Correct date format in sql developer

Hi,
I have date_created datatype date showing in sql developer as 06-09-29 can I display it in yyyy-mm-dd format.

Thanks
sam2929Asked:
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sdstuberCommented:
select to_char(date_created,'yyyy-mm-dd') from your_table;


you can also set your session's format option but that will format all dates in all queries this way which may not be what you want (if, for example, some dates have hours,minutes,seconds populated with non-zero values)

alter session set nls_date_format='yyyy-mm-dd';
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sam2929Author Commented:
I did alter session now date coming like 006-10-09
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Mark GeerlingsDatabase AdministratorCommented:
You apparently missed a "y".  You need four of them as sdstuber suggested.  You apparently executed this (with just three "y" characters):

alter session set nls_date_format='yyy-mm-dd';

Correct version is:
alter session set nls_date_format='yyyy-mm-dd';
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