Here is a small script to get information about the Primary Key column(s) and Foreign Key column(s) in SQL Server.

Script:

;WITH GETINFO AS
(
	SELECT	DBNAME = CONVERT(SYSNAME,DB_NAME()), 
				OWNERNAME = CONVERT(SYSNAME,SCHEMA_NAME(OBJ1.SCHEMA_ID)), 
				[PRIMARYTABLE NAME] = CONVERT(SYSNAME,OBJ1.NAME), 
				PKCOLUMN_NAME = CONVERT(SYSNAME,COL1.NAME), 
				[FOREIGNTABLE NAME]= CONVERT(SYSNAME,OBJ2.NAME), 
				FKCOLUMN_NAME = CONVERT(SYSNAME,COL2.NAME), 
				ORDINALPOSITION             = ISNULL(CONVERT(SMALLINT,FKCOL.CONSTRAINT_COLUMN_ID),0),
				[FOREIGNKEY NAME] = CONVERT(SYSNAME,OBJECT_NAME(FK.OBJECT_ID)), 
				[PRIMARYKEY NAME] = CONVERT(SYSNAME,I.NAME)
	FROM   SYS.ALL_OBJECTS OBJ1, SYS.ALL_OBJECTS OBJ2, SYS.ALL_COLUMNS COL1, SYS.ALL_COLUMNS COL2, SYS.FOREIGN_KEYS FK 
	INNER JOIN SYS.FOREIGN_KEY_COLUMNS FKCOL ON (FKCOL.CONSTRAINT_OBJECT_ID = FK.OBJECT_ID) 
	INNER JOIN SYS.INDEXES I  ON (FK.REFERENCED_OBJECT_ID = I.OBJECT_ID AND FK.KEY_INDEX_ID = I.INDEX_ID) 
	WHERE  OBJ1.OBJECT_ID = FK.REFERENCED_OBJECT_ID AND OBJ2.OBJECT_ID = FK.PARENT_OBJECT_ID 
				AND COL1.OBJECT_ID = FK.REFERENCED_OBJECT_ID AND COL2.OBJECT_ID = FK.PARENT_OBJECT_ID 
				AND COL1.COLUMN_ID = FKCOL.REFERENCED_COLUMN_ID AND COL2.COLUMN_ID = FKCOL.PARENT_COLUMN_ID
),SHOWINFO AS
(
	SELECT DISTINCT DBNAME,OWNERNAME,[PRIMARYTABLE NAME],[FOREIGNTABLE NAME],
           PRIMARYKEYCOLUMNNAMES=  REPLACE( 
			   (SELECT A.PKCOLUMN_NAME AS [data()]
				FROM GETINFO A
				WHERE A.[PRIMARYTABLE NAME] = B.[PRIMARYTABLE NAME] AND A.[FOREIGNKEY NAME] = B.[FOREIGNKEY NAME] AND A.[PRIMARYKEY NAME] = B.[PRIMARYKEY NAME]
				ORDER BY A.ORDINALPOSITION FOR XML PATH ('') ), ' ', ',') ,
           FOREIGNKEYCOLUMNNAMES=  REPLACE( 
			   (SELECT A.FKCOLUMN_NAME AS [data()]
                FROM GETINFO A
                WHERE A.[PRIMARYTABLE NAME] = B.[PRIMARYTABLE NAME] AND A.[FOREIGNKEY NAME] = B.[FOREIGNKEY NAME] AND A.[PRIMARYKEY NAME] = B.[PRIMARYKEY NAME]
                ORDER BY A.ORDINALPOSITION FOR XML PATH ('') ), ' ', ',') 
	FROM GETINFO B 
)SELECT * FROM SHOWINFO