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Limitations of File Based System
The file-based system has some limitations. The limitations are listed as follows:
Besides the above, the maintenance of the File Based System is complex and there is no provision for security. Recovery is non-existent or inadequate.
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
Define instance and schema? Instance: Collection of data kept in the data base at a particular moment is known as an Instance of the database. Schema: The o
project on dbms
i need help for assignment ..
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
Desirable Properties Of Decomposition Decomposition is a process of dividing a relation into its projections that will not be disjoint. Please remind the Relational projection
What is DDL? Make a list of commands with short description used in DDL Ans: Data Definition Language that is abbreviated as DDL is a computer language for defining data struct
What do you understand by a view? What does WITH CHECK OPTION clause for a view do? - A view is a virtual table which comprises fields from one or more real tables. - It is
Define Hash files organization a. Hashing includes computing the address of a data item by calculating a function on the search key value. b. A hash function h is a functi
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