Oracle change the default date format before insert data

Oracle accepts date in the default format of YYYY-MON-DD. Here month is accepted as three characters of month name. Ex: January-JAN, February: FEB, etc

Now before executing a bulk records to a table with a required date format such as YYYY-MM-DD, we can alter the session to accept date in that format from the following query.

SQL> alter session set NLS_DATE_FORMAT='YYYY-MM-DD';

Now we can insert records with date represented in YYYY-MM-DD format.

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