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Sharding
Last Updated: May 26, 2026
Ashish Pratap Singh
High Priority
8 min read
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On this page
1. What is Database Sharding?
2. Why Shard?
3. How Sharding Works
4. Choosing a Shard Key
5. Sharding Strategies
6. Cross-Shard Queries
7. Joins and Transactions Across Shards
8. Rebalancing and Resharding
9. Hot Shards
10. When Not to Shard
11. Practical Rules of Thumb
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Sharding vs Partitio...
