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What is called remapping of bad sectors? If the controller detects that a sector is injured when the disk is initially formatted, or when an attempt is made to write the secto
Explain recovery process after system failure using checkpoint. Ans: Checkpoint scheme or method is an extra component of the log based recovery system. This scheme is used to
how to calculate frequency count of algorithm
WHY SHOULD NULL IN A RELATION BE AVOID AS possible?
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Write a short note on QBE? Stands for "Query By Example." QBE is a feature involved along with various database applications which gives user-friendly techniques of running da
Complete replication: It implies maintaining of a whole copy of the database at every site. Thus, the reliability & availability and performance for query response are maximized.
Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
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