SQLite File IO Specification
SQLite File IO Specification
Overview
SQLite stores an entire database within a single file, the format of which is described in the SQLite File Database File Format document ff_sqlitert_requirements. Each database file is stored within a file system, presumably provided by the host operating system. Instead of interfacing with the operating system directly, the host application is required to supply an adaptor component that implements the SQLite Virtual File System interface (described in capi_sqlitert_requirements). The adaptor component is responsible for translating the calls made by SQLite to the VFS interface into calls to the file-system interface provided by the operating system. This arrangement is depicted in figure figure_vfs_role.
Figure - Virtual Fi
