问题
I'm using PowerPivot with an SQL Server database and I'm working with a specific table that includes a DateTime column. I'd like to select the data from the table where that DateTime is within the last 48 hours. I'm using a query currently and hoping to achieve something like
... WHERE DT > DATE_SUB(CURRENT_TIMESTAMP, INTERVAL +2 DAY)
I'm getting a syntax error at DAY in this particular way. Is this the best way to do it? If so, what's wrong with how I've written it? If not, what's a better way?
回答1:
Sql-Server
WHERE DateTimeColumn >= DATEADD(HOUR, -48, GETDATE())
Mysql
WHERE DateTimeColumn > DATE_SUB(NOW(), INTERVAL 48 HOUR)
来源：https://stackoverflow.com/questions/21586548/get-data-from-last-48-hours