Master of Oracle Database 10g, 11g, 12c, 19c, 21c and 26ai

core relational database concepts, SQL fundamentals, and basic database architecture. 

• Data Query Language (DQL): Master the SELECT statement, filtering with WHERE, sorting with ORDER BY, and joining multiple tables (INNER, LEFT, RIGHT joins).
• Data Manipulation Language (DML): Practice how to add, modify, and remove data using INSERT, UPDATE, and DELETE.
• Data Definition Language (DDL): Learn to build and alter the structural database objects using CREATE, ALTER, and DROP.
• Transaction Control Language (TCL): Learn how to save or undo changes using COMMIT and ROLLBAC
• Tables and Schemas: Learn how data is stored in rows and columns, and how a schema acts as a container for these objects.
• Primary and Foreign Keys: Master how to uniquely identify records and link tables together.
• Data Integrity: Understand constraints like NOT NULL, UNIQUE, and CHECK to keep data accurate.
• Views: Virtual tables used to simplify complex query results.
• Indexes: Structural tools used to speed up data searches.
• Sequences: Automated counters used primarily to generate unique ID numbers.