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Which operations need the participating relations to be union compatible? A UNION, INTERSECTION and DIFFERENCE operations need the participating relations to be union compatibl
how to prepare a data dictionary for online examination system for certified courses?
How does the two phase protocol ensure serializability in database schedules? Ans: A transaction is termed to follow the two-phase locking protocol if all locking operations
Ways for Selecting Data Structure Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. Th
Need 2 projects completed in 3NF format.
Compare the two log-based recovery schemes in terms of ease of implementation and overhead cost. Ans: There are two types of log based recovery techniques: deferred update
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
Which database object does not physically exist? A view database object does not physically exist.
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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