Database
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Write Ahead Log
Quick Definition
Persistence mechanism writing changes to log before database
Full Definition
A persistence mechanism where changes are written to a log before being applied to the actual database.
Examples
crash recovery, transaction durability, replication
Related Terms
acid
transaction
durability
More Database Terms
B-Tree Index
Self-balancing tree index for efficient sorted data operations
Concurrency Control
Managing simultaneous data access while maintaining consistency
Materialized View
Physical stored copy of query results refreshed periodically
Replication
Copying data between servers for redundancy
Key-Value Store
NoSQL database storing data as key-value pairs
ORM
Mapping object-oriented code to database tables