I have a DB structured like this: CATEGORIES > SUBCATEGORIES > PRODUCTS In just want show the categories which have an number of products related to it, but I don\'t know if my method is the
i learn Symfony and Doctrine with Jobeet. I would like add relation in JobeetJob. this is original: http://www.symfony-project.org/jobeet/1_4/开发者_StackOverflowDoctrine/en/03
I have a database of U.S. Congressional information whereby I have FirstName, MiddleName, LastName, District, State, Party, etc. of each Congressman in the 112th Session of the U.S. House of Represent
-Goal- I would like to fetch users who do not have an entry within the \'bar\' table. These users will also belong to a certain \'usergroup\' and have restrictions within the \'user\' table itself.
I have a question about aspnet_applications table I have created asp.net membership using .net framework 4.0 it created some tables but I don\'t understand why Microsoft generate aspnet_applications t
I inherited a SQL Server database where many tables have a primary key of type numeric(18,0) . What reasons (historical perhaps?) would someone choose this datatype for 开发者_JS百科a primary key?I w
I am storing relational items in fields as comma delimited IDs like so: ,4,12,8,16,198, The reason for the leading and trailing commas are for searching with LIKE \'%,id,%\'
Not sure if this is possible (or worthwhile to do) in pure SQL, but I\'ll ask anyway. Let\'s say I have a bunch of numbered records in my database (extra spaces for clarity):
I an reading through some examples of normalization, however I have come across one that I do not understand.
I\'m trying to write query to a MYSQL database that queries for products that have a 开发者_运维知识库relationship with all selected categories
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