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1
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1answer
29 views

Database design - need someone to guide me

Im probably doing this wrong, but here it goes. Im trying to build something like very basic CRM. I know there are plenty of them, but I want something to learn actually. Requirements: Some ...
3
votes
3answers
114 views

Redesigning a table that has a lot of columns (not always related)

I'm new to database stuff so I apologize if I say anything ridiculous.. I work for a company that runs a website for a certain industry. We're not very large at the moment but our parent company ...
-1
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0answers
32 views

Is a string list of primary keys a Foreign Key?

In table A: I have an attribute which specifies the name(string) and is a primary key to that table. In table B: I have an attribute which is also a string (contains list of strings separated by ...
0
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3answers
93 views

Is it better to use an ID (int) or a Name (varchar) as PK for a table? [closed]

Let's suppose I have an ORDERS_LINE table and a PRODUCT table and the ORDERS_LINE table must have the information of which product was ordered. I prefer to use a Primary Key based on the Name since it ...
2
votes
2answers
40 views

Table design question for a `Check all that apply` survey

I'm looking for advice on a design for a portion of a table. Background We're collecting survey data for multiple sites, and one question is a check all that apply. Currently, there are from 2-5 ...
1
vote
1answer
69 views

Database design - load multiple excels daily

My first post ever :) Apologies if I am not so clear with my question - here I go... I have a design problem from database schema perspective. My use case is following: On a daily basis, system ...
0
votes
1answer
60 views

Alternative to RDBMS: Modeling Exam/Testing data

I'm a born and bred relational database guy and C# programmer dude. IBM DB2 & VB.Net in school. TSQL & C# at work. I'm planning a project for fun: Designing a Testing platform that goes from ...
1
vote
2answers
40 views

Schema/Structure to handle secondary computed data

I'm trying to design a LAMP-based website for my pinball league, which plays competitive pinball every week in match play. One of the features of our league is that we convert raw scores to ...
1
vote
1answer
171 views

Help in designing mysql table for large project [closed]

I am planning to create a website which allows different Companies to register in it. It will have Employees module. Each company will have a CompanyId. How do I maintain the Employees table, since in ...
1
vote
1answer
160 views

How to handle multiple hierarchies in a data model?

In Sql Server, there is a datatype called HIERARCHYID which helps with hierarchies. In our environment, we have patient data that needs to be classified under multiple hierarchies. Example 1: ...
1
vote
1answer
151 views

How to model when you could have many (thousands of) attributes to a table (product)?

We have a main table, let's say, Product. It has several general attributes like 'Product Name', Manufacturer ID, etc. As of now, all these attributes are implemented in the data model as columns to ...
2
votes
1answer
199 views

Optimal table design for a medical center rental service and recurrent shifts

I'm trying to figure out the optimal design for the following situation I'm being presented. I'm developing a medical web application with MySQL as db engine. A medical center has 14-16 offices/rooms ...
1
vote
1answer
702 views

Design for active/passive Master-Master mysql Setup

I have a dozen virtual machines running application + mysql instances (version 5.1 up to 5.5). Due to the bad I/O of the virtualization I want to buy a physical server for mysql and move all mysqldata ...
3
votes
2answers
249 views

Is there a well-known name for this “poor man's ref. integrity” schema design pattern?

Is there a name for the following database schema design/pattern? My eventual goal is to find more literature about the subject. Today's cursory net search was too full of generic words to be able pin ...
4
votes
2answers
234 views

Data Modeling for different roles

This is my first post here, so I hope its clear enough. I want to make an application for people who sell, buy, rent and fix a certain product. I need to create a database that would keep the data of ...
3
votes
2answers
121 views

What is the correct way to specify a record as the *current* record?

The two options I have thought of is either to add a column boolean column called Current onto the table; but I'm sure that would violate some level of normalisation due to more than one record being ...
3
votes
1answer
402 views

SSIS Design consideration with object variables

I have an SSIS package for SQL Server 2008 R2. In the package I am required to work with an Access database (one to many) and iterate through it running validation checks with the data. The validation ...
4
votes
1answer
297 views

Should I snowflake or duplicate it across my facts?

I'm building up a data warehouse to be used by SSAS to create cubes on, and I'm debating between two possible schemas. In my warehouse, I've got two different fact tables that tracking daily changes ...
2
votes
0answers
129 views

Two different ON DELETE paths, how do I need to change the schema?

For a project in school I'm designing a website that sells items via auctions. Think eBay, but on the complexity scale of school project. We went through the process of making an ER Diagram and ...
5
votes
1answer
1k views

SSIS package with BULK data load

I analyzed a C# program over the weekend for a customer that basically does the following: Truncate Table Fetch Data (source on these is either remote database or local database where job runs) ...