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What functions does a data dictionary perform?
In a (DBMS)data management system, the principal functions performed by the data dictionary are
Java program for horrizontal fragmentation in distributed database
Types of Data fragmentation
What is inheritance? Inheritance is an object orientation concept that allows reusability of code / design. Basic sense of inheritance is that if one class is predefined than a
What function divides one numeric expression by another and returns the remainder? MOD function divides one numeric expression by another and returns the remainder.
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
What is Structured Query Langauge (SQL)? SQL is a powerful set-oriented language which was formed by IBM research for the databases that adhere to the relational model. It havi
XYZ is a large chain of home entertainment rental over 100 stores distributed over all states in Australia. XYZ lends entertainment products such as movies, TV shows and games on v
Explain Two phase locking protocol A transaction is consider as to follow the two-phase locking protocol if all locking operations precede the first unlock operation in the tra
List some security violations (or) name any forms of malicious access. A) Unauthorized reading of data B) Unauthorized modification of data C) Unauthorized destruction of
Define Timestamp ordering Ans In timestamp-based method, a serial order is made among the concurrent transaction by assigning to every transaction a unique nondecreasing number
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