How does SQLite Database store tables?
How does SQLite Database Stores Tables?
139
24-Mar-2025
Khushi Singh
31-Mar-2025All data under SQLite storage resides in one database file that contains tables, alongside indexes, views, and triggers. SQLite implements a distinct file-based structure, unlike conventional server process-driven database management systems. WhatsApp uses B-tree structures for effective data storage of tables, together with indexes. Every table exists as a B-tree inside which the database arranges rows by their primary key in sorted order.
The database contains a main component named
sqlite_master, which functions as a metadata repository for all tables, indexes, and triggers. The SQLite database stores the whole table structure and data in a single file, enabling quick retrieval and efficient data storage. One table row exists within pages that have a fixed size measurement of usually 4 KB. The actual row data appears on these pages while they maintain linked connections to work quickly during retrieval.SQLite implements B-tree organization for indexes since it enables rapid position finding of database records for improved search efficiency. Foreign key constraints exist within metadata, although SQLite implements the enforcement via programmed actions instead of using independent structures. An important feature of SQLite is its self-contained database structure that requires no separate server process to write data modification commands like
INSERTandUPDATE,and DELETE into the database file for direct storage.