Categories: Date/Time

DATE_SUB

Returns the difference of two expressions of time as another expression of time.

Syntax

DATE_SUB(date_expression STRING, days INTEGER) → DATE

• date_expression: A string-formatted date in the format ‘YYYY-MM-DD’.
• days: The number of days to be subtracted from the specified date.

Examples

SELECT DATE_SUB('2022-01-01', 2)
-- 2021-12-30

SELECT DATE_SUB('2022-01-01', -2)
-- 2022-01-03

DATE_SUB(date_expression DATE, days INTEGER) → DATE

• date_expression: The date, in the format ‘YYY-MM-DD’, to subtract days from. The value can be either a database column in DATE format, or literal value explicitly converted to DATE.
• days: A 32-bit integer of the number of days to be subtracted from the specified date.

Examples

SELECT DATE_SUB(DATE '2022-01-01', 30)
-- 2021-12-02

SELECT DATE_SUB(DATE '2022-01-01', -30)
-- 2022-01-31

DATE_SUB(date_expression STRING, time_interval INTERVAL) → TIMESTAMP

• date_expression: A string-formatted date in the format ‘YYYY-MM-DD’.
• time_interval: A CAST of a number to one of these intervals: DAY, MONTH, YEAR.

Examples

SELECT DATE_SUB('2022-01-01', CAST(2 AS INTERVAL DAY))
-- 2021-12-30 00:00:00

SELECT DATE_SUB('2022-01-01', CAST(-2 AS INTERVAL DAY))
-- 2022-01-03 00:00:00

DATE_SUB(date_expression DATE, time_interval INTERVAL) → TIMESTAMP

• date_expression: The date, in the format ‘YYY-MM-DD’, to subtract the time interval from. The value can be either a database column in DATE format, or literal value explicitly converted to DATE.
• time_interval: A CAST of a number to one of these intervals: DAY, MONTH, YEAR.

Examples

SELECT DATE_SUB(DATE '2022-01-01', CAST(30 AS INTERVAL DAY))
-- 2021-12-02 00:00:00

DATE_SUB(timestamp_expression STRING, time_interval INTERVAL) → TIMESTAMP

• timestamp_expression: A string-formatted timestamp in the format ‘YYYY-MM-DD HH24:MI:SS’.
• time_interval: A CAST of a number to one of these intervals: SECOND, MINUTE, HOUR, DAY, MONTH, YEAR.

Examples

SELECT DATE_SUB('2022-01-01 12:00:00', CAST(30 AS INTERVAL DAY))
-- 2021-12-02 00:00:00

SELECT DATE_SUB('2022-01-01 12:00:00', CAST(-30 AS INTERVAL DAY))
-- 2022-01-31 00:00:00

DATE_SUB(timestamp_expression TIMESTAMP, time_interval INTERVAL) → TIMESTAMP

• timestamp_expression: The timestamp, in the format ‘YYYY-MM-DD HH:MM:SS’, to subtract days from. The value can be either a database column in TIMESTAMP format, or literal value explicitly converted to TIMESTAMP.
• time_interval: A CAST of a number to one of these intervals: SECOND, MINUTE, HOUR, DAY, MONTH, YEAR.

Examples

SELECT DATE_SUB(TIMESTAMP '2022-01-01 12:00:00', CAST(30 AS INTERVAL DAY))
-- 2021-12-02 12:00:00

SELECT DATE_SUB(TIMESTAMP '2022-01-01 12:00:00', CAST(-30 AS INTERVAL DAY))
-- 2022-01-31 12:00:00

DATE_SUB(time_expression TIME, time_interval INTERVAL) → TIME

• time_expression: The time, in the format ‘HH:MM:SS’, to subtract the time interval from. The value can be either a database column in TIMESTAMP format, or literal value explicitly converted to TIMESTAMP.
• time_interval: A CAST of a number to one of these intervals: SECOND, MINUTE, HOUR.

Examples

SELECT DATE_SUB(TIME '00:00:00', CAST(30 AS INTERVAL MINUTE))
-- 84600

SELECT DATE_SUB(TIME '00:00:00', CAST(-30 AS INTERVAL MINUTE))
-- 00:30:00