i am using this below sql query to get the table data those was updating yesterday between 12:00 AM to 11:59 AM. In this query i need to put date on daily basis but i don't want to put date again and again so i want another query to get table data without updating date.
select *
from transaction_persistence
where currentdatetimestamp between '18-MAY-2017 12.00.00 AM' and '18-MAY-2017 11.59.59 AM';
Use now() or curdate():
select *
from transaction_persistence
where currentdatetimestamp >= CURDATE() and
currentdatetimestamp < CURDATE() + interval 12 hour;
Note: When working with date or date/time values, BETWEEN is dangerous. In your case, you are missing one second of every half day.
EDIT:
You get Oracle errors with Oracle, not MySQL:
select *
from transaction_persistence
where currentdatetimestamp >= trunc(sysdate) and
currentdatetimestamp < trunc(sysdate) + 0.5
Use DATE_SUB() and CURDATE()
SELECT *
FROM transaction_persistence
WHERE currentdatetimestamp<CURDATE() AND currentdatetimestamp>=DATE_SUB(CURDATE(),INTERVAL 1 DAY)
Related
I have below select query where i am trying to get the data only for today date but its not returning anything:
select * from V_TER
where SYSTEM_INSERTED_AT = SYSDATE;
The SYSTEM_INSERTED_DATE is of Date datatype and the value is stored in this fields as for example 2021-01-15 15:17:13
The problem in Oracle is that dates can have time components both in the data and sysdate itself.
I would recommend checking for any time on the current date:
where system_inserted_at >= trunc(sysdate) and
system_inserted_at < trunc(sysdate) + interval '1' day
This is generally optimizer-friendly. If you don't care about that, then:
where trunc(system_inserted_at) = trunc(sysdate)
I would like to filter out the data using a sub query in the interval function
Following is the query i use
SEL * FROM my_table WHERE MY_DATE < CURRENT_DATE- INTERVAL '30' MONTH;
The above query works, However i want to parameterize the period '30' using a sub query. Please suggest how to achieve this.
Thanks in Advance
Don't use interval calculations with year/month as it will fail, e.g. DATE '2016-12-31' + INTERVAL '30' MONTH results in 2019-06-31 (according to Standard SQL) which obviously doesn't exist.
SELECT *
FROM my_table
WHERE MY_DATE < ADD_MONTHS(CURRENT_DATE, (SELECT -col FROM tab));
If col is actually an INTERVAL you need to cast it to an INT.
I am trying to find records from yesterdays 10:30 PM till today's 10:30 PM with SQL query. Please help me with sql query to find such records.
Maybe its a duplicate question, if so please link me to that. Don't want any pl-sql function.
A simple way to do this is to subtract times and compare dates. So, one way is:
select t.*
from t
where trunc(datecol) = trunc(sysdate - 1.5/24);
It is more efficient to use a direct comparison (because Oracle can more readily use an index):
select t.*
from t
where datecol >= trunc(sysdate) - 1.5/24 and
datecol < trunc(sysdate) + 1 - 1.5/24;
Note: You can also use interval for this purpose, if you are less old-fashioned than I am:
select t.*
from t
where datecol >= trunc(sysdate) - interval '90' minute
datecol < trunc(sysdate) + interval '1' day - interval '90' minute;
You can get the yesterday date with SYSDATE - 1. You would need something like this:
SELECT ...
FROM ...
WHERE date_field BETWEEN SYSDATE-1 AND SYSDATE
I have query in Mysql which return minutes using TIMESTAMPDIFF in table. But now i have migrated my data to Oracle. So i want to use the same query to get the TIMESTAMPDIFF in a table in Oracle. Oracle also dont support NOW() function in mysql. The PROCESS_START_DATE column in query have data which contains date and time. I tried EXTRACT function in oraclebut did not work. Here is my query :
select * from(
select trunc(abs(to_date('27/01/2015 08:00:00','dd/mm/yyyy hh:mi:ss') - PMS.PROCESS_START_DATE)*24*60),PM.NAME,PM.ENABLED
from PROCESS_MONITOR_STATISTIC PMS
JOIN PROCESS_MONITOR PM ON PM.ID=PMS.PROCESS_MONITOR_ID
WHERE PM.ENABLED=1 AND PM.NAME= 'WORKFLOWENGINE1'
order by PMS.PROCESS_START_DATE desc
)
where ROWNUM = 1
You can do something like this:
--in case you are working with dates
select trunc(abs(to_date('26/01/2015 08:00:00','dd/mm/yyyy hh:mi:ss') - sysdate)*24*60) from dual;
This represent difference in minutes between a date and now(sysdate) with dates.
--timestamp case
select abs(
extract (day from diff)*24*60 + extract (hour from diff)*60 + extract (minute from diff)) from
(select to_timestamp('27/01/2015 09:07:00','dd/mm/yyyy hh:mi:ss') - systimestamp diff from dual);
This represent difference in minutes between a date and now(systimestamp) with timestamp.
Edit:
This query calculate minutes in a year:
select 365*24*60 from dual -- this returns 525600
This is your query. i change the time. Check that the difference between these dates is one year and five minutes
select trunc(abs((to_date('26/01/14 09:00:00','dd/mm/yy hh24:mi:ss')-
to_date('26/01/2015 09:05:01','dd/mm/yyyy hh24:mi:ss'))*24*60)) from dual;
So, when run this query result is 525605, five minutes more than a year. So it looks to be working.
I have a table with date column in it. I need to fetch the records from it based on
the given date.
Currently when i used the query:
select * from workingemployee_data where created_date like '20-Jan-2012'
I am getting those records which have created_date on 20-Jan-2012
But i want to get the records those were created 10 days earlier to a given
date (i.e) 20-Jan-2012.
Please suggest me on this.
This gives all records between today and 10 days ago:
SELECT *
FROM workingemployee
WHERE created_date BETWEEN sysdate - INTERVAL '10' DAY
AND sysdate
This gives all records entered exactly 10 days ago:
SELECT *
FROM workingemployee
WHERE created_date = sysdate - INTERVAL '10' DAY
Replace sysdate with exact date if you want.
Why do you use like and not = ?
Assuming that created_date is of type DATE, it's bad practice to rely on implicit conversion according to NLS_DATE_FORMAT (this is what happens when you compare a date and a string)
dd-mon-yyyy isn't a good format for querying since it deffers according to NLS_LANGUAGE better use mm for months numbers
So, either use #mvp's answer or do something like this:
SELECT *
FROM workingemployee
WHERE trunc(created_date) = to_date('20-01-2013', 'dd-mm-yyyy') - 10
SELECT *
FROM workingemployee
WHERE created_date > sysdate - INTERVAL '10' DAY;