Topic
Anomalies
Learn Anomalies as a connected topic across chapters, concepts, simulations, and interview reasoning.
10 Concepts3 Articles1h 12m
Overview
Learn Anomalies as a connected topic across chapters, concepts, simulations, and interview reasoning.
How this topic helps
Consistency
Databases
Distributed Systems
Sql
Learning Path in this Topic
Series that contain articles from Anomalies. Select a path to filter the article list.
Articles
3 matched articles
Article 1Data Anomalies in Distributed Systems: Split Brain, Clock Skew, Stale Reads, and MoreTLDR: Distributed systems produce anomalies not because the code is buggy — but because physics makes perfect consistency impossible across network boundaries. Split brain, stale reads, clock skew, ca13 min
Article 2Database Anomalies: How SQL and NoSQL Handle Dirty Reads, Phantom Reads, and Write SkewTLDR: Database anomalies are the predictable side-effects of concurrent transactions — dirty reads, phantom reads, write skew, and lost updates. SQL databases use MVCC and isolation levels to prevent 31 min
Article 3Isolation Levels in Databases: Read Committed, Repeatable Read, Snapshot, and Serializable ExplainedTLDR: Isolation levels control which concurrency anomalies a transaction can see. Read Committed (PostgreSQL and Oracle's default) prevents dirty reads but still silently allows non-repeatable reads, 28 min