Multiply

The multiply operator (*) multiplies two operands and returns the product.

Note: A configuration parameter is available to control whether this operator allows precision/scale to exceed 38. See Decimal Digit Limitation on Functions, for details.

DECIMAL and NUMERIC Data Types

When the multiply operator is applied to operands that include DECIMAL or NUMERIC data types, the output data type, precision and scale might depend on the data type, precision and scale of the operands, as shown below.

Syntax

operand1 * operand2

Remarks

•

The order of the inputs (operands) has no effect on the output data type.

•

The outputs for multiplying DECIMAL and NUMERIC data types with each other and with other data types are shown in the table.

Inputs	Output
DECIMAL(p1,s1) * DECIMAL(p2,s2)	DECIMAL(p1+p2,s1+s2)
DECIMAL(p1,s1) * NUMERIC(p2,s2)
NUMERIC(p1,s1) * NUMERIC(p2,s2)	NUMERIC(p1+p2,s1+s2)
DECIMAL(p1,s1) * TINYINT	DECIMAL(p+3,s)
DECIMAL(p1,s1) * SMALLINT	DECIMAL(p+5,s)
DECIMAL(p1,s1) * INTEGER	DECIMAL(p+10,s)
DECIMAL(p1,s1) * BIGINT	DECIMAL(p+19,s)
DECIMAL(p,s) * not-DECIMAL-or-NUMERIC	DECIMAL(p,s)
NUMERIC(p,s) * not-DECIMAL-or-NUMERIC	NUMERIC(p,s)

Examples

DECIMAL(6,2) * TINYINT -> DECIMAL(9,2)

DECIMAL(6,2) * SMALLINT -> DECIMAL(11,2)

INTERVAL Type

INTERVAL can be multiplied by numbers. The output data type is INTERVAL.

Syntax

INTERVAL * NUMERIC

Examples

INTERVAL '1' DAY * 10 = INTERVAL '10 00:00:00' DAY TO SECOND

INTERVAL '10' DAY * .1 = INTERVAL '1 00:00:00' DAY TO SECOND

Mixed Data Types

The multiply operator can be applied to operands that have a wide variety of data types, including operands comparable or castable to data types that can accept arithmetic operators.

Syntax

operand1 * operand2

Remarks

The operand data types and resulting output data types are shown in the table.

Operand1	Operand2	Output
TINYINT SMALLINT INTEGER BIGINT	TINYINT SMALLINT INTEGER BIGINT STRING	INTEGER
TINYINT SMALLINT INTEGER BIGINT	FLOAT REAL	FLOAT
TINYINT SMALLINT INTEGER BIGINT	DECIMAL NUMERIC	DECIMAL
FLOAT REAL	TINYINT SMALLINT INTEGER BIGINT DECIMAL	FLOAT
FLOAT REAL	FLOAT REAL
FLOAT REAL	DECIMAL NUMERIC	DECIMAL
DECIMAL NUMERIC	TINYINT SMALLINT INTEGER BIGINT STRING
DECIMAL NUMERIC	FLOAT REAL
DECIMAL NUMERIC	DECIMAL NUMERIC	FLOAT
STRING	STRING TINYINT SMALLINT INTEGER BIGINT NUMERIC FLOAT REAL DECIMAL	DECIMAL INTEGER INTEGER INTEGER INTEGER DECIMAL FLOAT FLOAT DECIMAL
NULL	TINYINT SMALLINT INTEGER BIGINT NUMERIC FLOAT REAL DECIMAL STRING NULL	NULL
TINYINT SMALLINT INTEGER BIGINT NUMERIC FLOAT REAL DECIMAL STRING	NULL
INTERVAL	NUMERIC	INTERVAL