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Duration 14 hours
Course Outline
1. Introduction to Relational Databases
- Defining the relational database model
- PostgreSQL architecture and key components
- An overview of PgAdmin and psql tools
- Establishing database connections and understanding schemas
2. SQL Basics
- Database objects: tables, columns, and constraints
- Data types and handling NULL values
- Constructing simple SELECT queries
- Applying filters using WHERE, pattern matching, and logical operators
- Sorting and restricting query results
3. Working with Functions and Expressions
- Utilizing arithmetic and string functions
- Implementing conditional expressions and case statements
- Managing NULLs and performing data type conversions
4. Combining and Filtering Data
- Inner and outer joins, self-joins, and cross joins
- Set operations: UNION, INTERSECT, and EXCEPT
- Subqueries: scalar, correlated, and table subqueries
- Common Table Expressions (CTEs) and recursive queries
5. Aggregation and Grouping
- Aggregate functions: SUM, AVG, COUNT, MIN, MAX
- GROUP BY and HAVING clauses
- Window and ranking functions
6. Modifying Data
- Inserting, updating, and deleting records
- Utilizing transactions and rollback mechanisms
- Understanding ACID principles
- Best practices for safe data manipulation
7. Database Objects and Logical Structure
- Creating and maintaining schemas and tables
- Primary keys, foreign keys, and unique constraints
- Creating and managing views and materialised views
- Introduction to indexes and their impact on performance
Requirements
- A foundational understanding of basic IT and data concepts
- No previous experience with SQL or databases is necessary
- Proficiency with software tools on Windows or Linux environments is advantageous
Target Audience
- Database novices and data analysts
- Developers beginning their journey with PostgreSQL
- Professionals currently managing or investigating relational databases
Testimonials (3)
CTE and indexes. Maybe more likely to use partitioning, explain analyze and vacuum on daily-base work
Lorenzo Antonelli - Innova S.P.A
Course - PostgreSQL Fundamentals
Index understanding and usage, improvements on db performances
Matteo Baldini - Innova S.P.A
Course - PostgreSQL Fundamentals
advance topics hands on + discussion like timescaleDB and hypertable , trainer's knowledge on the subject :)
