Select records from start of month to current date

问题

I'm trying to select records that were added to the database between the start of the current month and the current day - I more or less know how to get records from the current day, and within a specific time period - but how do I get it so it starts from the beginning of the current calendar month?

回答1:

DECLARE @sm DATETIME;
SET @sm = DATEADD(DAY, 1-DAY(GETDATE()), DATEDIFF(DAY, 0, GETDATE()));

SELECT columns 
    FROM dbo.foo 
    WHERE datetime_column >= @sm;

回答2:

WHERE YEAR([Date])=YEAR(GETDATE())
AND MONTH([Date])=MONTH(GETDATE())
AND DAY([Date])<=DAY(GETDATE())

回答3:

select *
from YourTable
where DateCol >= dateadd(month, datediff(month, 0, getdate()), 0)

回答4:

Basically what you're doing here is Getting the Month, appending '/01' and then appending the year. Casting it as a string to handle the appending, then casting it as a DateTime.

So it's a little bit more involved than doing any sort of date math, but it's readable I think.

DECLARE @firstOfMonth DATETIME
SET @firstOfMonth = CAST(CAST(DATEPART(mm, GetDate()) as varchar) + '/01/' + cast(DATEPART(yyyy, Getdate()) as varchar) as datetime)

WHERE DateToCheck BETWEEN @firstOfMonth and GetDate()

回答5:

WHERE DateToCheck > LAST_DAY(CURDATE()-INTERVAL 1 MONTH))

http://www.sqlfiddle.com/#!2/3d673/2/0

来源：https://stackoverflow.com/questions/7403390/select-records-from-start-of-month-to-current-date