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Posts tagged database
I'm trying to build a proper understanding of what an OLAP[1] datastore vs an OLAP data engine is. I tend to put too much value on keywords like "engine" vs "data store." If it has "engine," I thin...
I rent a shared-hosting environment with CentOS-Bash, Apache, PHP, MySQL and a web-based IMAP email client (Roundcube) and some more tools, on which I host my personal website; I don't have Cpanel...
What is the default port number of MariaDB database server? (Remembering defaults is surprisingly hard since usually you don't need to specify them..)
Found the example below in a book teaching logical database design, but I'm stuck on how one would implement this in PostreSQL: The diagram reflects the following business rule: An instructor...
I have a large and complex PostgreSQL SELECT query that I would like to make faster. EXPLAIN suggests it should run quickly, with the worst parts being scans of a few thousand rows. When run, it do...
Flutter supports packaging a SQLite instance with a Flutter app using the Sqflite plugin. I do not like the speed of SQLite or the fact that it does not enforce column datatypes and want to use som...
Question What is the current state of the art database app? How does it compare to SQL? Can pandas be used in place of either? If not, is there something that bridges the gap between SQL and pand...
I am developing a web app that is tied to a database. My codebase is stored on a private GitLab instance. I would like to set up a workflow that would look something like this: I have a developm...
In a media manager I have database tables for files, media and collections. When a user is browsing a collection I want there to be links to see the metadata for single file media like books, movi...
I had installed Ruby. rvm install 2.6.6 I had Ruby which version was 3.0.0. I had removed it. Then, installed 2.6.6. When I try bundle install I got no error. When I tried following command...
There are a lot of articles and presentations that show little love for ORMs. This is mainly because some queries are so complex and heavy on the database that they lead to significant issues in p...
I have not used a database trigger in years in the projects of the teams I have worked in, but I have seen them being used by other teams. Back in 2009, it seemed like a heated debate, but I am wo...
In PHPMyAdmin 5.1.1 I have created a user account and a database with the same name and granted all privileges to the user on that database. I have exported the database to a backup file, deleted ...
The context A reports related process is directly reading the production operational database once about two hours. This involves reading all the data from some 70 tables which takes a couple minu...
I have to debug an error which seems to only happen with some set of data present in our PostgreSQL database. I'd like to copy said database to my local machine so I can perform tests without affe...
In some situations, could it be problematic to migrate a website's database (MySQL) from one website hosting provider to another without the information schema or with the information schema? In m...
Consider the following code: public class OnlineShoppingService { @Transactional public void cancelOrder(String id) { if (shipmentRepository.findShipmentForOrder(id) != null) { ...
I've been doing a lot of reading on implementing the repository pattern in C# projects and found controversy, or shall I say some strong criticism, made by seemingly very smart people with previous...
