Параметры запроса

В тексте запроса могут присутствовать параметры. Рассмотрим следующий запрос:

SELECT DISTINCT
	cl."ID" AS lab_id, 
	e."ID" AS fio_id,
	e."SURNAME" AS surname,
	e."NAME" AS name,
	e."PATRONYMIC" AS patronymic,
	CONCAT(e."SURNAME", ' ', e."NAME", ' ', e."PATRONYMIC") AS fio
FROM "COMPANY_LEVEL" cl 
INNER JOIN "EMPLOYEE_CLB" e_clb 
	ON cl."ID" = e_clb."COMPANY_LEVEL_ID" 
INNER JOIN "EMPLOYEE" e 
	ON e."ID" = e_clb."ENTITY_ID"  
WHERE cl."ID" = @lab_id 
ORDER BY fio;