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Define Cascading rollback
The phenomenon where a single transaction failure leads to a series of transaction rollbacks is known as Cascading rollback.
write short note on mobile database
Explain weak and strong entity sets? Weak and Strong entity sets: A physically powerful entity set has a primary key. All tuples in the group are distinguishable through that k
statical data
Type of database technology
waht is a repeating group?
word limit no mentioned
Which is a legal expression in SQL? SELECT NAME FROM EMPLOYEE is a legal expression in SQL.
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
Lossless-Join Decomposition Let us show an intuitive decomposition of a relation. We require a better basis for deciding decompositions since intuition may not always be r
What is Information System?
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