Question

I have a table with a datetime record.
I need to select the record using date or time.

Let’s say that I have this format 1/1/2001 13:33:00 in the database

My question is: If I enter the date, the time or both, I should obtain the rows that have either same date or the same time. How can I achieve this?

The convert function CONVERT(VARCHAR(10), Travel.Travel_DateTime, 110)
returns the dates if their time is like the default 00:00:00

Answer 1

(Note that I’m assuming MySQL)

Just use the DATE and TIME functions:

SELECT blah FROM tbl WHERE DATE(some_datetime_field) = '2012-04-02';

That will select any rows such that the date part of some_datetime_field is 4 Apr 2012.

The same idea applies with TIME:

SELECT blah FROM tbl WHERE TIME(some_datetime_field) = '14:30:00';

So, to get all rows where the date is 5 Apr 2012 or the time is 2:30 PM, you just combine the two:

    SELECT blah FROM tbl WHERE DATE(some_datetime_field) = '2012-04-02' OR TIME(some_datetime_field) = '14:30:00';

—Edit—

For SQL server, you should be able to use:

CONVERT(DATE, some_datetime_field) = '2012-04-02'

(From How to return the date part only from a SQL Server datetime datatype)