First day of the month function?

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id10t
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Re: First day of the month function?

Post by id10t » Wed Oct 09, 2013 2:32 pm

Hi!

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Last edited by id10t on Sat May 09, 2015 3:33 pm, edited 1 time in total.

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JimKnicely
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Re: First day of the month function?

Post by JimKnicely » Wed Oct 09, 2013 3:17 pm

I was going to say the same thing!
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Re: First day of the month function?

Post by Vertica4VK » Fri Mar 06, 2015 2:28 am

Hello Jim

I have similar question - trying to figure out first day of month from a table which has a date column - I have gone through previous posts - but i get below error - i tried

dbadmin=> select to_date('my_rpt_mth_dt', 'YYYY-MM-01') from dev_data_monthly
ERROR 2005: Invalid input for YYYY: "my_rpt_mth_dt"

( i figured out another solution - but want to know if - vertica has any inbuilt formatting of date function... so i can use in above situation)

Thanks

VK

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Re: First day of the month function?

Post by JimKnicely » Fri Mar 06, 2015 1:15 pm

Hi VK,

Instead of using the single quotes surrounding the my_rpt_mth_dt column, try the TO_CHAR function.

Code: Select all

dbadmin=> select my_rpt_mth_dt,  to_date(to_char(my_rpt_mth_dt), 'YYYY-MM-01') from dev_data_monthly;
 my_rpt_mth_dt |  to_date
---------------+------------
 2015-03-06    | 2015-03-01
(1 row)
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Note: I work for HPE. My views, opinions, and thoughts expressed here do not represent those of my employer.

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