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What is meant by log-based recovery?
The most widely used structures for recording database changes is the log. The log is a sequence of log records, recording all the update activities in the database. There are various types of log records.
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
What is called query processing? Query processing refers to the range of activities included in extracting data from a database.
It is not possible to make an ABAP/4 program, which having only Subroutines. False. We can make ABAP/4 program, which having only Subroutines.
In an E-R diagram an entity set is represent by? In an E-R digram entity set is represted by rectangle.
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
a project based on normalization with first, second and third normalization. There need to be a diagram also
Consider employee (e_no, e_name, e_salary, d_code), dept (d_code, d_name) and dependent (depndt_name, e_no, relation). Show the names of employees in purchase and accounts departm
BCNF Boyce-Codd Normal Form A relation schema R is in BCNF if it is in 3NF and accepts an additional constraint that for every FD X A, X has to be a candidate key. If a relati
differences between a classified catalog and a dictionary catalog
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