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1answer
67 views

1 million strings and exact match search

I need to chose the best solution (software and algorithm) to solve my problem. I need to store up to million strings and data associated with them. Strings are search queries and data is cached ...
0
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1answer
189 views

How to organize the tables of a MySQL database with several statistics data of several years?

I am developing an app that must provide statistics information about the distribution of the money that a person spends each year in taxes in the city where he lives. The user should select the ...
0
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1answer
273 views

MySQL DB structure with Main category and several nested sub categories

I am looking to create a set of fields on my webpage identical to what eBay uses on their category selection page when you are selling something. For my purposes I am doing motorcycles, power sports, ...
-1
votes
1answer
356 views

Calculating employee's work time

I need to store and analyze employee's work time. Currently, I've developed this table structure CREATE TABLE `hirefire` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `employeeid` int(10) ...
2
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0answers
57 views

Single table row “sharding/versioning” to customize values

Introduction Hello everyone, I have done quite a bit of searching and I cannot find a solution for my specific issue. There are a few factors that complicate my situation, which I have outlined ...
1
vote
0answers
357 views

Database design: Normalizing a “(many-to-many)-to-many” relationship

Short version I have to add a fixed number of additional properties to each pair in an existing many-to-many join. Skipping to the diagrams below, which of Options 1-4 is the best way, in terms of ...
1
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0answers
107 views

Are duplicates ever acceptable in a database

A warehouse system I am working on allows inwards consignments [type = 0] and outwards consignments [type = 1]. The user selects multiple products for each consignment and then multiple warehouse ...
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0answers
13 views

Does storing page views in my page table slow performance?

I am storing page views in a view_countcolumn on my page table. So every time the page gets loaded I increment the view count and update the entry. What affect can this have on the performance of my ...
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0answers
9 views

Database for large dynamic network graph - best practise?

I am constructing a MySql database which is to contain data for a large network graph. There will be thousands of nodes and ten thousands of edges. The nodes and edges will be assigned a category. ...
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0answers
18 views

Storing IDs of strings instead of strings?

I store every visit of a user to our site. In the table describing users (not visits!) I store his device name, device type (desktop, mobile, tablet), device manufacturer, browser name and version, ...
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0answers
32 views

Store both a city and its region?

I store various events (such as a search on the site) into a table (in fact I have two tables: one for the event and other (linking to the first) with characteristics of the event). Each city belongs ...
0
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0answers
30 views

Designing a multi-language searchable translation database

Good morning, I am currently building an application where I have different sets of terms(yes could be sentences) or words represented in different languages. Example: english | french | german | ...
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0answers
39 views

How should I restructure a table that contains multiple columns that contain similar, but not same data?

I currently inherited an InnoDB table that describes a product. In the table there are a few columns that describe the maximum height at which the product may be mounted. These are the columns: ...
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0answers
87 views

Using MySQL As A Graph Database, Can It Be Done Efficiently?

So I am currently working on a startup idea with a friend and we've come a long way, it's somewhat functional and I've tried to not let database design decisions slow the progress of the site. As of ...
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0answers
474 views

InnoDB errors after having deleted “ibdata1”

By accident, I have deleted the ibdata1 file in the MySQL directory because MySQL wasn't functioning correctly. After reading so many forums, I found a post that recommended deleting the 3 files ...