Need a query to find Table Dependancy

Hi Experts,
I am in a need to find out which are all tables refer to particular table 'ABC' and / or it's column 'column_1', since I am new to environment and have about 500 + tables.
Please tell me what are the various ways, I can achieve above requirement?
Regards,
MS

user_cons_columns
Information about accessible columns in constraint definitions
OWNER
Owner of the constraint definition
CONSTRAINT_NAME
Name associated with the constraint definition
TABLE_NAME
Name associated with table with constraint definition
COLUMN_NAME
Name associated with column or attribute of object column specified in the constraint definition
POSITION
Original position of column or attribute in definition
Also try this, DBMS_METADATA
set long 9999
select dbms_metadata.get_ddl('TABLE','ABC') FROM DUAL;
Edited by: rajeysh on Jun 21, 2011 2:44 AM
Edited by: rajeysh on Jun 21, 2011 2:44 AM

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