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What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
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
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
What is the need of a log in a DBMS? Briefly describe the various types of records that are normally present in a log. Ans: The system log, which is generally writt
prototype of a distributed information system for a national car part retail outlet chain.
Give some encryption techniques? A) DES B) AES C) Public key encryption
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
notes about update opreation
what is the need of a log in dbms
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