Course Outline
Lesson 1 - SQL basics:
- Select statements.
- Join types.
- Indexes.
- Views.
- Subqueries.
- Union.
- Creating tables.
- Loading data.
- Dumping data.
- NoSQL.
Lesson 2 - Data Modeling:
- Transaction based ER systems.
- Data warehousing.
- Data warehouse models
- Star schema.
- Snowflake schemas.
- Slowly changing dimensions (SCD).
- Structured and non-structured data.
- Different table type storage engines:
- Column based.
- Document-based.
- In Memory.
Lesson 3 - Index in the NoSQL/Data science world
- Constraints (Primary).
- Index-based scanning.
- Performance tuning.
Lesson 4 - NoSQL and non-structured data
- When to use NoSQL.
- Eventually consistent data.
- Schema on read vs. Schema on write.
Lesson 5 - SQL for data analytics
- Windowing function.
- Lateral Joins.
- Lead & Lag.
Lesson 6 - HiveQL
- SQL Support.
- External and Internal Tables.
- Joins.
- Partitions.
- Correlated subqueries.
- Nested queries.
- When to use Hive.
Lesson 7 - Redshift
- Design and structured.
- Locks and shared resources.
- Postgres differences.
- When to use Redshift.
Requirements
- An understanding of databases.
- Experience with SQL is an asset.
Audience
- Business analysts.
- Software developers.
- Database developers.
Testimonials (3)
Gunnar adjusted the content for the second day based on our feedback from day one. He checked in with us to find out what we liked, disliked, found hard and how we wanted to approach day 2. I liked Gunnar's style of teaching: Lecture, share examples, allowed us time to practice and answer questions before moving to the next subject. It meant we could fully understand a topic before moving onto the next subject. This reduced overload of information and gave us a chance to spend more time on the topics we struggled with and less time on the stuff we found easy.
Ffion - Complete Coherence
Course - SQL For Data Science and Data Analysis
Gunnar’s training technique is dynamic, thorough, and perfectly tailored to individual needs. In our group of five, he ensured everyone stayed on track and fully understood the material throughout the course. The knowledge and resources we gained will undoubtedly be valuable for years to come. Thank you, Gunnar!
Marcia - Complete Coherence
Course - SQL For Data Science and Data Analysis
Gunnar created a great rapport with the audience and was quick to identify our needs. He was engaging and highly knowledgeable throughout and we enjoyed his humour.
