Pasted

vendor/yiisoft/yii2/db/oci/Schema.php
 findConstraints
  SELECT
    D.CONSTRAINT_NAME,
    D.CONSTRAINT_TYPE,
    C.COLUMN_NAME,
    C.POSITION,
    C.TABLE_NAME
FROM ALL_CONS_COLUMNS C
    INNER JOIN ALL_CONSTRAINTS D ON D.OWNER = C.OWNER AND D.CONSTRAINT_NAME = C.CONSTRAINT_NAME
WHERE
    C.OWNER = :schemaName
    AND C.TABLE_NAME = :tableName
ORDER BY D.CONSTRAINT_NAME