UPDATE exercise SET diff=3 WHERE diff=4;

INSERT INTO exercise (id,name,type,tweight,tuse,tiso,diff,descr,media)
SELECT 371,"Stiff Leg Straight Back Deadlifts",2,2,0,1,3,"",1
UNION ALL SELECT 372,"Stiff Leg Straight Back Deadlifts (Smith Machine)",2,4,0,1,2,"",1
UNION ALL SELECT 373,"Straight Leg Straight Back Deadlifts",2,2,1,1,3,"",1
UNION ALL SELECT 374,"Straight Leg Straight Back Deadlifts (Smith Machine)",2,4,1,1,3,"",1
UNION ALL SELECT 375,"Straight Leg Straight Back Deadlifts (Dumbbells)",2,2,1,1,3,"",1;

INSERT INTO exms (ex,ms,lvl,opt) 
SELECT 371,13,0,0
UNION ALL SELECT 371,19,0,0
UNION ALL SELECT 371,20,1,0
UNION ALL SELECT 371,22,0,0
UNION ALL SELECT 371,24,0,1
UNION ALL SELECT 373,13,0,0
UNION ALL SELECT 373,19,0,1
UNION ALL SELECT 373,22,0,0
UNION ALL SELECT 373,24,0,1
UNION ALL SELECT 375,13,0,0
UNION ALL SELECT 375,19,0,1
UNION ALL SELECT 375,22,0,0
UNION ALL SELECT 375,24,0,1
UNION ALL SELECT 372,13,0,0
UNION ALL SELECT 372,19,0,0
UNION ALL SELECT 372,20,1,0
UNION ALL SELECT 372,22,0,0
UNION ALL SELECT 372,24,0,1
UNION ALL SELECT 374,13,0,0
UNION ALL SELECT 374,19,0,1
UNION ALL SELECT 374,22,0,0
UNION ALL SELECT 374,24,0,1;

UPDATE exercise SET media = 1 WHERE id IN (
22,
55,
187,
264,
289,
290,
292,
305,
306,
307,
309,
310,
311,
341);
