Tag: Databases
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Storage Engine Internals: B-Trees, LSM-Trees & WAL Complete Reference
How databases store data on disk — B-trees vs LSM-trees, write-ahead logging, compaction, and the fsync durability boundary — a complete reference…
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Transactions & Isolation Levels: The Complete System Design Reference
ACID, isolation levels, snapshot isolation, write skew, two-phase commit, and sagas — a complete, self-contained reference on transactions for system design interviews.