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The ER diagram clearly showing the additional tables you have implemented.
SQL table creation scripts for the tables you have set up.
SQL scripts showing the sample data you have inserted into your database. The data should fully test the functionality of the system, as illustrated by your SQL queries (below).
SQL script for a view creation statement, together with an explanation of the rationale for this view.
SQL scripts for 8 substantial SQL queries that demonstrate some significant functionality of the system, with an explanation of their rationale/use. The SQL should be provided, together with a screen print of the output it produces. The queries you choose should illustrate the breadth and potential of the implemented database, as well as a good understanding of SQL.
SQL scripts for two PL/SQL procedures/triggers that extend the functionality of SQL and best demonstrate your understanding of PL/SQL, with an explanation of their rationale and a screen print of the output to demonstrate that they work. The triggers should be used to implement business rules that you have identified.
You will be required to demonstrate your database to your tutor in week 14 - the exact date/time will be posted on Blackboard.
explain thee diffrent types of data models
Create role named role_table that allows a user to create tables. Using role_table allow users kripa and reena to create tables. CREATE ROLE role_table; GRANT CREATE ANY TABLE
DROP TABLE Command: When an existing object is not needed for further use, it is always better to eliminate it from the database. To remove the existing object from the databas
Isolation or Independence : The isolation property shows that the updates of a transaction should not be visible till they are committed. Isolation assurance that the progresses of
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
What is the difference between a key and a superkey? Key - A key a single attribute or a combination of two or more attributes of an entity set which is used to identify one
non numeric literals
What are domain constraints? A domain is a set of values that might be assigned to an attribute .all values that appear in a column of a relation must be taken fro
Define a view and a trigger. Construct a view for the above relations that have the information about suppliers and the elements they supply. The view holds the S#, SNAME, P# , PNA
Explain ER Relationship model? An entity-relationship model (ERM): An entity-relationship model (ERM) is an abstract theoretical illustration of structured data. Entity-relatio
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