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What is the use of rename operation?
Rename operation is used to rename both relations and an attributes.
It uses the as clause, taking the form:
Old-name as new-name.
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
Explain the paths in the association network We can analyze use of paths in the association network as given below: Calculate each operation Find associations whic
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Design Of Distributed Databases: The distributed databases are mainly relational at local level. So a local database schema is the similar as that of a centralised database design
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
What are the various symbols used to draw an E-R diagram (any 3)?
Create centralized relational database using Top down method- Construction of Logical Model: Translation EERD into Relational Schema: Use the 8 steps algorithm of converting EERD
What are the drawbacks of File Oriented System in details?
Design a database for an airline.The database must keep track of customers and their reservations,flights and their status, seat assignment on individual flights and, the schedule
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