I would like to add a day to a date from postgreSQL, so i tried this one :
SELECT * FROM t_ask a
WHERE ask_datesend is null
AND a.ask_date_reception >= ('2019-06-12' + INTERVAL '1 day');
But it doesn't work.
But if i try that i have an answer :
SELECT * FROM t_ask a
WHERE ask_datesend is null
AND a.ask_date_reception >= '2019-06-12'
Little precision in a.ask_date_reception the date is like
"2019-06-12 15:28:01.982"
Try an explicit conversion:
a.ask_date_reception >= ('2019-06-12'::date + INTERVAL '1 day');
Or use timestamp or timestamp with time zone instead of date.
Related
I want to query data for last 30 days including today from redshift table. below is my query.
my date_column's type is 'timestamp without timezone'
select *
from mytable
WHERE date_column BETWEEN current_date - INTERVAL '30 day' AND current_date
order by date_column desc;
It gives the result for 30 days. But it doesn't include today's result.
I want to query for 30 days result including today's result also.
If it's a timestamp don't use between as it also compares the time part. Use a range query:
where date_column >= current_date - interval '30 day'
and date_column < current_date + interval '1 day'
Note that the upper bound is using < together with "tomorrow"
With Postgres this could be simplified to
where date_column >= current_date - 30
and date_column < current_date + 1
but Redshift isn't Postgres and I don't know if that would work there.
I'm using this to try and get all events with a timestamp of today
SELECT systemuserid,ondate from auditlog
WHERE ondate::date = NOW()::date
Performance seems really bad, over 2 minutes. I have a index on ondate.
Is there a more efficient way to do it?
Thanks
Use a range condition:
select *
from auditlog
where ondate >= current_date
and ondate < current_date + 1;
current_date will be converted to a timestamp at midnight, so ondate => current_date will include everything from "today".
And the condition ondate < current_date + 1 will exclude rows with a timestamp of tomorrow (midnight) or later.
I am using postgressql i wish to get the data for currentdate, i want filter the data based on the date
in data base my plandate filed is define as Time stamp with time zone so its showing like this format 2013-09-01 03:22:01.438348+05:30 my query is like this
select ttodoid ,date,details from ttodo where date=currentdate():
but currentdate function giving me just date '2013-10-06' based on this result is no rows how can i manage it for today date detail
UPDATED: One way to do it
SELECT *
FROM ttodo
WHERE date BETWEEN DATE_TRUNC('day', CURRENT_TIMESTAMP)
AND DATE_TRUNC('day', CURRENT_TIMESTAMP)
+ INTERVAL '1 DAY'
- INTERVAL '1 MICROSECOND';
or
SELECT *
FROM ttodo
WHERE date >= DATE_TRUNC('day', CURRENT_TIMESTAMP)
AND date < DATE_TRUNC('day', CURRENT_TIMESTAMP)
+ INTERVAL '1 DAY';
Here is SQLFiddle demo
select * from ttodo where (ttodo.todoplandate::date = current_date) or
(ttodo.todoplandate::date < current_date
I think the easier approach would be just to convert your field to date:
SELECT ttodoid ,date,details FROM ttodo
WHERE CAST(date AS DATE) = current_date;
Notice that, ff you want this query to be indexed, you have to create the index with the cast:
CREATE INDEX idx_ttodo_date ON ttodo ((CAST(date AS DATE)));
Another approach, is instead of casting the field, is checking the intervals, something similar of what petern proposed, but with correct intervals:
SELECT ttodoid ,date,details FROM ttodo
WHERE date >= date_trunc('day', current_timestamp)
AND date < (date_trunc('day', current_timestamp) + interval '1day');
This approach has the advantage that it can use an index on the date field only, which is good if you already have it.
I want to add an interval of 23 hours to the current date and time in PostgreSQL. The query should look something like the following:
SELECT timestamp LOCALTIMESTAMP(0) + interval '23 hours';
For some reason, the preceding statement returns an error. What could be wrong here and why is it not working?
Remove TimeStamp keyword
SELECT LOCALTIMESTAMP(0) + interval '23 hours'
or use
SELECT now() + interval '23 hours'
I have the table users.
Columns:
user_id - integer
user_date - integer(unix timestamp)
Some of rows have user_date and some have NULL.
I need to find all user_id's which user_date includes period between '2012-10-21' and '2012-10-24'
SELECT *
FROM users
WHERE user_date BETWEEN
EXTRACT(EPOCH FROM date '2012-10-21') AND
EXTRACT(EPOCH FROM date '2012-10-24' + interval '1 day');
If you don't want the end date to be included, remove the bit adding a day to that.
select *
from users
where
timestamp 'epoch' + user_date * interval '1 second' between '2012-10-21' and '2012-10-24'
and
user_date is not null