In this course, you'll learn:

• Introduction to databases and PostgreSQL
  • Understanding the role of databases in modern applications
  • Overview of PostgreSQL and its advantages
• Installing PostgreSQL and setting up the environment
  • Downloading and installing PostgreSQL on various platforms
  • Configuring user accounts and access privileges
• Basic SQL queries (SELECT, INSERT, UPDATE, DELETE)
  • Retrieving data from tables using SELECT
  • Adding new data with INSERT
  • Modifying existing data with UPDATE and DELETE
• Creating and managing databases and tables
  • Creating databases with CREATE DATABASE
  • Creating tables with CREATE TABLE
  • Modifying tables with ALTER TABLE and DROP TABLE
• Understanding data types in PostgreSQL
  • Working with numeric, character, and date/time data types
  • Handling NULL values and default values in columns
• Querying multiple tables with JOINs
  • Understanding different types of JOINs (INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN)
  • Using aliases for table names and column names
• Aggregating data with GROUP BY and HAVING
  • Grouping data based on specific criteria
  • Filtering grouped data with HAVING clause
• Working with subqueries
  • Using subqueries in SELECT, INSERT, UPDATE, and DELETE statements
  • Correlated subqueries and their performance implications
• Modifying table structure with ALTER
  • Adding, modifying, and dropping columns
  • Renaming tables and columns
• Ensuring data integrity with constraints (Primary Key, Foreign Key, Unique, NOT NULL)
  • Defining primary keys and their importance
  • Creating foreign key relationships between tables
  • Adding constraints to enforce data integrity
• Data manipulation using functions and operators
  • Using built-in functions for string manipulation, mathematical operations, and date/time handling
  • Understanding operators and their precedence
• Working with views for data abstraction
  • Creating and managing views
  • Using views to simplify complex queries
• Understanding transactions and their properties (ACID)
  • Atomicity, Consistency, Isolation, and Durability of transactions
  • Managing transactions with BEGIN, COMMIT, and ROLLBACK
• Implementing transactions with BEGIN, COMMIT, and ROLLBACK
  • Ensuring data integrity and reliability with transactions
• Introduction to indexing and optimizing query performance
  • Understanding indexing and its impact on query speed
  • Creating and managing indexes for faster data retrieval