From -6000 to -6999

Use

-6000	Duplicate table name
-6001	Duplicate column name
-6002	Duplicate privilege
-6003	Duplicate result table name
-6006	Duplicate name
-6008	Duplicate index name
-6011	Duplicate constraint
-6012	Duplicate default
-6013	Duplicate trigger definition
-6014	Duplicate value
-6016	Duplicate format code
-6018	Duplicate datasource name