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I have limited exposure to databases. I am learning about web frameworks (Vapor) and all the tutorials add a database provider of some sort to their projects. Can you please explain to me what a database provide is and its role in a web app?
The tutorial I am following is integrating this provider: postgresql-provider
I have seen the term used a couple ways, but in a general sense, a database provider is a framework, driver, or object library which enables your web application to send SQL statements to a database and receive data.
Sometimes the provider is a class library in your web app's language (here are a few for the .NET framework, for example). In other cases it may be a type of ODBC driver which you can access using the ODBC standard.
A database provider is said to be written with packages like PL/SQL or any other database package.
http://www.thessaloniki.gr/portalHelp2/ohw?topic=provwhat_htm&locale=en#DBP
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I have a single layer mvc project in abp framework, I want to use ms sql server and postgre sql in this project, so I need to use two databases, how can I do? Can you help me?
I added and configured 2 context classes, but couldn't use sql and postresql together. I want to use single tier mvc and 2 databases.
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Is there a way in swift (5) to access a relational database? (SQL Server or Oracle)
like JDBC for Java or ADO for .NET?
A code example will be welcome.
Solution:
There is a native client for SQL Server on GitHub: https://github.com/martinrybak/SQLClient/
Remarks:
Recently, connecting clients directly to a DB server is considered to be a very bad practice, especially for security reasons.
Prepare an API server and construct RESTful services which work for you app. You may choose any languages to implement the APIs.
(My favorite way to construct RESTful services for now is using ASP.NET MVC, but not many clients listen to my proposal...
One of my clients chose Java and Ruby, and another, PHP.)
And your app can use many HTTP-based communication classes and methods. Most of them are easily accessible from Swift.
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I am new to both responsive web design and angular and I am working on building a web page that will access database and display things based on data in one of the SQL Server tables. Could someone please point me in the right direction of what can i use to grab data from the database? Do I need a web service? data component? what technology would be best to use?
For the responsive aspect, you can use simple CSS, media queries or any library designed for this purpose (like Twitter-bootstrap for example).
AngularJS won't access database directly since it's a client-side language. You will need to build a server-side application to access the database. Then, your Angular components can call your server-side application to retrieve data.
AngularJS modules + any-technology web-service can be a suitable solution.
The choice of a technology over another highly depends on your needs and constraints. Unless you can ask more precise questions, we cannnot help so much.
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I want to create an asp.net mvc website with One mysql database but i have so good as no idea what I'm going to need..
So my question: how much servers do I need? Do I net an extra server for my database? Do I need any server? Do I need windows or is Linux/Ubuntu enought?
Well I think that's enough!
At the end I have to say sorry for my maybe silly questions but I don't have any idea of that stuff..
Why do you need server.
Server is place where you upload your site and users view the data. Server can be of Linus OS or Windows.
For .NET technologies like asp.net you need windows server.
For PHP etc you need linux.
Mostly the websites on small scale has one server. but it can be increased later on depending on your traffic on site and also size of your application.
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How does a web server and database server work together to provide the necessary services and information to the client's web browser?
Originally, I thought the database and the web server were one and the same (that is, I thought the database was on the web server); but apparently they're separate entities?
Your question is verrrrrry open ended, but I think you will find the following helpful. For this I will be using PHP and MySQL references, but there are many out there.
Your second question first: They are separate services that can, but don't have to be, on the same hardware. If you are on Linux, this is often referred to as the LAMP stack (Linux Apache MySQL PHP)
As far as the actual integration, this is done with SQL queries, that are run using PHP. The result of those queries is then parsed and formatted, also using PHP. That result is then passed to your web browser using HTML.
Like I said, very open ended, but this should give you somewhere to start.