使用很简单:

convert(date, Btch_Time)

在下面的例子:

表:

Efft_d       Loan_I  Loan_Purp_Type_C   Orig_LTV    Curr_LTV    Schd_LTV    Un_drwn_Bal_a      Btch_Time            Strm_I  Btch_Ins_I
2014-05-31  200312500   HL03             NULL         1.0000    1.0000         1.0000      2014-06-17 11:10:57.330  1005    24851e0a-53983699-14b4-69109

Select * from helios.dbo.CBA_SRD_Loan where Loan_I in ('200312500') and convert(date, Btch_Time) = '2014-06-17'

SQL Server 2008:

Convert(date, getdate())  

请参考https://learn.microsoft.com/en-us/sql/t-sql/functions/getdate-transact-sql

CAST(
        FLOOR( 
             CAST( GETDATE() AS FLOAT ) 
        )

AS DATETIME
)

http://www.bennadel.com/blog/122-Getting-Only-the-Date-Part-of-a-Date-Time-Stamp-in-SQL-Server.htm

试试这个。

SELECT DATEADD(DD, 0, DATEDIFF(DD, 0, GETDATE()))

如果你想返回一个日期类型只是一个日期使用

CONVERT(date, SYSDATETIME())

or

SELECT CONVERT(date,SYSDATETIME()) 

or

DECLARE @DateOnly Datetime
SET @DateOnly=CONVERT(date,SYSDATETIME())

如果你需要时间为0，比如2018-01-17 00:00:00.000:

Select convert (datetime, convert (date, getdate ())， 121)