I need to update a date column, with sysdate but 10 mins past. Is there any way to do?
Please help.
Like this probably
select sysdate - 10/(24*60) from dual;
UPDATE the_table
SET the_column = current_timestamp - interval '10' minute
WHERE pk = 42;
It certainly works, see here: http://sqlfiddle.com/#!4/a1986/2
Related
What is the query in Oracle to fetch the data for current_date
the column end_date is like the following
end_date
27-10-16 03:35:00.000000000 PM
23-11-16 11:15:00.000000000 AM
02-11-16 03:00:00.000000000 PM
08-11-16 09:00:00.000000000 AM
Like I am running the following query as
Select * from table1
where end_date < TO_DATE('2017-04-11 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
it is running successfully, but when i replace the query with the current date ... it is not giving the results
Select * from table1
where end_date < TO_DATE(current_date, 'YYYY-MM-DD HH24:MI:SS')
could someone tell me what is the cause the second query is not giving results.
CURRENT_DATE returns date. There is no need to use TO_DATE. The below query should be enough.
Select * from table1
where end_date < current_date;
If you run the below query you'll understand what went wrong for you. Year becomes 0011.
SELECT TO_DATE(current_date, 'YYYY-MM-DD HH24:MI:SS') FROM DUAL;
Please note that CURRENT_DATE returns the current date in the session time zone. SYSDATE returns the current date and time set for the operating system on which the database resides. This means that CURRENT_DATE and SYSDATE can return different results. You can have a look at this
The query worked like this :
Select * from table1
where trunc(end_date) < trunc(sysdate)
Trunc is used to compare the both dates and it fetch the results.
CURRENT_DATE is already a DATE value. You can format the output using to_char if you want.
end_date < CURRENT_DATE should do the job. Or you can set the nls parameter accordingly for a better readability.
If you are comparing only date, without timestamp, you can go with trunc()
I would like to build a query, which returns all records 45 Minutes before the max timestamp.
For example the record with the latest timestamp is:
01.09.2013 11:00:00
Now I would like to have all records from
01.09.2013 10:15:00 to 11:00:00
You can accomplish this by using Max aggregate/analytic function and interval statement:
Here is an example:
select col
from ( select col
, max(col) over() as max_time
from t1) t
where t.col between t.max_time - interval '45' minute
and t.max_time
Result:
Col
--------------------
01.09.13 11:00:00 AM
01.09.13 10:45:00 AM
01.09.13 10:30:00 AM
01.09.13 10:15:00 AM
SQLFiddle Demo
with cte as
(select max(the_timestamp_field) the_timestamp_field
from test)
select
*
from
test,cte
where
test.the_timestamp_field between cte.the_timestamp_field - (1/24*.75)
and cte.the_timestamp_field
will do it.
It can be simple and a little complicated, depending on how do you want to determine the creation time of the record. If there is a date column in your table which indicates the creation time it's simple:
SELECT columns
FROM table
WHERE date_column BETWEEN TO_DATE ('01.09.2013 10:15', 'MM.DD.YYYY HH24:MI') AND
TO_DATE('01.09.2013 11:00', 'MM.DD.YYYY HH24:MI')
If there is no date column you can use SCN_TO_TIMESTAMP(ORA_ROWSCN) pseudo column to determine the creation time, but please note that this feture requires 10g or greater version.
I have a column named date_col of data-type date. What's wrong with this query?
update test set date_col = to_date(sysdate,'DD-Mon-YYYY HH24:MI:SS')
Only date mon and yy is visible. not the time.
How can I make it work?
SYSDATE is yet a date. You don't need to cast SYSDATE to date type because it is a date_
update test
set date_col = sysdate
To see time fraction use to_char:
select to_char(date_col, 'HH24 MI')
from test;
I've got a question about date function on oracle.
I have the following table
statistic_table(
pages AS varchar(10),
date_created AS date
);
I have the following sql
SELECT COUNT(*) FROM statistic_table WHERE date_created BETWEEN sysdate-5 AND sysdate-1
and
SELECT COUNT(*) FROM statistic_table WHERE date_created BETWEEN to_date('12-AUG-2011') AND to_date('16-AUG-2011');
the question is, why is it return different numbers. assuming sysdate-5 returns 12-aug-2011 and sysdate-1 returns 16-aug-2011
Any help would be much appreciated!
Cheers,
sysdate - 5 will give you a date with the current time. So if I ran it at 1pm precisely, the query would be equivalent to:
select (*)
FROM statistic_table
WHERE date_created BETWEEN to_date('12-Aug-2011 13:00:00')
AND to_date('16-Aug-2011 13:00:00')
whereas the second query is:
select (*)
FROM statistic_table
WHERE date_created BETWEEN to_date('12-Aug-2011 00:00:00')
AND to_date('16-Aug-2011 00:00:00')
you should probably try this instead:
select (*)
FROM statistic_table
WHERE date_created BETWEEN trunc(sysdate) -5
AND trunc(sysdate) -1
A date in Oracle is a point in time with a precision of a second.
SYSDATE returns the current date and time and is therefore not the same as to_date('17-AUG-2011'):
SQL> SELECT to_char(sysdate, 'dd-mon-yyyy hh24:mi:ss') FROM DUAL;
TO_CHAR(SYSDATE,'DD-MON-YYYYHH
------------------------------
17-aug-2011 15:52:13
Use the TRUNC function if you only want the date component:
SQL> SELECT to_char(trunc(sysdate), 'dd-mon-yyyy hh24:mi:ss') FROM DUAL;
TO_CHAR(TRUNC(SYSDATE),'DD-MON
------------------------------
17-aou-2011 00:00:00
Because SYSDATE includes a time component, so if the current time is 11:22:33, then
SELECT COUNT(*) FROM statistic_table
WHERE date_created BETWEEN sysdate-5 AND sysdate-1
is actually equivalent to
SELECT COUNT(*) FROM statistic_table
WHERE date_created BETWEEN to_date('12-AUG-2011 11:22:33','DD-MON-YYYY HH24:MI:SS')
AND to_date('16-AUG-2011 11:22:33','DD-MON-YYYY HH24:MI:SS')
To avoid the time component do this:
SELECT COUNT(*) FROM statistic_table
WHERE date_created BETWEEN TRUNC(sysdate)-5 AND TRUNC(sysdate)-1
An Oracle DATE always has a day and a time component.
sysdate-5 returns a date exactly 5 days ago. If today is August 17 at 10 AM, for example, sysdate-5 returns August 12 at 10 AM.
to_date('12-AUG-2011', 'DD-MON-YYYY'), on the other hand, returns August 12 at midnight. So it returns a date that is 10 hours earlier than sysdate-5.
sysdate auto returns with a time component as mentioned by the previous answers.
When using to_date it is converting a string to a date. With this being said you can pass in parameters to make it return the same thing.
Have a look at this link that explains it.
to_date parameters
I have to get data from Oracle Table in which I have one datefield called lastupdatedDate and I want to get only that rows back in which lastupdatedDate is in last 10 mins of sysdate
For example, if in my table I have lastupdateDate as 05/20/09 4:20:44 then I want this row back in my result if I run the query in between 05/20/09 4:20:44 and 05/20/09 4:30:44, and not if if I run the query at 05/20/09 5:31:44.
Or slightly more readable:
select *
from mytable
where lastupdatedDate > sysdate - interval '10' minute
select *
from mytable
where lastupdatedDate > sysdate - interval '10' minute
select sysdate - 10/(24*60) from dual;
See above example to get sysdate minus ten minutes, now just add to your query