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What is transaction?
Transaction is a unit of program implementation that accesses and possibly updated several data items.
Strict 2PL :Though, this basic 2PL suffers from the trouble that it can result into loss of isolation / atomic property of transaction as theoretically speaking once a lock is rele
SET concept is used in which type of modelling? SET concept is used in Network Model.
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
An employee record has the following structure struct employee { int eno; char name[22]; float salary; char dept[10];}; (i) Calculate the record size R in bytes.
DISADVANTAGES OF RDBMS
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
Which product produces the relation that has attributes of R1 and R2 ? Cartesian product produce the relation which has attributes of R1 and R2
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
What is the difference between SQL Server 2000 complete and differential backups? A complete backup makes a copy of the whole database. A differential backup creates a copy of
Ask q“A database will be made to store information about patients in a hospital. On arrival, each patient’s personal details (name, address, and telephone number) are recorded wher
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