The signed range for this numeric data type is -8388608 to 8388607, while the unsigned range is 0 to 16777215.Ī normal-sized integer. The signed range for this numeric type is -32768 to 32767, while the unsigned range is 0 to 65535.Ī medium-sized integer. The signed range for this numeric data type is -128 to 127, while the unsigned range is 0 to 255.Ī small integer. This is an expensive, inefficient solution, and in such cases a client-server DBMS may be a better choice.Ī very small integer. This access is built into the application, so if the data in SQLite is located on a separate machine from the application it will require a high bandwidth engine-to-disk link across the network. Network access is required: Because SQLite is a serverless database, it doesn’t provide direct network access to its data.If your application requires lots of write operations or multiple concurrent writers, SQLite may not be adequate for your needs. High write volumes: SQLite allows only one write operation to take place at any given time, which significantly limits its throughput.However, the SQLite website recommends that any database approaching 1TB be housed on a centralized client-server database, as an SQLite database of that size or larger would be difficult to manage. Working with lots of data: SQLite can technically support a database up to 140TB in size, as long as the disk drive and filesystem also support the database’s size requirements.Also, because a server is a single persistent process, a client-server database can control data access with more precision than a serverless database, allowing for more fine-grained locking and better concurrency. For example, stray pointers in a client cannot corrupt memory on the server. Security: A database engine that uses a server can, in some instances, provide better protection from bugs in the client application than a serverless database like SQLite.This makes SQLite a poor choice for applications that require multiple users with special access permissions. Because SQLite reads and writes directly to an ordinary disk file, the only applicable access permissions are the typical access permissions of the underlying operating system. No user management: Database systems often come with support for users, or managed connections with predefined access privileges to the database and tables.This means SQLite supports greater concurrency than most other embedded database management systems, but not as much as client/server RDBMSs like MySQL or PostgreSQL. Limited concurrency: Although multiple processes can access and query an SQLite database at the same time, only one process can make changes to the database at any given time.This file can be located anywhere in a directory hierarchy and can be shared via removable media or file transfer protocol. Portable: Unlike other database management systems, which typically store data as a large batch of separate files, an entire SQLite database is stored in a single file.These features help to streamline the path from installing SQLite to integrating it with an application. SQLite doesn’t run as a server process, which means that it never needs to be stopped, started, or restarted and doesn’t come with any configuration files that need to be managed. User-friendly: SQLite is sometimes described as a “zero-configuration” database that’s ready for use out of the box. Additionally, it’s fully self-contained, meaning there aren’t any external dependencies you have to install on your system for SQLite to work. Although the space it uses varies depending on the system where it’s installed, it can take up less than 600KiB of space.
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