在 SQL 中使用修剪

Question

SELECT
    EVENTDATE

Is returning the date 2023-04-11 00:00:00.000 -0400. I want to trim it to only return "2023-04-11", but am struggling to understand how to use the trim function effectively. I am using substring because it is otherwise returning as a date format and I need it as a string. Only have a beginners educational background so appreciate any and all help. The database I am using is snowflake

Answer 1

To convert a date to string and trim in Snowflake, you could use the to_char function. Also showing date_trunc option if you want to keep as a date.

select eventdate, 
  to_char(eventdate, 'yyyy-mm-dd') as ed2, 
  date_trunc('DAY', eventdate::date) as ed3 --cast as date to remove time

Output:

eventdate	ed2	ed3
2019-09-10 01:20:25.694 +0000	2019-09-10	2019-09-10