The Oracle Server supports ANSI standard SQL and contains extensions. SQL is the language used to communicate with the server to access, manipulate, and control data.
The PL/SQL language extends the SQL language by offering block-structured procedural.
This tutorial will give you great understanding on SQL & PL/SQL to proceed with Oracle database and other advanced RDBMS concepts.
This chapter describes your responsibilities as a database administrator (DBA) who administers the Oracle database server. we believe it’s a good idea for early-career DBAs to develop a 360-degree view of how your databases interact with various subsystems — OS, network, firewalls, server hardware, and storage systems, to name a few. Our suggestions will be rooted in this concept.
a) Basics of Oracle DBA:
It is the relational database management system. The main objective of this is to store, manage and retrieve information efficiently to deliver high performance. It is also termed as RDBMS or simply Oracle.
The key responsibilities of an Oracle DBA include:
• Data collection
• Data migration
• Database designing
• Performance monitoring
• Security mechanisms
• Data recovery techniques
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not.
Testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.
This tutorial will give you a basic understanding on software testing, its types, methods, levels, and other related terminologies.
Typically Testing is classified into three categories.
• Functional Testing
• Non-Functional Testing or Performance Testing
• Maintenance (Regression and Maintenance)