Oracle FIRST_VALUE() Function

Syntax

FIRST_VALUE() OVER (ORDER BY column)

Basic Example

SELECT name, salary,
       FIRST_VALUE() OVER (ORDER BY column) AS result
FROM employees;

When to use it

Use FIRST_VALUE when you need a window operation in Oracle. This page is designed as a quick reference for developers, analysts, and students comparing SQL dialects.

Common mistake

A common mistake is copying syntax from another SQL dialect. Always verify function name, argument order, and formatting tokens for Oracle.

Related SQL Functions

• MySQL ROW_NUMBER() Function
• MySQL RANK() Function
• MySQL DENSE_RANK() Function
• MySQL LAG() Function
• MySQL LEAD() Function
• MySQL FIRST_VALUE() Function

FAQ

Is FIRST_VALUE available in every SQL database?

Not always. Function names and argument behavior can differ across SQL engines.

Can I use this in SELECT queries?

Yes. Most SQL functions are commonly used in SELECT and often in WHERE, ORDER BY, and GROUP BY depending on the function.