I have a table in MySQL. What would be the sql statement look like to add say 2 days to the current date value in the table?
UPDATE classes
SET
date = date + 1
where id = 161
this adds one second to the value, i don’t want to update the time, i want to add two days?
3
Assuming your field is a date type (or similar):
SELECT DATE_ADD(`your_field_name`, INTERVAL 2 DAY)
FROM `table_name`;
With the example you’ve provided it could look like this:
UPDATE classes
SET `date` = DATE_ADD(`date` , INTERVAL 2 DAY)
WHERE `id` = 161;
This approach works with datetime , too.
0
UPDATE table SET nameofdatefield = ADDDATE(nameofdatefield, 2) WHERE ...
4
This query stands good for fetching the values between current date and its next 3 dates
SELECT * FROM tableName
WHERE columName BETWEEN CURDATE() AND DATE_ADD(CURDATE(), INTERVAL 3 DAY)
This will eventually add extra 3 days of buffer to the current date.
0
You can leave date_add function.
UPDATE `table`
SET `yourdatefield` = `yourdatefield` + INTERVAL 2 DAY
WHERE ...
update tablename set coldate=DATE_ADD(coldate, INTERVAL 2 DAY)
2
For your need:
UPDATE classes
SET `date` = DATE_ADD(`date`, INTERVAL 2 DAY)
WHERE id = 161
1
DATE_ADD(FROM_DATE_HERE, INTERVAL INTERVAL_TIME_HERE DAY)
will give the Date after adjusting the INTERVAL
eg.
DATE_ADD(NOW(), INTERVAL -1 DAY) for deducting 1 DAY from current Day
DATE_ADD(NOW(), INTERVAL 2 DAY) for adding 2 Days
You can use like
UPDATE classes WHERE date=(DATE_ADD(date, INTERVAL 1 DAY)) WHERE id=161
1
SELECT DATE_ADD(CURDATE(), INTERVAL 2 DAY)
1
SET date = DATE_ADD( fieldname, INTERVAL 2 DAY )
2
SELECT ADDDATE(d,INTERVAL 1 DAY)
from table
0