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Write short notes on relational constraints? Relational Constraints are: 1. NOT NULL 2. Unique 3. Primary key 4. Foreign key 5. Table check
Automated system for appointment with sms and call confirmation with service providers and user has to be initiate automatically. After selecting time and date to use service, s
PHYSICAL DBMS ARCHITECTURE The physical architecture defines the software components used to process and enter data, and how these software components are related and interc
explain equi-join using illustration
What is substitutability? Any method of a class-say A can equally well be adjured with any object belonging to any subclasses B of A. This characteristic leads to code reuse, a
ddlc
In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.
discuss the array implementation of a stack.
define lock conversion
The Maximum no of key fields that can be used in a header is?? 50
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