SELECT DISTINCT

SELECT DISTINCT is a SQL clause in the SELECT Queries category. Returns only distinct (unique) values from the specified columns. The syntax is SELECT DISTINCT column_name FROM table_name;. It returns unique values. A typical example: SELECT DISTINCT department FROM employees; -- Returns each department only once A close relative is SELECT, which retrieves data from a table. The most fundamental SQL statement. A close relative is SELECT *, which selects all columns from a table. A close relative is WHERE, which filters rows based on a specified condition. More about this category: Core SELECT query clauses — SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, LIMIT. Related SELECT Queries entries: SELECT, SELECT *, WHERE, AND / OR / NOT, IN, BETWEEN, LIKE, IS NULL / IS NOT NULL. This page is part of the free SQL Reference documentation covering 762+ statements, functions, and clauses, each with syntax, parameters, return values, and examples for MySQL, PostgreSQL, SQL Server, and SQLite.