data-modeling

相关标签：javascript jquery android 多少钱 iPhone

How to model the associations for a task application?

I\'m working on a goal completion application, where there can be开发者_JAVA百科 Goals, Milestones, and Tasks. Milestones belong to goals, goals can have many milestones, and tasks can belong to eithe[详细]

2023-03-10 04:32 分类：问答
DB design : Config Data, Actual Data, Log Data

I want to know if there is any typical approach to differenciate this kind of data I have to 开发者_开发问答listing devices (for example) in a db, ane everyone will have[详细]

2023-03-09 20:04 分类：问答
Are dimension tables and domain tables the same thing?

I think I know what a domain table is (it basically contains all the possible values that some other column can contain), and I\'ve looked up dimension table in Wikipedia. Unfortunately, I\'m having a[详细]

2023-03-09 07:40 分类：问答
Is there a good collection of entity relation or class models in different industries on the web?

Please let me开发者_运维问答 know if you have any ideas.[详细]

2023-03-09 04:51 分类：问答
Django database design help

I\'m designing a project management site, The user needs to enter the hardware required for the project in addition to other details. For example,[详细]

2023-03-09 04:14 分类：问答
Is there a Java library to merge data model?

We want to merge 2 set of data using the same model: we have 2 databases that have the same DDL, but containing different data.[详细]

2023-03-08 11:17 分类：问答
Help needed on planning an SQL database

I\'m a student learning SQL and PHP, I have been set a task to create a student feedback form using PHP and mySQLi, and im really stuck at getting my head around how to design the database for the pro[详细]

2023-03-08 02:12 分类：问答
Need advice on model design using Entity Framework 4.1 Code First and base types

I need some advice on part of my model I am designing. As you can see in my Rfi entity, I have a collection of BaseImpact types. There will be several types of impacts that can be added to that collec[详细]

2023-03-08 00:25 分类：问答
Redis multi column range query

I have users as Redis Hashes and want to find similar users (given a particular user) based on salary and age.[详细]

2023-03-07 06:56 分类：问答
When creating a mysql table for local places whats the best primary key?

What would be the best primary key for a 开发者_如何学Cvenue in my area? From performance point of view - a 4 byte integer, so a surrogate key.[详细]

2023-03-07 03:29 分类：问答