The b-tree pages hold the main database content. The smallest SQLite_3 database is a single 512-byte page.Įvery page in an SQLite_3 database file is of a particular type: The theoretical maximum size for an SQLite_3 database file is about 140 terabytes typically, the file size limit of the underlying filesystem or hardware is the practical constraint. The page size for a database file is indicated by the 2-byte integer located at an offset of 16 bytes from the beginning of the database file. The size of a page in bytes is a power of two between 56 inclusive. All pages within the same database are the same size. The main SQLite_3 database file consists of one or more pages. See Appropriate Uses For SQLite for more detail on when SQLite is appropriate and examples of when a client/server SQL database engine would be more appropriate. They are designed to implement a shared repository of enterprise data SQLite is designed to provide local data storage for individual applications. SQLite is not directly comparable to client/server SQL database engines such as MySQL, Oracle, PostgreSQL, or SQL Server. See Adoption under Sustainability Factors below for examples of the many operating systems and software applications in which it is distributed or used. These features make SQLite_3 a popular choice as an application file format. The database file format, referred to here as "SQLite_3", is cross-platform, transferable between 32-bit and 64-bit systems or between big-endian and little-endian architectures. The engine, and thus the file format, support a full-featured SQL implementation. A complete SQL database with tables, indexes, triggers, and views, is contained in a single disk file. SQLite is an embedded SQL database engine that requires no configuration and reads and writes directly to ordinary disk files. The code, software, and accompanying documentation have been dedicated to the public domain. Software and associated documentation are available at. It is not the latest version, though.SQLite, version 3, is the file format used as the publicly documented native format for the SQLite database engine since June 2004. Install SQLiteįrom macOS X 10.4 and above, SQLite has been installed on macOS by default. Version 3 has been maintained for 18 years, and it continues on. SQLite 3.0.0 was released on June 18, 2004. SQLite 1.0 was released on August 17, 2000. Richard Hipp designed SQLite in the spring of 2000, and the database engine is written in the C programming language. Transactional: All transactions are fully ACID-compliant, i.e., Atomic, Consistent, Isolated, and Durable.ĭ.And SQLite does not use any configuration files. Zero-configuration: There is no package to be installed, no server process to be configured, started, and stopped.It is different from a normal RDBMS, such as MySQL, which requires a separate server process to operate. The applications interact with the SQLite database, and read and write directly from the database files stored on disk. Serverless: It is integrated with the application that accesses the database.Therefore, it is easy to be embedded in iPhones, Android phones, game consoles, handheld media players, etc. Self-contained: It requires minimal support from the operating system or external library.SQLite is the most widely deployed SQL database engine, which has the following features: The lite in SQLite means lightweight in terms of setup, database administration, and required resources. SQLite is a software library that provides a relational database management system (RDBMS). Photo by JOHN TOWNER on Unsplash What is SQLite?
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