The following lines contain the word 'select', 'insert', 'update' or 'delete':
RETURN ('/* Do not select from category tables.*/');
SELECT
MAX(TRANSACTION_SOURCE_TYPE_NAME)
INTO NAME
FROM
MTL_TXN_SOURCE_TYPES
WHERE TRANSACTION_SOURCE_TYPE_ID = SOURCE_TYPE_ID;
SELECT
CATEGORY_SET_NAME
INTO NAME
FROM
MTL_CATEGORY_SETS
WHERE CATEGORY_SET_ID = SET_ID;