datamodel

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Data mapping across websites?

I am starting work on a project which has multiple websites for a client. For \'analytic\' purposes need to measure metrics across websites over a period of time. This means i need to centralize the d[详细]

2023-02-04 12:49 分类：问答
Struggling with a data modeling problem

I am struggling with a data model (I use MySQL for the database).I am uneasy about what I have come up with.If someone could suggest a better approach, or point me to some reference matter I would app[详细]

2023-02-04 05:11 分类：问答
Why can't I call del [:] on a dict?

What\'s going on here? >>> a = {1: \"a\", 2: \"b\"} >>> del a[1] >>> a {2: \'b\'}[详细]

2023-02-04 03:19 分类：问答
How to properly delete and re-add Entity Data Model

newbie to Entity Framework here.Using VS 2010 and SQL Server 2008 express DB. I was having trouble refreshing an Entity Data Model after adding new tables.So, I followed a suggestion I found here to[详细]

2023-02-02 16:23 分类：问答
Cocoa -- change class of an object in app update?

I have two objects of class WidgetClass in my stored model.They are saved each time the app exits and reloaded each time it开发者_JAVA技巧 starts.I want to update my model to make one of them a Widget[详细]

2023-02-01 06:12 分类：问答
Useful stock SQL data models?

As a parallel to my question about Useful stock SQL datasets, I wonder if anyone has come across a library/web page/wiki/etc. that contains stock SQL data models.For example, the problem of maintainin[详细]

2023-01-31 19:58 分类：问答
Modelling datamodel for document database

I\'m starting out with Raven DB and am trying to wrap my head around the different document-model paradigm...[详细]

2023-01-29 11:45 分类：问答
Help me to get better understanding of Digg's Cassandra data model

http://about.digg.com/blog/looking-future-cassandra I\'ve found this article abo开发者_开发百科ut Digg\'s move to Cassandra. But I didn\'t get the author\'s idea of Bucket for pair (user,item). Littl[详细]

2023-01-28 13:36 分类：问答
How to distinguish in master data and calculated interpolated data?

I\'m getting a bunch of vectors with datapoints for a fixed set of values, in the example below you see an example of a vector with a value per time point[详细]

2023-01-23 21:52 分类：问答
Is there an Erwin Macro to pull out the table comment/definition?

I created a script template to generate the extendend properties to basically to include the data dictionary in the database, however, i couldn\'t find any macro to read-out the table comment from the[详细]

2023-01-22 09:20 分类：问答