IT / Programming / Oracle / Oracle 19c / PL/SQL 2 - Object-Relational Features
| ID | 2757638 |
|---|---|
| Classroom | 2 days 9:00-16:30 |
| Webinar | 4 days 9:00-12:30 |
| Method | Lecture with examples and exercises. |
| Prequisite | Oracle SQL, PL / SQL |
| Audience | Programmers, developers |
Oracle´s Object-Relational Features are intended for programmers developing new applications or converting existing applications to run in the Oracle environment. The object-relational features are often used in content management, data warehousing, data/information integration, and similar applications that deal with complex structured data. The object views feature can be valuable when writing new C++, Java, or XML applications on top of an existing relational schema. This training assumes that you have a working knowledge of application programming and that you are familiar with the use of Structured Query Language (SQL) to access information in relational database systems. The various parts of this training a) introduce the key features and explain the advantages of the object-relational model, b) explain the basic concepts and terminology that you need to work with Oracle Objects, c) discuss collection datatypes and operations on collection datatypes, d) explain object views, which allow you to develop object-oriented applications without changing the underlying relational schema, and e) explains how to perform essential operations with objects and object types.
Overview of Object Orientation - Relational Mapping with PL/SQL - Object-Relational Structures
Introduction: basic principles of object types and objects, defining object types - PL/SQL objects in the Oracle database: create an object type, objects and SQL statements, objects in PL/SQL, object methods
Inheritance and hierarchies in PL/SQL object types: Simple inheritance, overriding methods, substitution principle and dynamic binding, overloading, inheritance prevention - Abstraction: The principle of abstraction, substitution principle for abstraction, tables and inheritance, substitution principle for tables substitutability important SQL functions
Create collections using object types: use of VARRAYs, use of nested tables - Use of collections in tables: collection types, collections of primitive data type, DML operations - collections and objects in PL/SQL: use of collections and cursors, nested tables, collections, nested structures
Permissions and security: system privileges for PL/SQL object types, schema rights for PL/SQL object types - administration of objects: dependencies, synonyms, system views for objects
Object Views and their use: general approach, nested structures - hierarchies and relationships, single-level hierarchies with collections, multilevel hierarchy with and without collections, relationships - working with Object Views: primary keys in views, NULL values??, references, inheritance, manipulation of data in views using SQL statements
Marco Skulschus (born in Germany in 1978) studied economics in Wuppertal (Germany) and Paris (France) and wrote his master´s thesis about semantic data modeling. He started working as a lecturer and consultant in 2002.
He works as an IT-consultant and project manager. He developed various Business Intelligence systems for industry clients and the public sector. For several years now, he is responsible for a BI-team in India which is mainly involved in BI and OLAP projects, reporting systems as well as statistical analysis and Data Mining. He led several research projects and was leading scientist and project manager of a publicly funded project about interactive questionnaires and online surveys.
He led several research projects and was leading scientist and project manager of a publicly funded project about interactive questionnaires and online surveys.
