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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Which data type can store unstructured data? Raw data type can store unstructured data.
how can apply joins on table
WHAT IS DATABASE TECHNOLOGIES
what is RDBMS? how it works? good example.
Reflects organisational structure: Many organizations are distributed over various locations. If an organisation has many offices in dissimilar cities, databases used in such an ap
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
Use again the GE Flight Quest Data and build on the work done for homework 1 and 2. The goal is to create a classification model which classifies flights into "on-time" (you can de
Define the following constraints for the table client. (i) BAL_DUE must be at least 1000. (ii) NAME is a unique key. (i)ALTER TABLE CLIENT ADD CONSTRAINT CLIENT_BAL_DUE_C1
a) Distinguish between ‘database' and ‘Database Management Systems (DBMS)'. b) List and briefly describe five potential benefits of the database approach compared to conventio
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
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