What the difference between these functions

hi all
please I'd Like to know what the differnces between these function
1-sql_code
2-dbms_sql_code
3-sqlcode
thanks in advance

Did you search in the documentation ?
http://www.oracle.com/webapps/online-help/forms/10g/state?oldNavSetId=_&oldNavId=2&navId=2&vtTopicFile=&navSetId=_&value=1&sPhrase=&action=search&locale=&searchType=simple&phrase=sqlcode&event=update&source=
http://www.oracle.com/webapps/online-help/forms/10g/state?navSetId=_&navId=3&vtTopicFile=f1_help/builtd_f/dbmserco.html&vtTopicId=
Francois

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