Jaa

* (asterisk sign) operator

  • Artikkeli

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime

Returns multiplier multiplied by multiplicand.

Syntax

multiplier * multiplicand

Arguments

  • multiplier: A numeric or INTERVAL expression.
  • multiplicand: A numeric expression or INTERVAL expression.

You may not specify an INTERVAL for both arguments.

Returns

  • If both multiplier and multiplicand are DECIMAL, the result is DECIMAL.
  • If multiplier or multiplicand is an INTERVAL, the result is of the same type.
  • If both multiplier and multiplicand are integral numeric types, the result is the larger of the two types.
  • In all other cases the result is a DOUBLE.

If either the multiplier or the multiplicand is 0, the operator returns 0.

If the result of the multiplication is outside the bound for the result type an ARITHMETIC_OVERFLOW error is raised.

Use try_multiply to return NULL on overflow.

Warning

In Databricks Runtime, if spark.sql.ansi.enabled is false, the result “wraps” if it is out of bounds for integral types, and the result is NULL for fractional types.

Examples

> SELECT 3 * 2;
 6

> SELECT 2L * 2L;
 4L

> SELECT INTERVAL '3' YEAR * 3;
 9-0

> SELECT 100Y * 100Y;
 Error: ARITHMETIC_OVERFLOW