How to randomly generate date between specific date in mysql

Question

I tried this :

SELECT TIMESTAMPADD(SECOND, FLOOR(RAND() * TIMESTAMPDIFF(SECOND, 2017-01-01', '2017-02-01 ';)), 2017-01-01 );

I want to generate randomly date from 1 of month to 30

Answer 1

尝试这个

SELECT TIMESTAMPADD(SECOND, FLOOR(RAND() * TIMESTAMPDIFF(SECOND, '2013-01-07', '2013-12-24 ')), '2013-01-07')

Answer 2

SELECT DATE_FORMAT(FROM_UNIXTIME(
 ROUND((RAND() * (UNIX_TIMESTAMP('2013-12-24')-UNIX_TIMESTAMP('2013-01-07')))+UNIX_TIMESTAMP('2013-01-07'))
),'%Y-%m-%d')

For first UNIX_TIMESTAMP() function, use higher date, for second and third UNIX_TIMESTAMP() function, use lower date.

Answer 3

In MS SQL:

DECLARE @StartDT DATE = '2017-01-01' , @EndDT DATE = '2017-01-31'

SELECT DATEADD(DAY, nbr - 1, @StartDT) FROM ( SELECT ROW_NUMBER() OVER ( ORDER BY c.object_id ) AS Nbr FROM sys.columns c ) nbrs WHERE nbr - 1 <= DATEDIFF(DAY, @StartDT, @EndDT)

Answer 4

well I think this is solution

SELECT '2017-01-01' +  INTERVAL ROUND(RAND() * (30-1) + 1) DAY