A durability mechanism that records changes in an append-oriented log before the corresponding data pages are written to stable storage.
A write-ahead log is a durability and recovery structure; its exact semantics differ between database engines and should not be assumed from the generic term alone.
Publications whose title or summary directly references this concept.
Database-systems course notes covering ER and relational models, normalization, relational algebra, SQL, transactions and access control together with storage engines, buffer pools, B+ trees, WAL, and crash recovery.
A practical Red Hat Enterprise Linux system administration reference covering the shell, file systems, users, SELinux, systemd, networking, firewalls, DNF, LVM, storage, virtualization, Podman, automation, image mode, troubleshooting, and performance from fundamentals to advanced operations.
In PCM processing, media time is derived from the number of samples processed per channel rather than the wall clock. The same counter keeps stereo frames, partial reads, and segment boundaries on one time axis.
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