normalization

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How to redesign an existing MS Access table in SQL server

I am in the middle of rewriting an MS Access database that currently is not normalized and is very poorly designed.My issue in this redesign is surrounding the way they move data from day to day betwe[详细]

2023-03-26 05:17 分类：问答
BCNF Decomposition (Database Design)

I\'m trying to decompose several tables into BCNF. I believe the first one is decomposed correctly, but I\'m unsure whether or not the others can be decomposed. Any help is appreciated[详细]

2023-03-24 19:06 分类：问答
Database user scenario with multiple type of user

I am designing a database for a Yii project, the scenario is a user will be ONLY one of the following type: employee, company and business owner person (i.e. the owners who manage companies and employ[详细]

2023-03-24 09:04 分类：问答
Normalizing a Phylogenetic Tree in R

When working with phylogenetic tree data in R (specifically when working with \"phylo\" 开发者_如何学运维or \"phylo4\" objects) it would be useful to normalize branch lengths so that certain taxa (the[详细]

2023-03-23 17:10 分类：问答
Football DB Help

Can anyone let me know h开发者_Python百科ow to normalise this, I\'mstuck on the home/away team bit. Cheers[详细]

2023-03-23 14:55 分类：问答
Determining the functional dependencies of a relationship and their normal forms

I\'m studying for a database test, and the study guide there are some (many) exercises of normalization of DB, and functional dependence, but the teacher did not make any similar exercise, so I would[详细]

2023-03-23 01:48 分类：问答
Unicode::Normalize - query about the 'Normalization From'

#!/usr/local/bin/perl use warnings; use 5.014; use Unicode::Normalize qw(NFD NFC compose); my $string1 = \"\\x{f5}\";[详细]

2023-03-22 08:02 分类：问答
Normalization of intensity, matlab

I have real world 3D points which I want to project on a plane. The most of intensity [0开发者_JS百科-1] values fall in lower region (near zero).[详细]

2023-03-22 01:51 分类：问答
MySQL event-based support ticket system

Afternoon all. I\'ve recently been tasked with working on an event-based support ticket system, but I\'ve encountered a lot of issues and I think the problem is the database structure.[详细]

2023-03-21 16:28 分类：问答
Does storing aggregated data go against database normalization?

On sites like SO, I\'m sure it\'s absolutely necessary to store as much aggregated data as possible to avoid performing all those complex queries/calculations on every page load. For instance, storing[详细]

2023-03-21 11:38 分类：问答