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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
what do you mean by consistency in rdbms?
Database Recovery And Security Introduction In this part we will introduce two main issues relating to database management systems. A computer system suffers from dissi
What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
WHAT IS DATABASE TECHNOLOGIES
Describe Graphical User Interface? Graphical User Interfaces (GUIs) - A GUI typically displays a schema to the user in diagrammatic form. The user can then specify a query th
Define the notation for classes and atrributes The notation for class, attribute, and operations are shown below: Figure: Class with attributes and operations A
Explain TPS concurreny executions stating their advantages in online business advancement
A student entity type has the following attributes,name..
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
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