I spent last couple of hours searching the web for this solution and I didn't find any, so I wanted to ask here if anyone has experience with something like this.
I started working on a very big Rails project and I've got some very strange request from the project manager.
He wants me to use 2 different MySQL databases for different environments (which I already found how to do here
Apart from this he wants to make a small local database which would serve as an autosave vault for the recent documents (maybe 5-10 recent documents) and he wants this database to be a SQLite.
Since I just started with the Rails recently I didn't even know if this sort of connection is possible, and is something like this even possible in Rails.
I also thought of using a Connection Pool to ensure thread safety.
Any advice and help is appreciated.
Related
I'm creating a mobile app for an existing website and trying to connect to a local instance I have running on a MySQL workbench. I've seen others recommend against the use of MySQL but I'm stuck with it, since that's the current database. I'm using expo to run my React Native code. Do I need to use a server, like "MAMP?"
Let me know if there is any more info that is needed.
You cannot connect your app directly to your database.
You will need a server/API that acts as an intermediate between the app and the DB. You can code it in most programming languages and if you know PHP, having MAMP on your system will allow you to build your API with PHP.
I've seen others recommend against the use of mySQL
You should definitely question their reasoning. I've been using MySQL for many years now in small and big projects and it has never been an issue. If they're comparing it to non-relational DBs like Mongo, I can understand, it's easier to setup and maintain a NoSQL database than a relational one.
I assume you're not that experienced but I still purposefully used some terms that may be new to a beginner. Since I don't know your skills, I will refrain from pointing you to specific tutorials/articles.
I recommend you to Google anything you don't understand from this answer.
I am trying to understand the trade-offs between going with MySQL or PostgreSQL on AWS.
Some considerations for me are that I am an amateur database user, so I need to be sure resources are available which allow me to overcome problems quickly. Along these lines, I bought the book 'PostgreSQL on the Cloud' and was all set to go with PostgreSQL since the book laid out a great use case.
One thing held me back though is that it is important for my work to be able to to easily use Excel as a front end for importing and exporting data into and out of the Database on AWS.
It looks like MySQL has an open extension which is fully integrated with Excel and is also well documented. My research into PostgreSQL uncovered a much more uneven integration with Excel and a lot of long painful group frustration a closer integration has not already occurred.
Right now, I am leaning to MySQL, but want to make sure I am not missing something.
Thanks!
Microsoft touts a PostgreSQL plugin as well: https://support.office.com/en-us/article/connect-to-a-postgresql-database-power-query-bf941e52-066f-4911-a41f-2493c39e69e4. Never used it, so can't comment on it.
You mention you are a beginner, so I'll add... be careful about security with either of these options. There are options to encrypt the channel between the client and server, which you indicate is running on AWS. If not secure, anyone would be able to effectively monitor the connections, extract credentials, and do whatever to your AWS-hosted DB. Generally, cloud-hosted DBs should be behind an authentication/authorization login process.
I have an existing application based in LAMP and now I am looking to develop a new module of the existing system in Meteor.JS (Only New Module, keeping the existing system as it is)
I know that Mysql is not officially supported till now in Meteor. I have gathered some knowledge that, using a package numtel:mysql, we may get support for mysql, but I feel that is also limited.
Now, my question is: I have one project built on a LAMP stack, and I wanted to develop a new module for this in Meteor using the same Mysql database, as its contains existing records. (I know that I have to do some workaround for sign-in and authentication between two, and that I have to take care too.
But I just wanted to know, Is it possible to use the existing system (Mysql database) and what are the possibilities of creating a new module in Meteor. Can someone put shed light into this scenario?
Also, can someone suggest to me how to do single sign-on between these two different applications (LAMP and Meteor)
What are the steps that I should take in order to achieve this?
This is a doozy of a question...
I am developing a new wordpress website to replace my client's massively sized blog (tens of thousands of pages). Their existing blog is built on a custom PERL blogging platform from 1992...so as you can imagine, it needs updating.
My job is to find the BEST possible way to migrate all of their existing data into a format that wordpress can understand.
The new theme is very advanced, and this job is very advanced as well. After searching for specialists, I can't seem to find anyone who specialized in this field. What would you do in this situation? Thanks!
I've done this before, it's not that hard. I approached it as a wordpress plugin. First get the plugin to connect to the old database and get it to pull the information you need. Then you can use native wordpress function to insert new users, posts, comments, etc.
I did it line by line, which isn't the most efficient approach, but it is the easiest. I used an AJAX front-end to display the conversion status and repeatedly call the converter back-end, as the actual migration took up to several hours.
If the site can't be shut down for that long while you migrate the database, you could either look at doing a proper bulk export/import, or lock old topics and migrate those over first.
My converter was for an old PHP nuke site, and due to the fact that we were using WP-United, I didn't have to worry too much about user credentials and comments. However, the code might help you get started: http://www.wp-united.com/releases/php-nuke-converter
I have done a couple of these Wordpress migrations. The theme you're using in Wordpress is really not that big a deal, most likely. Themes in Wordpress don't ordinarily impact the database structure.
The Wordpress side is easy, it's in MySQL in most cases. The place to start for you would be to determine how the data in the PERL blog is stored. If it's a custom blog solution, there probably isn't a script you can find to do the migration. Hopefully, it's in a data form that will allow you to do a data dump in a format MySQL will allow you to import using something like phpMyAdmin (a popular GUI for MySQL). At that point, you can create a MySQL statement to match up the relevant fields in your old data with those in MySQL. If you're not comfortable doing it and want an expert, the thing to do is find out how the PERL blog stores it's data and find someone who is familiar with both that format and MySQL.
I'm working on an eCommerce website for a small merchant. This merchant uses Opera (which is based on Visual FoxPro) to manage his in-store inventory, and would like the online store inventory to reflect the in-store inventory.
I'm guessing that my first step is to set up a way to regularly transfer the information from the VFP database to a MySQL database on the website's server. Is there an established process for this? Am I even approaching this problem from the right angle? I've heard a lot about ODBC, but am unsure as to how to implement it or if it's what I'm looking for in this situation.
If it wasn't obvious by this point, I'm in over my head here, and would appreciate any and all advice you may have, including links to articles or tutorials that can help improve my general understanding of all the moving parts here.
Thanks much.
Co-worker developed synchronization process between VFP and MSSQL2008. WCF service which took input directly from VFP.
On other project - as far as i remember, when we tried ODBC .NET data adapter, it had problems with encodings and foreign languages. That's why we used COM+, serialization for communication with .NET.
But it seems to me you are using PHP (eCommerce=>Drupal=>PHP) so you are in completely different situation.
In your case, i would start with checking out if Opera (i guess it's this Opera) provides built-in export and eCommerce provides built-in import. Mostly because it might be tedious work to sync data manually from 2 apps coded by someone else. Then i would research if i/o can be joined and automated (something like scheduled task on win environment). Unfortunately, can't help much more because i'm unfamiliar with those tools, products and technologies.
Anyway - it seems to me like quite hard and dirty task and i wish you good luck. :)
Depend on what is that you are using to implement the website.. in general it is pretty easy with ODBC (In Java , I did it using the jdbc-odbc bridge)