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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.
Lost Updates : Suppose the two transactions T3 and T4 run simultaneously and they happen to be interleaved in the following way (suppose the initial value of X as 10000):
You have a friend that runs a motor bike club that holds racing events at various venues on weekends, on a monthly basis. Some venues are private race tracks and some are dirt trac
Need For Distributed Database Systems A distributed database is a set of database kept on multiple computers that appears to applications as a one database. As a result, an app
Question (a) Concurrent access to data from a database is a normal part of application program usage. Describe three approaches to concurrency control (b) Distinguish among
it can be possible to create any table without primary key
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
Horizontal Fragmentation- Horizontal fragmentation groups together the tuples in a relation that are collectively used by the main transactions. A horizontal fragment is produced b
A student entity type has the following attributes,name..
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
In this practical assignment, we will run through a complete database application development cycle, starting with the schema design, from an initial data import to database applic
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