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Server Control
It is usual to control access to the data via the front end application, for example by displaying data as ‘read only'. This part of the assignment illustrates how programmers can create reusable (and therefore shareable) code, you will be creating simple components to reuse and call from elsewhere in your code.
For the case study:
a) Identify and create a user defined function.
b) Identify a useful persistent package variable for the system.
c) Identify suitable package for the system that implements constraints. Create the package program.
d) Implement a DML type program unit (e.g. a procedure that updates data in a table) that calls the package you created in task c).
e) Implement a trigger that calls the program unit you created in task d).
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
Problem: (a) Given the following relation: Stats(Name,Sex,Children, Occupation, Salary, Tax, Audits) Write SQL code to define the following security constraints: (i) User
Explain the Dynamic Hashing Techniques There are two methods in it: extendible hashing - stores an access structure in addition to the file, and therefore is somewhat identica
In which format database schema is written ? Data base schema is written in the DDL format.
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
Describe about Object oriented design Object oriented design is concerned with developing an object oriented model of a software system to implement known requirements. Many OO
Explain ODBC? ODBC - Open DataBase Connectivity (ODBC) enable the integration of SQL along with a general-reasons programming language.
Control as Concurrent Tasks The expression control as simultaneous task means applying control for those events of object which can happen simultaneously. An object can be imp
What types of adjustments are required to increase chances of inheritance. a) Some attributes can be added or ignored in the base class operation b) Some changes can be
Explain what is Aggregation ? Aggregation: This is used whenever we intend to show a relationship between an entity and the relationship. There is no provision for this in th
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