#databases

Systems fundamentals quick-fire: memory, processes, threads and transactions
CodingxAI
▲ 00 solutions
Keep a shared payment account correct under concurrent payments
System designTesla
▲ 00 solutions
Locks versus MVCC in a versioned store
CodingNuro
▲ 00 solutions
Design an API to deep-copy a dataset with its tasks, responses and grades
System designMercor
▲ 00 solutions
Design a cache for query views that depend on each other
System designSnowflake
▲ 00 solutions
Design a database that tracks changes to resources
System designMicrosoft
▲ 00 solutions
Explain ACID and transaction isolation levels
System designMeta
▲ 00 solutions
Cut read latency in an existing relational database design
System designApple
▲ 00 solutions
Database internals: WAL, MVCC, replication and recovery
CodingAmazon
▲ 00 solutions
Design a cloud database's write path and crash recovery
System designAmazon
▲ 00 solutions
Threshold-based database partition rebalancer
CodingAmazon
▲ 00 solutions
High availability and failover for a primary-replica database
System designAmazon
▲ 00 solutions
Rewrite a SQL query plan tree
CodingHardDatabricks
▲ 00 solutions