SQL SELECT without FROM

SQL SELECT without FROM is a SQL statement in the SELECT Queries category. Modern SQL allows SELECT without FROM for constants and expressions. Oracle requires FROM DUAL. It returns expression result. 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 SELECT DISTINCT, which returns only distinct (unique) values from the specified columns. More about this category: Core SELECT query clauses — SELECT, FROM, WHERE, GROUP BY, HAVING, ORDER BY, LIMIT. Related SELECT Queries entries: SELECT, SELECT *, SELECT DISTINCT, WHERE, AND / OR / NOT, IN, BETWEEN, LIKE. 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.