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Full-Featured SQL

Do not be misled by the "Lite" in the name. SQLite has a full-featured SQL implementation, including:

- Tables, indexes, triggers, and views in unlimited quantity
- Up to 32K columns in a table and unlimited rows
- Multi-column indexes
- Indexes can use DESC and COLLATE
- Partial indexes
- Indexes On Expressions
- Clustered indexes
- Covering indexes
- CHECK, UNIQUE, NOT NULL, and FOREIGN KEY constraints.
- ACID transactions using BEGIN, COMMIT, and ROLLBACK
- Nested transactions using SAVEPOINT, RELEASE, and ROLLBACK TO
- Subqueries, including correlated subqueries
- Up to 64-way joins
- LEFT JOIN
- DISTINCT, ORDER BY, GROUP BY, HAVING, LIMIT, and OFFSET
- UNION, UNION ALL, INTERSECT, and EXCEPT
- A rich library of standard SQL functions
- Aggregate functions including DISTINCT aggregates
- UPDATE, DELETE, and INSERT (of course)
- Common table expressions including recursive common table expressions
- Row values
- An advanced query planner
- Full-text search
- R-tree indexes
- JSON support
- The IS operator
- Table-valued functions
- REPLACE INTO
- VACUUM
- REINDEX
- The GLOB operator
- Hexadecimal integer literals
- The ON CONFLICT clause
- The INDEXED BY clause
- Virtual tables
- Multiple databases on the same database connection using ATTACH DATABASE
- The ability to add application-defined SQL functions, including aggregate and table-valued functions.
- Application-defined collating functions

There are many more features not listed above. SQLite may be small in size and have "Lite" in its name, but it is not lacking in capability.