Tagged Questions

1
vote
0answers
28 views

Need help to design model with multiple rights

For a website, I have multiple elements that need to be moderated by many different users. Until now, I have always used Role-Based Access Control (RBAC) model but I want a more flexible model. I ...
3
votes
3answers
68 views

pros/cons of different ways to store whether a record is one of two options?

I am trying to store whether an address is a Work address or a Home address. There will never be another type of address. I'm wondering what the pros/cons are of the different ways to store this, ...
1
vote
1answer
38 views

Database design: nested tagging

I have a situation that after an initial thought ended in the following tables: section: id, name section_tag: id, name section_tag_map: section_id, tag_id item: id, name ...
1
vote
2answers
65 views

Foreign Key constraint on fixed value field - Ever appropriate?

I have a short (15 rows) look-up table that lists the valid values for several columns in the database. I don't think it can be considered a One-True-Lookup-Table, it is about a single definite ...
2
votes
0answers
38 views

Replicating databases for local and cloud instances

Forgive me if this is an inappropriate place for this architectural question but I'm not sure where it best fits in the StackExchange family. I have been tasked with developing an online/live auction ...
0
votes
2answers
54 views

Adding a bool column; tracking untouched vs. false

[backstory] I have a simple database of our current Widget inventory. It averages just dozen columns across five or six tables, but has a huge number of records already. Some Widgets came with ...
1
vote
2answers
72 views

Extensible Asset Database Schema

Background I work for a decent sized company in the hardware sector. Currently, we have a number of varying assets that need to be tracked. Until recently, this was done by hand as was an ...
1
vote
1answer
74 views

table design to track significant events associated with an item

An Orders table I'm dealing with at present in design phase has about 10 or more columns. Each OrderID in the Orders table will have certain significant events or milestones. The number of Orders ...
6
votes
4answers
163 views

Database Design - different objects with shared tagging

My background is more in web programming rather than database administration, so please correct me if I'm using the wrong terminology here. I'm trying to figure out the best way to design the ...
0
votes
2answers
77 views

How to design data about a column can belong to the whole table?

I'm not a DBA so I apologize for lack of knowledge. Here's my situation...Say I have several tables. Products, Customers, Vendors, etc. Our application may have a help text for some of the data in ...
1
vote
3answers
363 views

Coding an accounting database from scratch?

My new medical practice is picking up fast and my homemade Libreoffice Calc spreadsheet is quickly becoming cumbersome to track patient visits, accounts receivable, overhead reconciliation, etc. Most ...
1
vote
1answer
161 views

Payment methods conceptual and logical model

I need to create a conceptual and logical (normalized) models of parking house according to the requirements below. It looks to me as a very simple concept that doesn't need all tables to have ...
3
votes
3answers
316 views

Is a surrogate key better than a natural key in this case

I copied this code from here: CREATE TABLE records( email TEXT REFERENCES users(email), lat DECIMAL, lon DECIMAL, depth TEXT, upload_date TIMESTAMP, comment TEXT, PRIMARY ...
0
votes
1answer
96 views

Design database to query a date range for scheduling

I am designing a db that should include a table with fields for datetime scheduling, so as I know what kind of queries will be made​​ periodically I would like to design the table for them to be as ...
1
vote
3answers
90 views

Storing summed values

I'm trying to create a database to store values for Profit & Loss statements and I'm wondering what the best way to structure this would be. Specifically, amounts that are are equated from other ...
1
vote
2answers
95 views

For a boolean settings table, should I toggle a flag, or insert/delete?

I have a settings table. SETTINGS -------- settingId int settingName varchar(20) Each user can choose to apply the settings, or not. The interface allows them to quickly toggle the settings on ...
4
votes
1answer
1k views

Modelling Relationships in an E-R Diagram, Table or Foreign Key?

Should a relationship in an E-R diagram be created in the database as a table or a foreign key? For example: a tutor lectures a class I see it as three possibilities: there is a "lectures" ...
1
vote
2answers
253 views

Database design experienced view

I want to make a database that stores countries, their respective states, and cities. I am confused how to normalize these. Can anyone help? My ideas: Table 1 Countries (id pk, name , code) ...
3
votes
2answers
156 views

Database modelling best practice question

I am modelling a database for an application I am developing and I am in front of a choice for which I would like to know what the best practice is. Let's say I have a Documents table and a Users ...
2
votes
3answers
226 views

designing multiple tables while eliminating duplication?

As I'm working on an educational website, I'm facing a problem with my database design scheme - I can't find the correct design that eliminates duplication in the tables I'm creating. What I'm trying ...
6
votes
1answer
546 views

What should every DBA know? [closed]

As a SysAdmin who "wears all the hats", I find myself increasingly pulled into database projects. I took one database course back in college and since then I've always scoured resources online (like ...
1
vote
1answer
68 views

Configuration Persistance Design

We have a well designed and normalized DB, but, there is a requisit that could cloud this design. This image shows the design of part of the DB. The main functionality of our application is to create ...
2
votes
1answer
362 views

How to design database for tree view with an infinite depth

I am trying to combine C# and SQL2005 for an application which need to have tree view control. One of user requests is to that tree view can user friendly grow into infinite dept of child nodes. That ...
2
votes
2answers
568 views

Looking for example design of using an SQL database as a queue for throttling web service requests of multiple users

I'm designing a system for multiple users to queue their requests to a web service which takes requests such as creating new entries, changing entries, requesting data. Many of the web service calls ...
1
vote
1answer
234 views

Normalization: Should common columns of two tables be pulled out into a third table?

Should I further normalize my current design to eliminate redundancies? I have the following tables: empl: standard user table empl_cat: employee "category" empl_admin_cat: administrative ...
12
votes
4answers
2k views

Where should you define foreign keys?

Is it better to define foreign keys in the database or in the code part of an application?
9
votes
5answers
4k views

Splitting Tables in MySQL. Good practice?

I have started working on an existing project and the previous developer had split up a table into 10 separate tables with identical schemas but different data. The tables look like this: ...
2
votes
3answers
388 views

View Design Best Practices

When designing a view, would it be best to retrieve the ID fields where FK relationships exist between the joined tables the desired description field obtained through the FK id relationship both? ...
0
votes
1answer
121 views

What are the first necessary actions needed to help secure a database's schema & data? [closed]

This smells like an open-ended, opinionated, wiki free-for-all, but I'm not trying to make this a battle of opinions. It seems like there should be a good checklist out there for all to agree on ...
3
votes
1answer
412 views

Webapp & MySQL: Row Level Security

I am trying to emulate row level security on a webapp I am developing using MySQL. Using this method: Creating a database with the the required tables where the data pertaining to all the users will ...
1
vote
1answer
158 views

Design Tagging module in the database

I've a database system which we want to define tags for many tables into it. For example I've videos, photos, ... different entities that we wish to make them taggable. The tags could be anything. By ...
4
votes
2answers
535 views

Best way to handle dates prior to 1000 A.D. in MySQL?

I am creating a database for records that extend prior to 1000 AD, but MySQL Date and DateTime fields only support dates starting at 1000. Is there a way that would be more convenient than either ...
5
votes
1answer
444 views

How to handle “reference tables” in CouchDB?

What's the best way to handle "reference tables", tables that contain static data, for example a list with various kinds of ingredients for food? Multiple documents, one for each ingredient One ...
19
votes
5answers
4k views

Best practices on common person fields (Name, email, address, gender etc…)

What are the most common best practices on length and data type on common fields like: First Name Last Name Address Email Sex State City Country Phone Number etc....
7
votes
2answers
230 views

Can I losslessly decompose this table?

I've stumbled across a database design problem that's out of my league, and my go-to DBA guru is off on fire drills. In essence, I have a table with the following primary key: child_id integer ...
31
votes
11answers
2k views

How could DBAs be more 'programmer friendly'?

The answers and comments on the dba.se version and programmers.se version of the question "What are the arguments against or for putting application logic in the database layer?" are very revealing ...
1
vote
2answers
260 views

Determining sizes for Separated Partitions of programs, data and logs in SQL Server

As per the recommendations of the CIS benchmarks for SQL Server, I want to create separate partitions for the data, the programs and the logs on my SQL Server dedicated server. Question is, what is ...
8
votes
2answers
8k views

Database model with users, roles and rights

I have a database model with a user table and role table. I want to control the access (rights) to up to 10 different elements. The access can be granted to either a role or a single user. Below is ...