Overview of database recovery techniques in DBMS
Overview of database recovery techniques · Database Recovery is a process of recovering or restoring data in the database when a data loss occurs or data gets deleted by system crash, hacking, errors in the transaction, damage occurred coincidentally, by viruses, sudden terrible failure, commands incorrect implementation, etc · Reco…
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Functional Dependency in DBMS
Functional Dependency in DBMS Functional Dependency is also known as “FDs” or a relationship. A relationship:- An attribute can determine other attributes functionally. The first attribute does not use for computing or calculating the value of the second attribute but it searches the value of the tuple corresponding to the first a…
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Inference Rule (IR) in DBMS
Inference Rule (IR) in DBMS: Armstrong's axioms in database management systems were developed by William w. Armstrong in 1974. Armstrong's axioms are the basic inference rule, used to conclude functional dependencies on a relational database. It provides a set of rules for a simple reasoning technique in functio…
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