Função MySQL SUBDATE()

Subtrair 10 dias de uma data e retornar a data:

SELECT SUBDATE("2017-06-15", INTERVAL 10 DAY);

Definição e uso

A função SUBDATE() subtrai um intervalo de data/hora de uma data e retorna a data.

SUBDATE(date, INTERVAL value unit)

OU:

SUBDATE(date, days)

Parameter	Description
date	Required. The original date
days	Required. The number of days to subtract from date
value	Required. The value of the time/date interval to subtract. Both positive and negative values are allowed
unit	Required. The type of interval. Can be one of the following values: MICROSECOND SECOND MINUTE HOUR DAY WEEK MONTH QUARTER YEAR SECOND_MICROSECOND MINUTE_MICROSECOND MINUTE_SECOND HOUR_MICROSECOND HOUR_SECOND HOUR_MINUTE DAY_MICROSECOND DAY_SECOND DAY_MINUTE DAY_HOUR YEAR_MONTH

Trabalha em:	Do MySQL 4.0

Subtraia 15 minutos de uma data e retorne a data:

SELECT SUBDATE("2017-06-15 09:34:21", INTERVAL 15 MINUTE);

Subtrair 3 horas de uma data e retornar a data:

SELECT SUBDATE("2017-06-15 09:34:21", INTERVAL 3 HOUR);

Adicione 2 meses a uma data e retorne a data:

SELECT SUBDATE("2017-06-15", INTERVAL -2 MONTH);