How to query DATETIME field using only date in Microsoft SQL Server?

Question

I have a table TEST with a DATETIME field, like this:

ID NAME DATE
1 TESTING 2014-03-19 20:05:20.000


        

Answer 1

There is a problem with dates and languages and the way to avoid it is asking for dates with this format YYYYMMDD.

This way below should be the fastest according to the link below. I checked in SQL Server 2012 and I agree with the link.

select * from test where date >= '20141903' AND date < DATEADD(DAY, 1, '20141903');

• Bad habits to kick : mis-handling date / range queries

Answer 2

use this

select * from TableName where DateTimeField > date() and  DateTimeField < date() + 1

Answer 3

This works for me for MS SQL server:

select * from test
where 
year(date) = 2015
and month(date) = 10
and day(date)= 28 ;

Answer 4

Test this query.

SELECT *,DATE(chat_reg_date) AS is_date,TIME(chat_reg_time) AS is_time FROM chat WHERE chat_inbox_key='$chat_key' 
                         ORDER BY is_date DESC, is_time DESC

Answer 5

SELECT * FROM test where DATEPART(year,[TIMESTAMP]) = '2018'  and  DATEPART(day,[TIMESTAMP]) = '16' and  DATEPART(month,[TIMESTAMP]) = '11'