Software AtlasArea 06 · 7 topics
Databases
Why queries are fast or slow, what isolation levels really protect you from, and how data survives crashes.
01
Deep-dive readyIndexes & B-Trees
How an index turns a scan into a lookup.
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02
Deep-dive readyN+1 Queries & ORMs
The most common performance bug, and how to see it.
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03
Deep-dive readyTransactions & Isolation
ACID, isolation levels, anomalies, MVCC.
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04
Deep-dive readyReplication
Leader/follower, sync vs async, replication lag.
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05
Deep-dive readyPartitioning & Sharding
Hash vs range, hot keys, resharding.
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06
Deep-dive readySQL vs NoSQL
Data models and access patterns, not hype.
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07
Deep-dive readyLSM Trees vs B-Trees
Write-optimized storage behind Cassandra, RocksDB.
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