Assuming the following mappings are provided: <class name=\"A\" table=\"a_table\"> <id name=\"id\"/>
I\'m trying to map a @ManyToMany association using hibernate. But so far I only managed to have cascade on one of the foreign keys.
I used an online SQL builder to help design some MySQL tables I\'m working on.Foreign keys always confuse me.
I need to change the values of a PK/FK (add 10000) on 2 tables. How do I tell the two tables involved that they should not care about referential integrity during the update, but to care a开发者_运维技
I\'m sure this is a very simple question, but I\'m just a newbie so... I have a model, Game, which has_many :piles. Pile, in turn, has_many :cards. I\'m able to populate the Piles and Cards at creati
I had a problem with the method Doctrine_Table::find(), since it\'s thorowing an exception of SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens
I have following comments table in my app: comments ------开发者_JAVA百科-- idINT foreign_idINT modelTEXT
Some introduction. I have a \"planet-like\" feed aggregator with an extra layer on top. That extra layer allows for comments and elaboration on the aggregated posts. Here\'s some code for reference.
I am currently thinking about the database design of a \'friends\' table (many-to-many, stores the friendships between users).
hope you all had a happy new year. So, my question is, what\'s the best way to make a log of actions. Let me explain it with a example, suppose we have these entities:
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