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Define the categories of SQL Statements?
1) Statements that don't return a result set. This statement class includes
INSERT, DELETE, and UPDATE.
2)Statements that return a result set such as SELECT, SHOW, EXPLAIN, and
DESCRIBE.
In E-R Diagram how derived attribute are represented ? In E-R Diagram By Dashed ellipse derived attribute are represented.
In an organisation various projects are undertaken. Each projects can employ one or more employees. Every employee can work on one or more projects. Each project is undertaken on
Desirable Properties Of Decomposition Decomposition is a process of dividing a relation into its projections that will not be disjoint. Please remind the Relational projection
Explain the database Planning Project ?
differences between a classified catalog and a dictionary catalog
Describe Participation Constraints? Participation Constraints - The participation constraint exacts whether the existence of an entity depends on its being related to another
Hardware failure : Hardware failures are the failures when some disk or hardware chip fails. This may result in loss of data. One such trouble can be that a disk gets damaged and
Consider the subsequent relations along with keys underlined Street (name, location, city) House (number, street_name) Lives (name, house_number) Define the above relations
why shadow copy technique is used?
I need some help with my normalization database homework.
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