Welcome to the Oracle tutorial app. If you are looking for learning Oracle Database from scratch, you are at the right place. In this app you can learn Oracle Database fast and easily.
This Oracle APP was designed for absolute beginners who have never worked with any relational database system, especially the Oracle Database.
If you are already familiar with the Oracle database, you can find a lot of useful information on the new Oracle database features and advanced techniques.
In this app, you will learn about the Oracle Database and how to install Oracle Database Server. In addition, you will learn how to create a sample database and how to connect to it for practicing. The Oracle app teaches you about how to use SQL to interact with the Oracle database. You will learn various techniques to query data from the database and how to manage database tables such as creating, modifying, and deleting tables. This app covers Oracle View which is a virtual table whose data is the result of a stored query. The virtual table means that a view only behaves like a table but does not actually contain any data.
Oracle index is one of the most effective tools for tuning query performance. However, in order to use it effectively, you must understand it correctly. This PL/SQL Tutorial section teaches you how to use PL/SQL programming language to develop modular and procedural programs in Oracle Database.
This app helps you understand how the Oracle aggregate functions work and show you how to use them to calculate aggregates.
Oracle analytic functions calculate an aggregate value based on a group of rows and return multiple rows for each group. This app provides you with the most commonly used Oracle date and time functions that help you effectively handle date time data. This section covers practical Oracle Database Administration tasks that help you get started with administering the Oracle Database quickly and effectively.
Oracle Database features
Oracle Database allows you to quickly and safely store and retrieve data. Here are the integration benefits of the Oracle Database.
Oracle Database is cross-platform. It can run on various hardware across operating systems including Windows Server, Unix, and various distributions of GNU/Linux.
Oracle Database has its networking stack that allows application from a different platform to communicate with the Oracle Database smoothly. For example, applications running on Windows can connect to the Oracle Database running on Unix.
ACID-compliant – Oracle is ACID-compliant Database that helps maintain data integrity and reliability.
Commitment to open technologies – Oracle is one of the first Database that supported GNU/Linux in the late 1990s before GNU/Linux become a commerce product. It has been supporting this open platform since then.
Oracle Database has several structural features that make it popular:
Logical data structure – Oracle uses the logical data structure to store data so that you can interact with the database without knowing where the data is stored physically.
Partitioning – is a high-performance feature that allows you to divide a large table into different pieces and store each piece across storage devices.
Memory caching – the memory caching architecture allows you to scale up a very large database that still can perform at a high speed.
Data Dictionary is a set of internal tables and views that support administer Oracle Database more effectively.
Backup and recovery – ensure the integrity of the data in case of system failure. Oracle includes a powerful tool called Recovery Manager (RMAN) – allows DBA to perform cold, hot, and incremental database backups and point-in-time recoveries.
Clustering – Oracle Real Application Clusters (RAC) – Oracle enables high availability that enables the system is up and running without interruption of services in case one or more server in a cluster fails.