sona11

sona11

What are TRC and DRC in relation to DBMS?

What is the difference between tuple relational calculus (TRC) and domain relational calculus (DRC)? What distinguishes them from relational algebra?
I am new to the DBMS field. However, I have learned the fundamentals of relational algebra from here.

Where Next?

Popular Frontend topics Top

davearonson
I’m unit-testing some JS, with Jasmine, and I’d like to check our coverage. We’re not using any front-end framework, nor much JS, so no ...
New
axelson
In Elixir I love to use the library GitHub - sasa1977/boundary: Manage and restrain cross-module dependencies in Elixir projects to enfor...
New
david-j-m
Hi I have a gallery site which displays paintings according to selected category (oils, water-color, etc.) “on:click” event. When this e...
/js
New
Fl4m3Ph03n1x
Background I have a Phoenix application, where all pages (expect the login page) have a menu at the top. This menu will therefore only a...
New
Fl4m3Ph03n1x
Background I have a custom component in my LiveView, which is basically a group of checkboxes. I want to add a new attribute to my custo...
New
gameengineer
We are developing on Samsung Tab Active 4 Pro using Android Studio, kotlin and java. We are getting what we think are app deadlocks. The ...
New
Julien0577
Hi all, Anybody knows how to do this menu animation? (from BBVA APP, they have the same for both android and iOS app). Is it custom?...
New
wilsoc31
First time building an app. It will run for Android and also for iPhone 15 but will not for iPod. Not sure why or where to even begin. ...
New
Clintonsuck
Hello, I am new and trying to build my first app. So far, everything was going okay, but now I’m stuck and don’t know how to proceed. May...
New
ounce591
I am currently designing the navbar of a workout tracking app written using React Native. The navbar has three buttons: Splits/Plans ...
New

Other popular topics Top

DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
AstonJ
You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...
New
Rainer
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
New
AstonJ
poll poll Be sure to check out @Dusty’s article posted here: An Introduction to Alternative Keyboard Layouts It’s one of the best write-...
New
AstonJ
I’ve been hearing quite a lot of comments relating to the sound of a keyboard, with one of the most desirable of these called ‘thock’, he...
New
dimitarvp
Small essay with thoughts on macOS vs. Linux: I know @Exadra37 is just waiting around the corner to scream at me “I TOLD YOU SO!!!” but I...
New
PragmaticBookshelf
Build highly interactive applications without ever leaving Elixir, the way the experts do. Let LiveView take care of performance, scalabi...
New
AstonJ
Continuing the discussion from Thinking about learning Crystal, let’s discuss - I was wondering which languages don’t GC - maybe we can c...
New
Help
I am trying to crate a game for the Nintendo switch, I wanted to use Java as I am comfortable with that programming language. Can you use...
New
New