I want to fetch transactions happened between 10 mins . I have table with column transfer date, transfer Id but i only want to fetch those transfer id that had been generated within 10 mins
This query will give you those transfer_id which have occurred in the past 10 minutes, given that this can be determined by transfer_date.
select transfer_id
from transactions
where transfer_date > sysdate - interval '10' minute
You may try this :
select transfer_id, transfer_date from my_table where transfer_id in
(
select transfer_id from my_table
minus
select transfer_id from my_table as of timestamp systimestamp - interval '10' minute
)
i have to emphasize that your db's flashback mode should be on (if not, your dba should issue the following command):
alter database flashback on
Related
We need to store a value "13:45" in the column "Start_Time" of an Oracle table.
Value can be read as 45 minutes past 13:00 hours
Which datatype to be used while creating the table? Also, once queried, we would like to see only the value "13:45".
I would make it easier:
create table t_time_only (
time_col varchar2(5),
time_as_interval INTERVAL DAY TO SECOND invisible
generated always as (to_dsinterval('0 '||time_col||':0')),
constraint check_time
check ( VALIDATE_CONVERSION(time_col as date,'hh24:mi')=1 )
);
Check constraint allows you to validate input strings:
SQL> insert into t_time_only values('25:00');
insert into t_time_only values('25:00')
*
ERROR at line 1:
ORA-02290: check constraint (CHECK_TIME) violated
And invisible virtual generated column allows you to make simple arithmetic operations:
SQL> insert into t_time_only values('15:30');
1 row created.
SQL> select trunc(sysdate) + time_as_interval as res from t_time_only;
RES
-------------------
2020-09-21 15:30:00
Your best option is to store the data in a DATE type column. If you are going to be any comparisons against the times (querying, sorting, etc.), you will want to make sure that all of the times are using the same day. It doesn't matter which day as long as they are all the same.
CREATE TABLE test_time
(
time_col DATE
);
INSERT INTO test_time
VALUES (TO_DATE ('13:45', 'HH24:MI'));
INSERT INTO test_time
VALUES (TO_DATE ('8:45', 'HH24:MI'));
Test Query
SELECT time_col,
TO_CHAR (time_col, 'HH24:MI') AS just_time,
24 * (time_col - LAG (time_col) OVER (ORDER BY time_col)) AS difference_in_hours
FROM test_time
ORDER BY time_col;
Test Results
TIME_COL JUST_TIME DIFFERENCE_IN_HOURS
____________ ____________ ______________________
01-SEP-20 08:45
01-SEP-20 13:45 5
Table Definition using INTERVAL
create table tab
(tm INTERVAL DAY(1) to SECOND(0));
Input value as literal
insert into tab (tm) values (INTERVAL '13:25' HOUR TO MINUTE );
Input value dynamically
insert into tab (tm) values ( (NUMTODSINTERVAL(13, 'hour') + NUMTODSINTERVAL(26, 'minute')) );
Output
you may either EXTRACT the hour and minute
EXTRACT(HOUR FROM tm) int_hour,
EXTRACT(MINUTE FROM tm) int_minute
or use formatted output with a trick by adding some fixed DATE
to_char(DATE'2000-01-01'+tm,'hh24:mi') int_format
which gives
13:25
13:26
Please see this answer for other formating options HH24:MI
The used INTERVAL definition may store seconds as well - if this is not acceptable, add CHECK CONSTRAINT e.g. as follows (adjust as requiered)
tm INTERVAL DAY(1) to SECOND(0)
constraint "wrong interval" check (tm <= INTERVAL '23:59' HOUR TO MINUTE and EXTRACT(SECOND FROM tm) = 0 )
This rejects the following as invalid input
insert into tab (tm) values (INTERVAL '13:25:30' HOUR TO SECOND );
-- ORA-02290: check constraint (X.wrong interval) violated
I have a table called EMPLOYEE, and in that table there is column called CREATE_DATE which is of type DATE.
And I'm using Hibernate to retrieve the records of employee inserted in the last 5 minutes.
Is it possible to retrieve the records based on CREATE_DATE column !
If possible how do we write a hibernate criteria for the same ?
Subtract five minutes from the current date/time:
SELECT *
FROM EMPLOYEE
WHERE CREATE_DATE > SYSDATE - INTERVAL '5' MINUTE
Best of luck.
select * from EMPLOYEE where CREATE_DATE > sysdate - 1/24/60*5
I am pretty new to Oracle.
I am just stuck when i try to achieve the following logic. I am creating a sql script in oracle that will help me to generate a report. This script will run twice a day so i should't pick the same file when it runs next time.
1) run the query and save the result setand store the Order Id in the temp table when the job runs #11 Am
2) Run the query second time # 3 pm check the temp table and return the result set that's not in temp table.
Following query will generate the result set but not sure how to create a temp table and valid against when it run.
select
rownum as LineNum,
'New' as ActionCode,
ORDER_ID,
AmountType,
trun(sysdate),
trun(systime)
from crd.V_IVZ_T19 t19
where
(t19.acct_cd in
(select fc.child_acct_cd
from cs_config fc
where fc.parent_acct ike 'G_TRI_RPT'))
and t19.date>= trunc(sysdate)
and t19.date<= trunc(sysdate);
Any help much appreciated. I am not sure how to get only the timestamp also.
TEMP table is not the idea here, cause temp table data will not store the data for a long time (just for a session), you just need to create a normal table. Hope it will help you:
--- table for storing ORDER_ID for further checking, make a correct DataType, you also can add date period in the table to control expired order_ids';
CREATE TABLE order_id_store (
order_id NUMBER,
end_date DATE
);
--- filling the table for further checking
INSERT INTO order_id_store
SELECT ORDER_ID, trunc(sysdate)
FROM crd.V_IVZ_T19 t19
WHERE t19.order_id NOT IN (SELECT DISTINCT order_id FROM order_id_store)
AND t19.date>= trunc(sysdate)
AND t19.date<= trunc(sysdate);
--- delete no need data by date period, for example for last 2 days:
DELETE FROM order_id_store WHERE end_date <= trunc(SYSDATE - 2);
COMMIT;
---- for select report without already existed data
SELECT
rownum as LineNum,
'New' as ActionCode,
ORDER_ID,
AmountType,
trun(sysdate),
trun(systime)
FROM crd.V_IVZ_T19 t19
WHERE
(t19.acct_cd in
(select fc.child_acct_cd
from cs_config fc
where fc.parent_acct ike 'G_TRI_RPT'))
AND t19.order_id NOT IN (SELECT DISTINCT order_id FROM order_id_store)
AND t19.date>= trunc(sysdate)
AND t19.date<= trunc(sysdate);
I'm not sure about your "t19.date>=" and "t19.date<=", cause the close duration taking there, make that correct if it's not.
I was trying to select some data from my table using the following query:
select * from table1 where column1 = to_date('14-05-14','yy-mm-dd');
Where the column data type is DATE. I observed that, the above query won't return anything unless we modified it as,
select * from table1 where trunc(column1) = to_date('14-05-14','yy-mm-dd');
even though there are records available.
I checked the documentation for TRUNC.Can anyone please explain why this happens?
UPDATE
As per the valuable comments I think some time values may also associated with the DATE. But I cannot view/edit that time. How can I ensure there are time values associated.
Both TO_DATE and TRUNC are different. See the below example.
SQL> ALTER SESSION SET nls_date_format = 'dd/mm/yyyy hh24:mi:ss';
Session altered.
SQL> SELECT TO_DATE(SYSDATE) FROM DUAL;
TO_DATE(SYSDATE)
-------------------
28/05/2014 16:03:25
SQL> SELECT TRUNC(SYSDATE) FROM DUAL;
TRUNC(SYSDATE)
-------------------
28/05/2014 00:00:00
In Your first query to_date('14-05-14','yy-mm-dd') is comparing with the date field column1 in your table which has time values also. Whereas in Your 2nd query You are truncating the time part from table data and from Your query, that's why it's matching.
The DATE datatype stores the year (including the century), the month, the day, the hours, the minutes, and the seconds (after midnight).
TRUNC function will truncate the date to the day value, so that any hours, minutes, or seconds will be truncated off.
For more info please look at these below links
http://docs.oracle.com/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT413
http://www.techonthenet.com/oracle/functions/trunc_date.php
I have a field named end_time (of type timestamp(6)) in my Oracle 11g DB. My requirement is to fetch records which are greater than current time stamp.As I work with remote DB, I need the current time of my oracle database server.
After some research I came to know that SYSTIMESTAMP returns current time stamp of machine where DB resides.
So I just put a condition like end_time > SYSTIMESTAMP, but it does not filter records. My end-time is of type timestamp(6).
Do I have to use any conversion function? How can I do it from Hibernate? Any idea?
Can you further explain on "does not filter records", are too many rows in your result or to few?
Your condition looks absolutely ok:
CREATE TABLE mytable (ts TIMESTAMP(6));
INSERT INTO mytable (ts) VALUES (TIMESTAMP '2012-12-06 17:00:00');
INSERT INTO mytable (ts) VALUES (TIMESTAMP '2012-12-06 18:00:00');
SELECT SYSTIMESTAMP FROM DUAL;
06.12.2012 17:10:38.347629000 +01:00
SELECT * FROM mytable WHERE ts > SYSTIMESTAMP;
06.12.2012 18:00:00.000000000
SELECT * FROM mytable WHERE ts < SYSTIMESTAMP;
06.12.2012 17:00:00.000000000