PostgreSQL Database Administration Complete Course

Explore how primary keys, foreign keys, and constraints in PostgreSQL maintain data integrity and relationships between tables, with practical examples of enforcing uniqueness, referential integrity, and value rules.

learn to clean, group, and filter data in PostgreSQL using distinct, group by, and having, demonstrated with a products table and category counts.

Explore how joins in PostgreSQL combine data from multiple tables by linking employee and department data, including inner join, left join, right join, and full join.

Design efficient data models in PostgreSQL by normalizing schema, establishing clear relationships among customers, orders, and products, and using indexing and constraints to boost performance.

Explore one-to-one, one-to-many, and many-to-many relationships in PostgreSQL, linking data with foreign keys and a junction table to build a normalized, scalable data model.

Explore views for data abstraction in PostgreSQL by creating a view as a stored query that acts as a virtual table, simplifying access, securing data, and abstracting table structures.

Discover how to implement composite keys and foreign key constraints in PostgreSQL to link order and order item tables, ensuring unique records and data integrity.

Explore PostgreSQL window functions to rank employees by sales using row_number, rank, and dense_rank, with side-by-side comparisons and practical examples.

Discover how to use recursive queries with common table expressions in PostgreSQL to navigate hierarchical data, like employee hierarchies, through a practical multi-step example.

Explore JSON and JSONB data types in PostgreSQL, learn how to store semi-structured JSON data directly in your database, and use JSON and JSONB features individually.

Explore implementing full text search in PostgreSQL by creating a tails vector column, indexing with a gene index, and querying with ts query and ts_rank for English text.

Explore how PostgreSQL arrays store multiple values in a single column and how enums enforce predefined values, with practical examples of table creation, data insertion, and queries.

Learn how PostgreSQL indexes speed up queries by avoiding sequential scans, create indexes on columns like email, and balance performance with insert and update costs.

Discover how to create and manage PostgreSQL indexes to speed up queries, covering simple, unique, partial, and expression indexes, plus viewing and dropping indexes.

Analyze query performance with explain and analyze to see execution plans and actual times, then optimize by indexing on total_amount to move from sequential scan to index scan.

Master optimizing queries for large datasets in PostgreSQL by using indexing, partitioning, and efficient join strategies to speed data retrieval and achieve scalable performance.

Learn scid properties—automaticity, consistency, isolation, and durability—and how PostgreSQL uses begin, commit, and rollback to ensure reliable transactions.

Master PostgreSQL transactions and savepoints to maintain data integrity across multi-step operations. Learn to begin, commit, rollback, and use savepoints to rollback partial work without affecting earlier updates.

Explore how PostgreSQL controls transaction visibility across isolation levels, including read committed, repeatable read, and serialized isolation, by testing with an account table and concurrent updates.

Create PostgreSQL users with the create role command and login privileges, assign them to roles, grant connect on database, and grant select, insert, update, delete on tables in schema public.

Master row-level security (RLS) in PostgreSQL to enforce fine-grained data access. Create a sample sales table, enable RLS, grant privileges, and define a policy using the current user.

Learn to secure PostgreSQL connections using SSL/TLS, verify SSL status with show ssl, monitor active connections, and enforce strong authentication and encrypted passwords.