The following query will duplicate a column if it is involved in more than one relationship.
Select C.TABLE_SCHEMA, C.TABLE_NAME, C.COLUMN_NAME, C.DATA_TYPE
, PKCol.TABLE_SCHEMA, PKCol.TABLE_NAME, PKCol.COLUMN_NAME
From INFORMATION_SCHEMA.COLUMNS As C
Left Join (INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE As FKCol
Join INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS As FK
On FK.CONSTRAINT_NAME = FKCol.CONSTRAINT_NAME
Join INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE As PKCol
On PKCol.CONSTRAINT_NAME = FK.UNIQUE_CONSTRAINT_NAME)
On FKCol.TABLE_SCHEMA = C.TABLE_SCHEMA
And FKCol.TABLE_NAME = C.TABLE_NAME
ANd FKCol.COLUMN_NAME = C.COLUMN_NAME
Thomas
2010-05-20 15:52:55