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Explain data abstraction?
Data abstraction Data abstraction is a methodology in which enables us to isolate how a compound data object is utilized from the details of how it is constructed from more primitive data objects.
why are older data models are being replaced by new data models
what is Nested relational model? Explain with examples.
triggering
What is known as clustering file organization? In the clustering file organization, records of several dissimilar relations are stored in the similar file.
, write the relational schema, and draw the new dependency diagrams. Identify the normal forms for each table structure you created
Project Description: We have purchased facebook style chat software which we are using with our site. It is prepared in PHP but the rest of the site is developed asp.net. Iss
Explain group By clause in SQL? Group By clause in SQL: The GROUP BY clause can be used in a SELECT statement to collect data across multiple records and group the results thro
Describe Application programming interface? Application Programming Interface - Commercial SQL implementations take one of the two primary techniques for involving SQL in a p
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
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