SQL Fundamentals
Work with SELECT, INSERT, UPDATE and DELETE, including filtering, sorting and limiting results.
Online PostgreSQL Training for Real Database Work
PostgreSQL is an open-source relational database system used to store, organise and query structured data. It supports SQL, transactions, constraints, views, indexes and advanced data types, making it useful for many application and data-management needs.
This training page outlines a practical learning path for people who want to understand relational databases and write more confident SQL. Learn why queries work, how tables relate to one another, and how to maintain reliable data.
Write SELECT queries with filters and sorting
Use joins, grouping and aggregate functions
Understand tables, keys and relationships
Explore transactions, constraints and indexes
Is this suitable for beginners? Learners new to SQL can start with database fundamentals. People who already use MySQL or another relational database can focus on PostgreSQL-specific concepts and differences.
Build Useful PostgreSQL Database Skills
Understand relational data and practise query patterns commonly used when building and maintaining applications.
Joins and Relationships
Connect related tables using primary keys, foreign keys and different types of joins.
Reliable Data
Explore constraints, transactions and data-integrity concepts that help keep records consistent.
Query Performance Basics
Learn what indexes do and how EXPLAIN can help inspect a query plan.
PostgreSQL Training Syllabus
Use this topic outline as a starting point. Confirm the final syllabus, pace and practical exercises when discussing your training requirements.
1. PostgreSQL and database basics
- Relational database concepts and PostgreSQL overview
- Database, schema, table, row and column concepts
- Data types, NULL values and default values
- Primary keys, foreign keys and constraints
2. SQL queries
- SELECT, WHERE, ORDER BY and LIMIT
- INSERT, UPDATE and DELETE
- Aggregate functions, GROUP BY and HAVING
- Subqueries, aliases and common table expressions
3. Joins and data modelling
- INNER, LEFT, RIGHT and FULL joins
- One-to-one, one-to-many and many-to-many relationships
- Normalisation and practical table design
- Views and reusable query patterns
4. PostgreSQL features
- Sequences and identity columns
- Transactions and ACID fundamentals
- Indexes and EXPLAIN query plans
- Date/time functions, text functions and JSON basics
5. Application and maintenance concepts
- Connecting an application to PostgreSQL
- Roles, privileges and access-control basics
- Backup and restore concepts
- Reading errors and troubleshooting SQL
From First Query to Confident Database Work
Progress from simple queries to connected tables, reliable transactions and query analysis.
01
Understand the Data
Learn how databases, tables, data types, keys and relationships are organised.
02
Write and Combine Queries
Practise filters, sorting, aggregates, joins and subqueries against sample data.
03
Protect Data Integrity
Use constraints and transactions to reason about consistent database changes.
04
Review and Improve Queries
Explore indexes, EXPLAIN output and systematic troubleshooting of incorrect or slow queries.
Who Can Learn PostgreSQL?
Students and Beginners
Build a foundation in SQL and relational database concepts.
PHP and Web Developers
Learn to connect applications with PostgreSQL and write data queries.
MySQL Users
Explore PostgreSQL syntax, features and database behaviour beyond familiar SQL.
Data-Focused Learners
Strengthen SQL skills used in reporting, analysis and data-backed applications.
PostgreSQL Training FAQs
What is PostgreSQL?
PostgreSQL is an open-source relational database system used to store, query and manage structured data. It supports SQL, transactions, constraints, indexes and multiple data types.
Do I need SQL knowledge first?
No prior PostgreSQL experience is necessary to start with the fundamentals. Basic SQL or database knowledge can help you progress more quickly.
Is PostgreSQL different from MySQL?
Both are relational database systems and support SQL, but they differ in some syntax, data types, features, tooling and behaviour.
Will I learn joins and subqueries?
The suggested syllabus covers joins, aggregation, subqueries and common table expressions. Confirm the exact curriculum when enquiring.
Can web developers benefit from PostgreSQL?
Yes. PostgreSQL can be used as the database layer for web applications, and SQL skills help developers work with stored data, relationships and reporting queries.
How do I confirm fees and schedule?
Contact PHP Kolkata to ask about current availability, course coverage, training format, fees and schedule.
Ready to Strengthen Your SQL Skills?
Tell us your current database experience and learning goals. Ask about PostgreSQL training topics and a suitable starting point.
Enquire About PostgreSQL Training