246 APPENDIX A n MORE ADVANCED FEATURES APPENDIX (Managed web hosting)
246 APPENDIX A n MORE ADVANCED FEATURES APPENDIX A n MORE ADVANCED FEATURES Figure A-1. A problematic but legal schema Here, the product table represents a product (for example, a flashlight). The color table represents the colors in which it is sold. The link table named product_color then allows us to identify a product by stock keeping unit (SKU), and identify the colors in which it is available. If we do not mind the Product object retaining a set of colors (representing the colors in which it can be sold), then we have no problem; but if we want to distinguish between a red flashlight and a green one, things become more difficult (see Listing A-13). Listing A-13. A Fairly Direct Representation of the Product
We recommend high quality webhost to host and run your jsp application: christian web host services.