From blazing-fast searches to optimized storage, these 8 data structures are the unsung heroes behind modern databases:
1️⃣ Skiplist – Perfect for in-memory operations (e.g., Redis).
2️⃣ Hash Index – The go-to for quick lookups in memory.
3️⃣ SS Table – Immutable and disk-based, designed for efficient reads.
4️⃣ LSM Tree – Balances memory and disk for high write throughput.
5️⃣ B-tree – The workhorse for disk-based database indexing.
6️⃣ Inverted Index – Powers search engines like Lucene for document searches.
7️⃣ Suffix Tree – Efficient in string searches and suffix matching.
8️⃣ R-tree – Handles multidimensional data for nearest-neighbor queries.
💡 Whether you're optimizing performance, scaling a database, or just learning the fundamentals, understanding these data structures is key to mastering database engineering.
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