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Draw the database using the ER approach and then make the tables accordingly. Populate the tables so that every table have at least 10 tuples. Then using Java and SQL, execute the following functionality:
1. Insert a new user, make sure that every email can be registered at most once.
2. Delete an existing user;
3. Update an existing user by any attribute. Some easy GUI interfaces are expected for every functionality.
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
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
external and internal mapping with examples
Why containment is important in oosystems? Containment is an significant concept in oosystems because it allows dissimilar users to view data at different granularities.
In object oriented design, which steps must designer take to adjust inheritance? To readjust inheritance following steps should be taken: i) Rearrange and adjust the classe
Demonstrate the Design of associations During object design phase we must design a strategy to implement associations. Association may be unidirectional or bi-directional. Wha
Create centralized relational database using bottom up method. (a) Recognize a single un-normalized relation for the above scenario. (b) Recognize the primary key for
explain in detail about crash recovery
Order by clause By using this rows can be sorted It is used in the last portion of select statement By default it gets ascending order DESC: is used
wh
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