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Conversion of entity sets: I) For every strong entity type E in the ER diagram, we make a relation R containing all the easy attributes of E. The relation R pri
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
how can apply joins on table
E-R Model This data model is based on real world that consists of basic objects named entities and of relationship among these objects. Entities are illustrated in a database
(a) Why did SAP introduce the extended star schema?
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vertical fragmentation
Define Specialisation and generalization in brief? Specialisation / generalization: Generalization or Specialization represents the is a relationship set, an necessary element
With the help of an example display how records can be deleted and updated in QBE. (i) Increase Pay_Rate of employees along with the skill of ‘cook' by 10%. (ii) Delete employee
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