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POmySQL store file details in one or many database table design and best way of creating parent and child categories
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----- PHP and mySQL ----- I have two quick questions need some advice. On my site I will allow users to upload following files - PDF/Videos/Photos. All files uploaded by the user are shown on a profile page. All uploaded files can be searched by name or tags and file type. What would be the best mysql database design? <ol> <li>Store all files in one table, easier to display on user’s profile page and searching by type and etc.</li> <li>One table per type e.g. pdf, videos and photos <- this might be better for performance but for searching I don’t know?</li> </ol> Second question is, I allow users to create their own menus/categories with parent and children categories for example: <ul> <li>->parent category</li> <li><ul> <li><ul> <li><ul> <li>> child category</li> </ul></li> </ul></li> </ul></li> <li><ul> <li><ul> <li><ul> <li>> child category</li> </ul></li> </ul></li> </ul></li> <li>->parent category</li> <li><ul> <li><ul> <li><ul> <li>> child category</li> </ul></li> </ul></li> </ul></li> <li><ul> <li><ul> <li><ul> <li>> child category</li> </ul></li> </ul></li> </ul></li> </ul> At moment I have two database tables, one stores all the parent categories for each user and second store child category with foreign key (id) to parent category. To get all the categories I first get all the parent categories and using a foreach loop. I call a function within the loop to get the children categories by parent id. I want to know is this the best approach of doing this or can this be done in mySQL query without looping? thanks guys !!!
Tags
<mysql><performance><database-design><left-join>
Title
mySQL store file details in one or many database table design and best way of creating parent and child categories
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