I have a table with two fields:
id(serial), data(jsonb)
And into data I have records with a Datetime field stored as UNIX timestamps:
{"Device":132,"Datetime": 1434166552,...}
I'm trying to query between ranges:
SELECT *
FROM trips
WHERE data->>'Datetime' BETWEEN
EXTRACT(EPOCH FROM date '2014-04-01') AND
EXTRACT(EPOCH FROM date '2014-04-15' + interval '1 day')
AND id = 123
Message
ERROR: operator does not exist: text >= double precision
LINE 3: WHERE data->>'Datetime' BETWEEN
Something I'm doing wrong, please cloud somebody help me? Thanks.
The ->> operator returns an JSON object field as text (see here). You need to cast it :
SELECT *
FROM trips
WHERE (data->>'Datetime')::int
BETWEEN EXTRACT(EPOCH FROM date '2014-04-01')
AND EXTRACT(EPOCH FROM date '2014-04-15' + interval '1 day')
AND id = 123
Related
Is there a way to create a date column combining one column having the year as string and one column containing a date-of-year (doy) as integer?
I am aware of methods like SELECT EXTRACT(DOW FROM TIMESTAMP '2001-02-16 20:38:40'); or SELECT to_char(date_trunc('year', now()) + interval '169 days', 'MM/DD') but when trying to replace the "hard coded" stings with the columns I always get some kind of an error.
SELECT s.id, s.year, s.doy,
((s.year||'-01-01')::date + (s.doy||' days')::interval )::date AS date
FROM table_name AS s
the (s.year||'-01-01') or (s.doy||' days') concats the column value with a required string and the ::date or ::interval changes the resulting string type
You can use the make_date() function and add the number of days directly because date + integer is a valid operation:
select make_date(s.year, 1, 1) + s.doy as date
from ...
Can you please help me to convert the below Oracle query to PostgreSQL query?. Looks like "round" and "trunc" functions are not there in postgreSQL.
Here "intime" is the date and time column i.e date datatype.
select round(((intime - trunc(CURRENT_DATE-1, 'DDD')) * 24),2) from tpe
Below is the posgreSQL format and o/p -2496 days -132:00:00
SELECT (('2021-02-19 08:00:00'::timestamp AT time zone 'EST' - CURRENT_DATE - (interval '1 day'))*24)
Below is ORACLE format and o/p -2464
select ((to_date('02/19/2021 8:00:00','MM/DD/YYYY HH24:MI:SS') - trunc(CURRENT_DATE-1, 'DDD')) * 24) from dual;
And When apply round function in postgreSQL it's throwing error
SELECT round((('2021-02-19 08:00:00'::timestamp AT time zone 'EST' - CURRENT_DATE - (interval '1 day'))*24),2)
"ERROR: function round(interval, integer) does not exist.
Idea is to get same output of oracle's one.
Hi I have a entrytime and exittime timestamp in my database, how can I query it to display only ones where the person exited more than an hour later;
Select * from store where EXTRACT(EPOCH FROM (exittime - entrytime))/3600 >60
That's what I have so far but it won't work, any help would be appreciated.
Just subtract the values and compare it with an interval
Select *
from store
where exittime - entrytime > interval '1 hour';
This assumes that both columns are defined as timestamptz or timestamp
I am new to PostgresSQL where I am running one query where I am looking for activities within last week but it is throwing out of range error
Postgres SQL:
select *
from myTable
where order_time > '2018-12-04 18:22:26' - INTERVAL '7 day'
Error:
IntervalFieldOverflow: ERROR: interval field value out of range: "2018-12-04 18:22:26"
Version: PostgresSQL 9.6
I have tried to resolve my issue by searching online but did not get much help.
Try casting the timestamp literal string:
select *
from myTable
where order_time > '2018-12-04 18:22:26'::timestamp - interval '7 day';
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.