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In computer science, write-ahead logging (WAL) is a family of techniques for providing atomicity and durability (two of the ACID properties) in database systems. [ 1 ] A write ahead log is an append-only auxiliary disk-resident structure used for crash and transaction recovery.
SQLite (/ ˌ ɛ s ˌ k juː ˌ ɛ l ˈ aɪ t /, [4] [5] / ˈ s iː k w ə ˌ l aɪ t / [6]) is a free and open-source relational database engine written in the C programming language.It is not a standalone app; rather, it is a library that software developers embed in their apps.
wxSQLite3 is a C++ wrapper around the public domain SQLite 3.x database and is specifically designed for use in programs based on the wxWidgets library.. wxSQLite3 does not try to hide the underlying database, in contrary almost all special features of the current SQLite version 3.47.2 are supported, like for example the creation of user defined scalar or aggregate functions.
pgaudit is a PostgreSQL extension that provides detailed session and/or object audit logging via the standard logging facility provided by PostgreSQL. [110] WAL-E WAL-E is a backup and restore tool for PostgreSQL that provides support for physical (WAL-based) backups, written in Python. [111] DBeaver
SpatiaLite is a spatial extension to SQLite, providing vector geodatabase functionality. It is similar to PostGIS, Oracle Spatial, and SQL Server with spatial extensions, although SQLite/SpatiaLite aren't based on client-server architecture: they adopt a simpler personal architecture. i.e. the whole SQL engine is directly embedded within the application itself: a complete database simply is an ...
Similar controls over web storage are also available through 3rd party browser extensions. Each browser stores Web storage objects differently: Firefox saves Web storage objects in a SQLite file called webappsstore.sqlite in the user's profile folder. [16] Google Chrome records Web storage data in a SQLite file in the user's
Web SQL Database is a deprecated web browser API specification for storing data in databases that can be queried using SQL variant. [1] [2] The technology was only ever implemented in Blink-based browsers like Google Chrome and the new Microsoft Edge, and WebKit-based browsers like Safari.
This flush is performed sequentially, ensuring high I/O efficiency by avoiding the costly random writes typical of traditional indexing methods. To maintain durability, the system may use a write-ahead log (WAL) that records all incoming writes before they are added to the memory buffer. This ensures that no data is lost in the event of a crash ...