DatabasesIntermediate Popular

PostgreSQL Foundations

The relational database behind serious applications.

Go beyond basic SQL. Design schemas, write joins and aggregations, read query plans, add the right indexes and protect data with transactions and roles.

10 lessons 2 hours Certificate included Self-paced

Start the first lesson View curriculum

Reviewed and updated October 2026 · Free to start

What you will learn

By the end, you can do this.

Design a normalized schema with real constraints
Write joins, aggregates and window queries
Read EXPLAIN ANALYZE and choose indexes
Use transactions and roles to protect data

Curriculum

10 lessons in 1 module

290 practice drills included for extra repetition

0/10 complete

01Installing and connectingInstall PostgreSQL and learn how a client such as psql reaches the server that stores your data. 10 min 02Creating tables and relationshipsCreate tables with primary and foreign keys that turn one-to-many relationships into enforced rules. 12 min 03Writing data in transactionsWrite rows with INSERT, UPDATE and DELETE, read back results, and group changes into transactions. 12 min 04Backups and restoreBack up a database with pg_dump and restore it with pg_restore, then prove the backup actually works. 11 min 05Performance basicsRead query plans with EXPLAIN ANALYZE and add the indexes and maintenance your queries need. 13 min 06The relational model and psqlPostgreSQL stores rows in tables and enforces relationships with keys. 13 min 07Types, NULL and schema designChoose types that match the domain and decide deliberately whether NULL is allowed. 14 min 08Joins and aggregatesJoins combine related rows; aggregates summarize groups. 15 min 09Indexes and query plansAn index trades write cost and storage for faster reads—when it matches the query. 15 min 10Transactions, locking and rolesTransactions make multi-step changes atomic; roles limit what can happen. 15 min

Certification

Finish the course. Prove the skill.

Complete every lesson, then pass a timed assessment to earn the PostgreSQL Foundations Certificate. Each credential has a unique ID and a QR code that resolves to a live public record.

10 randomized questions
30 minute limit · 80% to pass
3 attempts per enrolment
Verifiable by QR or credential ID

Certification details Verify a credential

Pro members get five certification attempts and unlimited timed mock exams. Compare Pro

EduByte.tech

EduByte · Skills certificationIssued 26 Oct 2026

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has successfully completed the assessed program

PostgreSQL Foundations

Design a normalized schema with real constraintsWrite joins, aggregates and window queriesRead EXPLAIN ANALYZE and choose indexes

PostgreSQL Foundations

By the end, you can do this.

10 lessons in 1 module

Finish the course. Prove the skill.

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