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A Primary Index is an automatic, unique index created on a table's primary key for fast data retrieval. It ensures quick lookups, enforces uniqueness, and boosts performance in relational databases.
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A Unique Index enforces distinct values in a column, preventing duplicates while speeding up queries. It's ideal for fields like email or username, ensuring data accuracy with minimal impact on read performance.- Published on
The Leader and Follower pattern improves consistency and availability in distributed systems by electing a single leader to handle all write operations and coordinate replication, while followers act as backups or serve read requests.- Published on
Learn the key differences between batch processing and stream processing. Discover when to use each data processing method with real-world examples and use cases for optimal performance.- Published on
Learn how heartbeat signals help detect server failures in distributed systems. Understand why regular status checks are critical for routing requests and maintaining system reliability.