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The data of a view is not physically stored, but derived from one or more tables.
True the data of a view is not physically stored
Describe the shadow paging technique.
Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abs
Advantages And Drawbacks Of Ddbms There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Explain Instance and schemas? Instances and schemas: Databases changes over time as the information is deleted and inserted. The collection of information stored in database
There are a number of possible solutions to the open ended brief. One of the simple ones is shown here without the PKs and FKs. It is important to think of how a number of tasks
why shadow copy technique is used?
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
1. Based on the dependency diagram, create a database whose tables are in at least 2NF, showing the dependency diagram for each table (as shown in class). Label the types of depe
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