Skip to main content
Last updated on

IF THEN ELSE statement

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime 16.3 and above

Executes lists of statements based on the first condition that evaluates to true.

This statement may only be used within a compound statement.

Syntax​

IF condition  THEN { stmt ; } [...]
  [ { ELSEIF condition THEN { stmt ; } [...] } [...] ]
  [ ELSE { elseStmt ; } [...] ]
  END IF

Parameters​

  • condition

    Any expression evaluating to a BOOLEAN.

  • stmt

    A SQL statement to execute if the condition is true.

  • elseStmt

    A SQL statement to execute if no condition is true. That is all condition are false or null.

Examples​

SQL
> BEGIN
    DECLARE choice DOUBLE DEFAULT 3.9;
    DECLARE result STRING;
    IF choice < 2 THEN
      VALUES ('one fish');
    ELSEIF choice < 3 THEN
      VALUES ('two fish');
    ELSEIF choice < 4 THEN
      VALUES ('red fish');
    ELSEIF choice < 5 OR choice IS NULL THEN
      VALUES ('blue fish');
    ELSE
      VALUES ('no fish');
    END IF;
  END;
 red fish