I am using SAP BODS and I am trying to fetch data from an ORACLE server using SQL query transormation. Now The table has a column named latest_changed_date which is a datetime column. I only want yesterday and current day data from that table. Now since the column is datetime, I need to convert it to date, but when I am using to_date function I get the following error.
SELECT *
FROM ABC.TEST
WHERE TO_DATE(LATEST_CHANGED_DATE) = TO_DATE(SYSDATE-1)
The database error message is
ORA-01843: not a valid month
I tried giving date format in TO_DATE condition as below:
SELECT *
FROM ABC.TEST
WHERE TO_DATE(LATEST_CHANGED_DATE,'YYYY-MM-DD') >= TO_DATE(SYSDATE-1,'YYYY-MM-DD')
Here I got the error:
date format picture ends before converting entire input string
I used trunc function also and again got either:
not a valid month
or
inconsistent datatypes: expected NUMBER got DATE
Below is a sample data for the column. I just need data for current and day before data from the column.
Update: I think the main issue is that I am not able to determine the proper datatype for the column in the source table and currently I don't have an option to determine that.
Rather than trying to implicitly cast your dates to strings and convert them back using TO_DATE( string_value, format_model )
you can use TRUNC()
to truncate SYSDATE
to the start of the day:
SELECT *
FROM ABC.TEST
WHERE LATEST_CHANGED_DATE >= TRUNC( SYSDATE-1 )
this will work:
SELECT *
FROM ABC.TEST
where sysdate-LATEST_CHANGED_DATE<=sysdate-(sysdate-2);
for example take this:
ALTER SESSION SET NLS_DATE_FORMAT = ' DD-MON-YYYY HH24:MI:SS';
SELECT * FROM d061_dates ;
03-DEC-2018 17:44:38
25-AUG-2018 17:44:42
30-AUG-2018 17:44:46
01-DEC-2018 17:44:49
02-DEC-2018 17:46:31
SELECT * FROM d061_dates
where sysdate-a<=sysdate-(sysdate-2);
03-DEC-2018 17:44:38
02-DEC-2018 17:46:31
you have to take sysdate minus on both sides to get comparision by a number which is less than equal to 2 to get day and day before yesterday and its giving the correct output.
thank you!!!!!!!!!!!!!
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