One database or several? - mysql

I am developing a CRM in Laravel and the following doubts came to me.
Client A will have access to 1 database + 5Gb of emails and Client B will also, but how should I organize this on my server?
Should I create a database called banco_a and another banco_b? Is there another way?
If anyone can give me a "north" of which would be the best way for this, I will be grateful.
Remembering that my application could reach 100 clients or 1000

According to your requirements you have to implement multi-tenancy system, ie architecture in which a single instance of a software application serves multiple customers, for detail read this article https://whatis.techtarget.com/definition/multi-tenancy,
In laravel there is package for multitenancy. https://laravel-tenancy.com, which is awesome in my knowledge.

Related

Can i use MS SharePoint 2016 for a custom web app solution

I have a question regarding the best solution to adopt for a client. My client has an existing Access
database with tables, queries, reports and lots of them! He requires an application/solution that will :
allow it to be used online/cloud.
allow the application users to login and access only their record data.
allow my client to have a main-admin account to login too and adminster all client accounts.
allow the application users to add a text box via a form to add a new field to the table
allow application users to upload documents against a record
Heres my dilemma; as a PHP/Open Source developer i could write an application which does all of this; having already used a 3rd party program to convert his Access dB to MySQL (though i will have to manually convert the Access Queries forms to MySQL Views.
This is my preference since i have total control and confidence with the dev tools i'll use. Down side is it will take absolutely ages because of the number of tables and queries. Alternatively, i recently read about MS Sharepoint which i know nothing about other than what i read. SharePoint looks like it could handle this solution very easily especially the MS Access stuff, Microsoft now
as of 2018 recommend using 'PowerApps' for building Access Apps in sharepoint. It all looks quite do-able but i'm not a MS aficionado and dont want to get in 'out-of-my-depth'.
Having done (and enjoyed) many years of MS VB development up to about 5 years ago, i know Sharepoint will allow you to work at a level which requires less Programming skills and more Power-user skillsets.
Can any one advise which they think would be the best route, im not asking for the finite detail - just a pointer from anyone that uses Sharepoint and knows its capabilities beyond the little i've read. Im looking to invest some time into learning it for future projects as it looks great; but for this project isnt it a little to simple???
Many thanks
Access is a Windows application - and therefore not browser based. There is no port to html technology - it is a complete re-write.
For geographically distance users - as with any Windows application - the available solution is the Remote Desktop technology.
It is / would be unusual for any application to allow the end users to redefine the table structure. Thus the idea of adding new fields to a table is not feasible but perhaps one is using the wrong terminology and intends instead to be adding new records to the table - which would be routine.
The other features are all do-able in Access.
For years we've seen users wanting a magic transform from their Access Windows application to a web based application. It simply does not exist.

Windows phone 8.1: Need suggestion on what database should I use

For my Windows phone project (it's a Universal app), I have a set up that has a country and a phone number in one of the page. There are about 7 other pages that requests the user for additional information. But for starters, let's just stick with the first one, that asks for the country and the phone number.
I read through a million posts in Stackoverflow and other websites alike, to know what database system is best to implement with the sort of app I am going to be developing, or hoping to develop.
Here're my findings:
Azure SQL: I have an Azure account and I can use the Azure SQL service to store the user-input data directly to the database (when the app goes live), or while in the testing phase. But I got to know that feature isn't really working well as windows phone cannot readily update the data to Azure SQL, on realtime basis. Is it so?
MySQL: I thought I'd create a local MySQL database, for testing purposes, so as I input the data (in the emulator perhaps), the database saves it. I am unsure how I can implement this. I can't find any article I can read that can help me with this. There are with ASP.net, but it isn't what I am going to be using.
SQLite: I know for a fact the data can be stored locally, by using SQLite, but I could like to know if the locally stored data can be later updated on a server-side machine (i'd prefer Azure SQL, but MySQL is also OK with me). If it can be, i wouldn't mind settling with it. If it can't, what can I do?
It all boils down to this: What's the easiest way to store data entered in a textbox (lol, yeah!) to a database (locally or server-side)?
Your efforts to help me will be greatly appreciated!
Thanks!
You can stay on Azure SQL if you have an account.
It works fine and it updates database on the go (sends json as far as I remember), so you shouldn't worry about data being stored in a cloud. Moreover, it is super-easy to use it for your needs (store data from textbox).
Azure SQL will get your bootstrap the fastest for your application. There is no need to deploy MySQL or SQLite and managing your DB. There should not be any concern about updating the DB live from the app.

Couchbase share views among developers (import/export functionality)

At first, this question appeared to be too trivial to me to actually require a Stackoverflow post. However, after executing many Google searches for the information, I am at a lost when trying to figure this out about Couchbase.
In Couchbase (I am using the 2.2 Community version), how do I share views among developers? Is there some sort if import/export functionality available? If not, then how does Couchbase intend for developers to share the views that they are using without needing to do manual copying/pasting? It is obvious that the code that a development team would write for querying Couchbase will require accurate view names. Without having a way to send a developer a view file, to accurately setup a Couchbase DB, how can it even be possible to develop with Couchbase locally as a team?
I'm sorry if I sound a little desperate or harsh here, but if it isn't possible to share views among multiple developers, then I don't see how Couchbase can be a viable DB solution for a team of developers trying to share database configuration, similar to how a team using an SQL DB would share schema files to set up the DB.
Several ways you can approach this:
1) Create views programmatically as demonstrated here in java:
http://tugdualgrall.blogspot.com.es/2012/12/couchbase-101-create-views-mapreduce.html
or here in node.js:
http://www.tuicool.com/articles/RvYbQn
2) Store all your views in your version control system (This is the option I use). If you are developing locally then only you need your personal view code, once they are working and your tests are all passing then you can check them in.
I assume you'd then be developing on an testing environment so yes sadly here you'd have to update the views either by hand or by using option 1.
You could also take a look at perhaps using this tool but only for views: http://www.couchbase.com/communities/q-and-a/how-bulk-import-design-docs-and-views-couchbase-server
This functionality currently is not available in the admin UI.
There is a defect/enhancement open Ability to import/export views MB-8436. You can leave there your feedback and vote for it so it will be included in the next release.
In the meantime you can use Design Document REST API
Also there is a workaround blog

Best Place to House the .Net ASPNETDB Membership and Roles DB

I am currently developing a business application that will ultimately be hosted at a .Net hosting company. The hosting company provides 1 MSSQL DB (with 2 users) and an unlimited number of MySQL DBs. Purchasing a second MSSQL DB is out of the question as my boss doesn't want to pay any more for the hosting. I am trying to determine the best place to house the ASPNETDB for site authentication and roles.
My first thought was to take advantage of one of the MySQL DBs for this purpose but have noticed that it appears to take some hoop jumping to accomplish this option. Another option may be to keep the ASPNETDB in a Express DB file.
Finally, I have also thought about housing it in the MSSQL DB with the application tables. This option scares me because if I accidentally screw something up in the application, the ASPNETDB tables could be open to SQL injection. Of course, I will do my best to ensure this won't happen anyway, but would like to know I have that extra layer of security knowing it is housed in its own DB.
The hosting company does allow two MSSQL DB users, so this in theory would allow me to have one user dedicated to authentication and restrict the other user from being able to access the ASPNETDB tables all together.
As a fellow developer, what method would you recommend? Thanks in advance for your help.
Use the MSSQL DB and use the preconfigured ASP.NET Membership provider and Roles provider. This is the easiest method. Restrict Table level access and use only Stored Procedures.
Sounds like you are a bit green to this stuff, am I correct? Because of that dont create too many headaches for your self. Dont try to put it in mysql, thats a mistake. I know its free, but it was written to work with MSSQL. Yes, using the other user is a good idea. Just be sure to sanitize your inputs and use properties on your SQL statements or better yet use an ORM like entity framework or Linq to SQL at the least.

Database strategy for over 10,000 instances of an ERP

I have a moderately large rails ERP application having around 80 tables . I use MySQL . I recently received a client requirement which needs me to deploy the same application for roughly 10,000 offices(an instance for each office). The central office(superadmin office) must be able to view details from all these offices .
After talking with the client this is what i could come up with :
Configure the app for 10,000 offices , there will be some new models for the data that need to be accessed by the superadmin . The tables for these models will be in another database (superdamin_database,not the one used by a particular office) , to which data to be reported to super admin will be written
I intend to make another app that would connect to this superdamin_database to present the data to super admin .
So i will have 10000 app_databases and 1 superdamin_database
Where are my flaws in this plan ? What is the weakest point in this plan/structure that would render the application unusable due to a server load ? What is the rails way to do this .
Hope the experienced guys in here would give a thought into this .
Thanks in advance for your reply ,
Sam
if i understand your question correctly
I recently received a client
requirement which needs me to deploy
the same application for roughly
10,000 offices(an instance for each
office).
you are violating the basic rule of a web application. Host in one place and access from anywere. I'm not sure why you want to install each of your application instances in these offices instead have a one hosted system which can be access from any office.
having hosted your application in one place will make your life easy when it comes to maintenance and upgrades.
BTW how on earth you are going to install 10,000 applications ?!
My advice is
Have a one single web application and let it used by your client (in the mentioned offices) and have a good layered access control system so that you can control which data access by which user
by that way you dont want to do this
I intend to make another app that
would connect to this
superdamin_database to present the
data to super admin . So i will have
10000 app_databases and 1
superdamin_database
hope you got my idea,
cheers
sameera
Perhaps the concepts discussed at http://aac2009.confreaks.com/06-feb-2009-14-30-writing-multi-tenant-applications-in-rails-guy-naor.html will steer you in the right direction