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How do we get primary key information in oracle table?

Posted By :Dhivakaran     Posted Date :November 30, 2010    Points :10   Category :Sql Server 
we can get primary key information with the following SQL statement

SELECT b.table_name, b.column_name, b.position, a.status, cons.owner
FROM all_constraints a, all_cons_columns b
WHERE cons.constraint_type = 'P'
AND a.constraint_name = b.constraint_name
AND a.owner = b.owner
ORDER BY b.table_name, b.position;

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