diff --git a/db_compare.py b/db_compare.py
index 783b8124..02e01f63 100755
--- a/db_compare.py
+++ b/db_compare.py
@@ -350,20 +350,21 @@ def check_problem_common():
 
 def check_uloha():
 	old_query = "SELECT * FROM seminar_problemy WHERE typ = 'uloha' ORDER BY id"
-	new_query = """SELECT cislo_zadani_id, cislo_reseni_id, problem_ptr_id, max_body, uzt.na_web AS text_zadani, uvt.na_web AS text_reseni
+	new_query = """SELECT cislo_zadani_id, cislo_reseni_id, problem_ptr_id, max_body, COALESCE(uzt.na_web, '') AS text_zadani, COALESCE(uvt.na_web, '') AS text_reseni, cislo_deadline_id
 	FROM seminar_ulohy
 	-- Problém:
 	JOIN seminar_problemy AS problem ON problem_ptr_id = problem.id
 	-- Text zadání:
+	-- ZadaniNode a VzorakNode maji existovat vzdy, ale obsah nemusi (pokud ho nemaji)
 	INNER JOIN seminar_nodes_uloha_zadani AS uzn ON problem.id = uzn.uloha_id
 	INNER JOIN seminar_nodes_treenode AS uztn ON uztn.id = uzn.treenode_ptr_id
-	INNER JOIN seminar_nodes_obsah AS uzo ON uzo.treenode_ptr_id = uztn.first_child_id
-	INNER JOIN seminar_texty AS uzt ON uzo.text_id = uzt.id
+	LEFT OUTER JOIN seminar_nodes_obsah AS uzo ON uzo.treenode_ptr_id = uztn.first_child_id
+	LEFT OUTER JOIN seminar_texty AS uzt ON uzo.text_id = uzt.id
 	-- Text vzoráku:
-	INNER JOIN seminar_nodes_uloha_zadani AS uvn ON problem.id = uvn.uloha_id
+	INNER JOIN seminar_nodes_uloha_vzorak AS uvn ON problem.id = uvn.uloha_id
 	INNER JOIN seminar_nodes_treenode AS uvtn ON uvtn.id = uvn.treenode_ptr_id
-	INNER JOIN seminar_nodes_obsah AS uvo ON uvo.treenode_ptr_id = uvtn.first_child_id
-	INNER JOIN seminar_texty AS uvt ON uvo.text_id = uvt.id
+	LEFT OUTER JOIN seminar_nodes_obsah AS uvo ON uvo.treenode_ptr_id = uvtn.first_child_id
+	LEFT OUTER JOIN seminar_texty AS uvt ON uvo.text_id = uvt.id
 
 	ORDER BY problem_ptr_id"""
 
@@ -381,7 +382,7 @@ def check_uloha():
 	for o,n in res:
 		check_same(o,n, old_fields, new_fields)
 		# Datum deadline vypadá prázdně, tak to budeme předpokládat.
-		if n['datum_deadline'] is not None:
+		if n['cislo_deadline_id'] is not None:
 			raise ValueError("Úloha má deadline.")
 
 def check_tema():