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What is the use of with clause in SQL?
The with clause gives a way of defining a temporary view whose explanation is available only to the query in which the with clause occurs.
Two Phase Locking (2PL) The two-phase locking protocol having of two phases: Phase 1 : The lock acquisition phase : If a transaction T needs to read an object, it wants to
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
What was the method in which records are physically stored in a specified order according to a key field in each record ? A method in which records are physically stored within
This assignment is worth 45% of your final grade for this module. Marks will be awarded as follows: Prototypes (wireframe and web based prototype) You are expected
Write a query that display ename annual salary and comm from emp table
what is union compatable?
What are called multilevel indices? Indices with two or more levels are known as multilevel indices.
What is a B+-Tree index? A B+-Tree index takes the form of a balanced tree in which each path from the root of the root of the root of the tree to a leaf of the tree is of the
Define Partial Key and Primary Key A partial key, also known as discriminator, is the set of attributes which can uniquely identify weak entities that are related to similar o
WHAT IS SQL
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