MySQL is an open-source, relational database management system.

learn more… | top users | synonyms

1
vote
3answers
171 views

Tracking time users spend on my website

We are going to track user engagement (i.e. time spent on website, most viewed part/page of the system, etc). I don't see Google Analytics / MixPanel being able to do this, since we have to analyze ...
1
vote
2answers
169 views

Roles and permissions: a good approach in defining permissions?

My application has users and administrators. The administrators split into two: super-admin and limited-admin. The super gets all permissions while the limited can be configured to inherit just the ...
1
vote
2answers
266 views

What's the best way to track updates when syncing data from MySQL remote server to local SQLite database?

I'm making an iOS App, well, two actually. App A will be able to write TO-DOs to a remote MySQL database, and App B will be able to read what App A has written/modified. App B needs to be always ...
-1
votes
2answers
177 views

How to fit requirements into MVC

Let's say we have a website requirement to allow User functionality. Simple! We create the UserModel, UserController and UserView. Works perfectly. However, let's assume that User has a many-to-one ...
2
votes
1answer
106 views

Conflict resolution for two-way sync offline sync

How do you manage two-way synchronization between a 'main' database server and many 'secondary' servers, in particular conflict resolution, assuming a connection is not always available(offline ...
1
vote
1answer
63 views

Database integration of Rails and Laravel apps

I have some very small apps on a VPS running ruby on rails and a co-worker also have some of his own apps running on laravel at another VPS. So far we dont needed to share any data among the apps, but ...
0
votes
1answer
469 views

Like structure table with Laravel and showing the most popular content at top

I am using Laravel to creating a website, my users can post questions and other users can write their comments under the post, each comment have Up vote and Down vote, and users can voting for ...
0
votes
1answer
163 views

Improve processing of data (and structure) from flat file to CMS Database

I have a flat file (CSV) that brings me the data I want, but it needs to be cleaned and processed before it can be used, so I built an intermediate Database (MySQL) in order to get the structure from ...
0
votes
1answer
149 views

How to implement a Daily Recap email of Database records modified the previous day sent to Subscribed Users like Basecamp does?

I am building a Project Management module for SugarCRM. It consists of a "Project" which has information on the project like Name, description, start and completion dates, creator name, status ...
0
votes
1answer
349 views

Should I use session or cache to keep the time it last polled when polling to server at intervals?

I'm building a web chat app using session to keep the time the app last polled so that the server can determine whether messages exist between the current polling time and last polling time. It works ...
-4
votes
1answer
32 views

Migrating MYSQL functions and stored procedures to SQL Server

The company i'm working for is selling HRIS management software. It was built using ASP and mysql. But one of our client's demand is for it to be based on MS SQL Server. our team is made up mostly of ...
5
votes
0answers
59 views

Algorithm to generate Edges and Vertexes outwards from origin with max multiplicity of 3

I am creating a 2d game for a website where the universe can grow extremely large (basically infinitely large). Initially, the universe is composed of 6 stars that are an equal distance from the ...
3
votes
0answers
25 views

Using mysql 5.7 Json Columns for EAV

I am developing an e-commerce product and I have been able to implement all functionality and am left with allowing users to create additional attributes for a product. Right Now I have two options. ...
2
votes
0answers
210 views

PHP MySql - Statistical Reporting - Best Approach to query appointment system time utilization

I have built an appointments system for various medical practices. Practice schedule appointments - I am looking to provide analysis on the amount of time that has been utilised by the practice. I ...
1
vote
0answers
32 views

Compiling data from multiple API sources, multiple languages, into a single database (MySQL or Mongo)

I'm thinking about a database schema, and would really appreciate if some of you could look at where I'm up to and offer some advice.. The mission - We have to write a program that will fetch data ...
1
vote
0answers
1k views

Android, PHP session and JSON object retrieval

I am working on an app in android studio.. it currently has a login and registration system that are linked to a database and both work perfectly. I am now trying to carry over the user id value ...
1
vote
0answers
36 views

how to reduce or stop duplication of relation's entry in treeview

I want to create tree-view for display or show family member's relation. For this I created 3 tables i.e following. familyDetails->[f_id,fname,lname] relations -> [r_id,relation] .....//e.g ...
0
votes
0answers
11 views

SQL data model for nested milestones/timframes

I'm currently weighing different approaches to a data model and I'm curious what others would do. The main nugget of info is ACTIVITIES, which belong to a chain of milestone time releases. Stages ...
0
votes
0answers
31 views

Compute geographic areas Laravel

I am developing a backend for a taxi app in Laravel 5. Up to now, served areas are defined by the admins but I would like to change the way it works. I would like each taxi driver to define their ...
0
votes
0answers
77 views

BCMath vs MySQL: performance

Scenario I am working on a web application that handles financial transactions, and my code will need to be reusable for everything from consumer carts to manufacturer/distributor shipments. The ...
0
votes
0answers
37 views

Advice on paging tree structured data

I'm in the process of building web based a commenting system, for which the comments are rendered in a reddit / disqus style tree structure. The MySQL schema uses a string of ancestor id's, and the ...
0
votes
0answers
25 views

Edit files on multiple domains on Mambo CMS

I have multiple domains on same web server, all running on Mambo CMS. Each site uses same template and has roughly same site structure. I need to edit the same page on each website - is there a ...
0
votes
0answers
348 views

Best practice: dynamically handle variable data, multiple file uploads and encoding with jQuery, AJAX, PHP and MySQL

I'm currently writing an e-learing web-application. I'm sorry if this is information overkill but I think it's better to describe it in detail so you get the idea. I have made thought on every point ...
0
votes
0answers
181 views

embedding LEFT OUTER JOIN within INNER JOIN

I am having some problems with one of the question's answered in the book "SQL FOR MERE MORTALS". Here is the problem statement Here is the Database Structure Here is the answer which I am ...
0
votes
0answers
47 views

MySQL left join + performance

SELECT * #Case 1 cp.* #Case 2 FROM crawl_page AS cp LEFT JOIN artist AS a ON cp.cpURL LIKE ...