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YOUR GUIDED PATH

Database fundamentals

Move from data modelling to query plans and transaction isolation.

Relational model & keys

Explore relational model & keys through a visual, step-by-step model.

12 min · beginner

ER modelling

Explore er modelling through a visual, step-by-step model.

12 min · beginner

Normalization 1NF to BCNF

Explore normalization 1nf to bcnf through a visual, step-by-step model.

12 min · intermediate

PRINCIPLESFree

Denormalization trade-offs

Explore denormalization trade-offs through a visual, step-by-step model.

12 min · intermediate

SQL query execution order

Explore sql query execution order through a visual, step-by-step model.

12 min · intermediate

SQL joins

Explore sql joins through a visual, step-by-step model.

12 min · intermediate

Indexes & B+ tree lookups

Explore indexes & b+ tree lookups through a visual, step-by-step model.

12 min · intermediate

Composite & covering indexes

Explore composite & covering indexes through a visual, step-by-step model.

12 min · intermediate

Query plans & EXPLAIN

Explore query plans & explain through a visual, step-by-step model.

12 min · intermediate

ACID

Explore acid through a visual, step-by-step model.

12 min · intermediate

Transactions

Explore transactions through a visual, step-by-step model.

12 min · intermediate

Isolation levels & anomalies

Explore isolation levels & anomalies through a visual, step-by-step model.

12 min · intermediate

Locking & deadlocks

Explore locking & deadlocks through a visual, step-by-step model.

12 min · intermediate

MVCC

Explore mvcc through a visual, step-by-step model.

12 min · intermediate

Write-ahead log & recovery

Explore write-ahead log & recovery through a visual, step-by-step model.

12 min · intermediate

SQL vs NoSQL

Explore sql vs nosql through a visual, step-by-step model.

12 min · intermediate

NoSQL data models

Explore nosql data models through a visual, step-by-step model.

12 min · intermediate

LSM trees & SSTables

Explore lsm trees & sstables through a visual, step-by-step model.

12 min · intermediate

Replication & sharding

Explore replication & sharding through a visual, step-by-step model.

12 min · intermediate

Connection pooling

Explore connection pooling through a visual, step-by-step model.

12 min · intermediate

Database caching

Explore database caching through a visual, step-by-step model.

12 min · intermediate