Pass the D426 OA in 7 Days

The course identifier of this lesson is D426 – Data Management – Foundations and this lesson is developed in a way that gives students complete knowledge and understanding of databases to manage them efficiently. During the course of this class, you will learn the essential concepts of data management with a heavy emphasis on SQL, data structure, and Data security. You will also be learning about data quality, storage techniques, and more so the new advanced cloud database systems.

More specifically, the D426 module exposes the students to both the theoretical fundamentals of SQL and apply what they have learned practically. You will become familiar with the most basic patterns of commercial databases – the relational database, basics of primary and foreign keys, notions of data normalization, and key types of relationships – one-to-many, many-to-many. The course also entails the actual running of the database in MySQL and includes concepts such as cardinality, entity relationship diagrams, supertype and subtype entities, and referential integrity.

The first benefit of the D426 course is that it assigns extensive application of theoretical knowledge in solving actual database problems. At the end of the course, one will have a good grasp of what comprises databases, the methods of creating them, and how they are controlled. You also learn about the new generation of databases including cloud databases, distributed systems, and data warehouses in the course. This helps ensure there is an understanding of the tasks incorporating modern data management challenges in the workplace.

The D426 course content focuses on the ability to write SQL queries, data storage and retrieval techniques, and basic database architecture that fits certain business demands. You will also receive all the necessary information on data protection and corresponding deadlines in compliance with the data protection standards.

By the end of the D426 course, you will have mastered several competencies, including:

• Mastering SQL Basics: Be able to explain and perform SQL: SELECT, INSERT, UPDATE, DELETE, case on joins and subqueries.
• Understanding Database Design: Explain 1NF, 2NF, 3NF, and Boyce Codd, database schemes, and data modeling.
• Data Security and Integrity: Learn how to secure databases, obtain information about data quality, and work with referential integrity.
• Exploring Cloud and Distributed Databases: Learn how the modern architecture paradigm such as the cloud databases, data warehouse, and replicated databases function in live environments.
• Designing Entity Relationship Diagrams (ERDs): Learn about ERDs and how they can be used to model relationships between data entities as well as distinct forms of entities such as weak entities, cardinality, and supertype as well as subtype relationships.