oracle - How can I format a number as xxx-xx-xxxx? -

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I ask for social security number data from a stored procedure and I format it as a social security number in my security Want process

How can I format xxx-xx-xxxx such as xxxxxxxxx in Oracle?

SSN formatting with TO_CHAR 

  SELECT TO_CHAR (012345678, '000g00g0000', 'nls_numeric_characters = .-') from SSN double; SSN ----------- 012-34-5678

Update: Thank you for Gary that the '0' format character To preserve leading zero, '9' should be used instead.


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