diff --git a/db/install/changes/00-workerGetHierarch.sql b/db/install/changes/00-workerGetHierarch.sql
new file mode 100644
index 000000000..8070a0ee2
--- /dev/null
+++ b/db/install/changes/00-workerGetHierarch.sql
@@ -0,0 +1,46 @@
+DROP procedure IF EXISTS `vn`.`worker_getHierarch`;
+
+DELIMITER $$
+CREATE DEFINER=`root`@`%` PROCEDURE `vn`.`worker_getHierarch`(vBoss INT)
+BEGIN
+    DECLARE EXIT HANDLER FOR 1062 BEGIN
+		CALL util.throw('INFINITE_LOOP');
+    END;
+
+	DROP TEMPORARY TABLE IF EXISTS workerHierarch;
+	CREATE TEMPORARY TABLE workerHierarch
+		(PRIMARY KEY (workerFk))
+		ENGINE = MEMORY
+		SELECT vBoss AS workerFk;
+            
+	DROP TEMPORARY TABLE IF EXISTS tmp.workerHierarchList;
+	CREATE TEMPORARY TABLE tmp.workerHierarchList
+		(PRIMARY KEY (workerFk))
+		ENGINE = MEMORY
+		SELECT vBoss AS workerFk, 0 AS isChecked;
+
+
+    WHILE (SELECT COUNT(*) FROM tmp.workerHierarchList WHERE NOT isChecked) > 0 DO
+
+	INSERT INTO tmp.workerHierarchList
+		SELECT w.id, 0 
+			FROM worker w
+				JOIN workerHierarch wh ON wh.workerFk = w.bossFk;
+
+	UPDATE tmp.workerHierarchList whl
+			JOIN workerHierarch wh ON  wh.workerFk = whl.workerFk
+		SET whl.isChecked = 1;
+
+	TRUNCATE workerHierarch;
+
+	INSERT INTO workerHierarch
+		SELECT workerFk 
+			FROM tmp.workerHierarchList
+			WHERE NOT isChecked;
+
+    END WHILE;
+    
+    DROP TEMPORARY TABLE IF EXISTS workerHierarch;
+END$$
+
+DELIMITER ;
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