This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Table A has an FK to Table B. Table B has an FK to Table A. If I try to delete a record from Table A the delete will fail, because the record is referenced in Table B. If I try to delete a record from Table B the delete will fail because the record is referenced in Table A.