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CREATE TABLE t (LeadKey int) ; INSERT INTO t (LeadKey) VALUES (1), (2), (35566), (5522), (83746623) ;
5 rows affected
select LeadKey ,left(LeadKey, 4) Split1 ,right(LeadKey, case when len(LeadKey)-4 < 0 then 0 else len(LeadKey)-4 end) Split2 from t
LeadKey
Split1
Split2
1
1
2
2
35566
3556
6
5522
5522
83746623
8374
6623