By Wenny Rahayu
The recognition of object-oriented techniques, layout, and programming has motivated the necessity for a database approach that permits an easy approach to shop and retrieve item circumstances. Exploring object-oriented beneficial properties and strategies in Oracle DBMS, this booklet describes the basic points of knowledge modeling and implementation in Oracle. The implementation of structural features of an item version are lined, together with item kinds, assortment kinds, item referencing, nested tables, and inheritance constructions, in addition to the behavioral facets that come with encapsulated member systems and capabilities. the whole cycle of database layout utilizing object-oriented techniques, implementation on object-relational Oracle, and knowledge manipulations utilizing member procedures/functions and object-relational queries can also be addressed.
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The union also keeps records for teachers who are union members. All of these teachers have to work in government schools. Although it is not common, a teacher can work in more than one school. The type of school that can liaise with AEU has to be categorized into one of the three distinct types: primary school, secondary school, and technical college (TechC). We will draw an object-oriented model of the AEU database and determine the type where necessary. We will identify the objects and the relationships as follows.
The relational model is not rich enough to represent the high complexity of real-world problems. On the other hand, the object-oriented model that is well recognized as a very powerful approach to model high-complexity problems, such as in procedural languages, is not a well-known database system model. Also, users still like the ease of use of the relational model. Although the most widely used model of current database systems is a relational model, it can also be extended to adopt the concept of the object-oriented model.
Redwood City, CA: Oracle Corporation. Urman, S. (2000). Oracle™ 8i advanced PL/SQL programming. Oracle Press, Osborne. Chapter Problems 1. 2. 3. 4. 5. 6. Using Oracle™, create a table to store book records. Each record has the title, the author, the publisher, and the ISBN (International Standard Book Number) that uniquely differentiate the book. Continuing from Question 1, now we want to refer the attribute publisher into a table Publisher that has “name” as the primary key. If a deletion is performed in the publisher table, the associated referring key will be nullified.