I want to just get the hours from the timestamp on sql.
Time stamp
Please tag your rdbms next time.
For MySQL, you can use HOUR ( )
For SQL-Server, you can use DATEPART ( )
Related
I am trying to calculate the average of ride_length (hh:mm:ss format) on Big Query.
1
For example, I am aiming for a result that says 1 instead of 01:00:00.
I tried using the CAST function to convert it into an integer but it didn't work. I also tried following the steps of answers to questions similar to mine but they didn't work as well.
You can use Extract
function which will return the specified part of the time expressions. You can try the below queries.
To extract hour from the TIME expression you can consider the below query.
Query:
SELECT EXTRACT(HOUR FROM TIME "01:00:00") as hour;
Output:
To extract hour from TIMESTAMP expression below query can be considered.
Query:
select EXTRACT(hour from timestamp "2023-01-13 15:30:00" AT TIME ZONE "America/Los_Angeles") as hour
Output:
To extract hour from the TIME column you can consider the below sample query.
Query:
SELECT time,EXTRACT(HOUR FROM (time)) AS hour from `bigquery-public-data.austin_incidents.incidents_2008` limit 10
Output:
I would like to extract the date & hour from UTC time from the below table in bigquery. I have used timestamp for getting the date or time using the below code. I would like to apply the code for the entire column. How to apply timestamp for the entire column? Can you please assist with it?
SELECT EXTRACT(HOUR FROM TIMESTAMP "2020-05-03 16:49:47.583494")
My data is like this
I want result like this:
You can do it this way:
SELECT my_column AS original_value,
DATE_FORMAT(STR_TO_DATE(my_column, "%Y-%m-%d %H:%i:%s.%f UTC"), "%e/%m/%Y") AS date,
DATE_FORMAT(STR_TO_DATE(my_column, "%Y-%m-%d %H:%i:%s.%f UTC"), "%l%p") AS hour
FROM my_table;
I am assuming that the column is VARCHAR, that's why I am converting it to DATE.
Output:
Demo:
You can check the demo here.
Edit:
My initial thought was that OP wanted the query for MySQL (probably BigQuery is based on that). But it turns out that BigQuery is not based on MySQL. So you can use FORMAT_TIMESTAMP in BigQuery, this is how the query would look:
SELECT Occurrence AS original_value,
FORMAT_TIMESTAMP("%e/%m/%Y", Occurrence) AS date,
FORMAT_TIMESTAMP("%l%p", Occurrence) AS hour
FROM mytable
I need a help. How to convert timestamp to minute in sql query? Really appreciate it. Below are my table.
Here is my timestamp table field. Need to convert it in minute to get time duration
Select DATEPART(mi, changedate) AS minute from Table_01
Hope this will help you
What do you mean with "convert"?
It is always helpful to give an example.
There are lots of functions in Db2 - very helpful new ones in Db2 11.1 - check out (depending on your goal):
date_trunc ('minutes', current timestamp) as minutes
date_part('minutes', current timestamp) as date_part_minutes
minutes_between('01.03.2016', '01.01.1970') as minutes_between
is there an alternative to the to_char() function in impala? I want to set a timestamp field where the date and minutes are fixed and only showing the hours, but can't seem to find an alternative.
This is my existing code in postgres which I need to convert to impala.
select to_char(starttime, '1900-01-01 HH24:00:00')::timestamp
Any help is appreciated!
In Impala, you can use
SELECT hours_add('1900-01-01', hour(now()));
to get the same result
function hour extracts the hour part from a timestamp
function hours_add adds hour to a timestamp
How to get the date and time only up to minutes, not seconds, from timestamp in PostgreSQL. I need date as well as time.
For example:
2000-12-16 12:21:13-05
From this I need
2000-12-16 12:21 (no seconds and milliseconds only date and time in hours and minutes)
From a timestamp with time zone field, say update_time, how do I get date as well as time like above using PostgreSQL select query.
Please help me.
There are plenty of date-time functions available with postgresql:
See the list here
http://www.postgresql.org/docs/9.1/static/functions-datetime.html
e.g.
SELECT EXTRACT(DAY FROM TIMESTAMP '2001-02-16 20:38:40');
Result: 16
For formatting you can use these:
http://www.postgresql.org/docs/9.1/static/functions-formatting.html
e.g.
select to_char(current_timestamp, 'YYYY-MM-DD HH24:MI') ...
To get the date from a timestamp (or timestamptz) a simple cast is fastest:
SELECT now()::date
You get the date according to your local time zone either way.
If you want text in a certain format, go with to_char() like #davek provided.
If you want to truncate (round down) the value of a timestamp to a unit of time, use date_trunc():
SELECT date_trunc('minute', now());
This should be enough:
select now()::date, now()::time
, pg_typeof(now()), pg_typeof(now()::date), pg_typeof(now()::time)