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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.
intent locking
In the ER diagram, one example of subclassing is depicted following the Services entity. The subclasses Item Based and Time Based are created. The entity Services gains the attribu
What is a view? A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived f
Aggregation Aggregation is stronger form of association. It represents the "has-a" or "part-of" relationship. An aggregation association depicts a complex object which is comp
List the drawbacks of relational database system A) Repetition of data B) Inability to s certain information.
What are the two integrity rules? Ans: The two integrity rules are: Entity Integrity Rule & Referential Integrity Rule. Entity Integrity Rule - If the attribute A of rel
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
Database systems have many opposite efforts ?
List the internal controls that should be in effect solely because a EDP system is employed, classifing them as (1) Those controls pertaining to input of information and (2) All ot
Consider the following relational schema: Doctor(DName,Reg_no) Patient(Pname, Disease) Assigned_To (Pname,Dname) Give expression in both Tuple calculus and Domain calculus for
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