database-relations
Database structure - To join or not to join
We\'re drawing up the database structure with the help of mySQL Workbench for a new app and the number of joins required to make a listing of the data is increasing drastically as the many-to-many开发[详细]
2022-12-23 22:47 分类：问答Rails: Using build with a has_one association in rails
In this example, I create a user with no profile, then later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is usin[详细]
2022-12-23 03:57 分类：问答How to get the tag relations results just by using SQL(s)?
Table tags: article_idtag 1Language 1Java 1c++ 2Language 2c++ 3c++ and how can I write SQL(s) query(s) to make the data like below:[详细]
2022-12-14 22:57 分类：问答Castle ActiveRecord OneToOne and JoinedBase/Key all together, No SQL Relations Created
I\'d like to model the following relationship. [JoinedBase] MasterForm{ Guid MasterFormId {get;set;} /* some base properties like modifiedBy etc... */[详细]
2022-12-13 03:00 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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