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Database Internals Topics
![A trolley denoting migration of data between shards](https://static.wixstatic.com/media/9d30f2_447a214a5b7f40be89a165b8e7c0c32e~mv2.webp/v1/fill/w_149,h_96,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/9d30f2_447a214a5b7f40be89a165b8e7c0c32e~mv2.webp)
Learn how to migrate data between shards in a database without causing any downtime.
![A compressed string denoting data saved in compressed format](https://static.wixstatic.com/media/9d30f2_701a1028e7364415aa87c54d32bc3e82~mv2.jpg/v1/fill/w_206,h_96,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Unknown_edited.jpg)
Use Redis Hashes to save data efficiently
![](https://static.wixstatic.com/media/9d30f2_5a66d2843b7d48d3bf76870215104a3a~mv2.jpg/v1/fill/w_147,h_84,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/9d30f2_5a66d2843b7d48d3bf76870215104a3a~mv2.jpg)
Explore the technical challenges of managing database transactions for concurrent requests
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