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
DynamoDB
Fully managed serverless NoSQL database by AWS
Primary-Replica Architecture
Architecture with primary for writes, replicas for reads
Document Database
NoSQL database storing data as flexible JSON-like documents
Replication
Copying data between servers for redundancy
Isolation Level
Degree of visibility between concurrent transactions
B-Tree Index
Self-balancing tree index for efficient sorted data operations