I am new to sql server. Currently i am using sql server 2000. i have created two tables course and student , with course_id and stu_id , as primary key of the respective tables. Now i am trying to relate them through the diagram , in order to create a relationship between the two. When i try to draw a relationship between stu_id and course_id , i get the following errorerror: Unable to create relationship 'FK_stud_course'. ODBC error: [Microsoft][ODBC SQL Server Driver][SQL Server]ALTER TABLE statement conflicted with COLUMN FOREIGN KEY constraint 'FK_stud_course'. The conflict occurred in database 'student', table 'course', column 'course_id'.