Oracle List Restrições
SELECT *
FROM ALL_CONSTRAINTS c,
ALL_CONS_COLUMNS cols
WHERE c.CONSTRAINT_TYPE = 'P'
AND c.CONSTRAINT_NAME = COLS.CONSTRAINT_NAME
AND c.OWNER = COLS.OWNER
AND c.OWNER = 'schema_name'
AND cols.TABLE_NAME = 'table_name'
ORDER BY cols.TABLE_NAME, COLS.POSITION;
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