the multiple access paths?
Differentiate between a subquery and a join If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are t
Define the Division Operation of Relational Algebra Let R be a relation comprising attributes (A1,...Ap,Ap+1,...An) and S comprising attributes (Ap+1,...An) DEF: Division
#questiontypes of keys examples..
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