Top "Relational-database" questions

A relational database is a database consisting of relation variables (which are also called *relvars*, *R-tables* or just *tables*). The definition, manipulation and integrity rules of relational databases are based on relational operations equivalent to or similar to the Relational Algebra and Calculus.

Use cases for NoSQL

NoSQL has been getting a lot of attention in our industry recently. I'm really interested in what peoples thoughts are …

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Postgresql delete multiple rows from multiple tables

Consider 2 or more tables: users (id, firstname, lastname) orders (orderid, userid, orderdate, total) I wish to delete all users and …

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Can't get Laravel associate to work

I'm not quite sure if I understand the associate method in Laravel. I understand the idea, but I can't seem …

php laravel relational-database eloquent relationship
Database design for user settings

Which of the following options, if any, is considered best practice when designing a table used to store user settings? (…

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How to store a one to many relation in my sql database ? (MySQL)

I'm making a website and I need to store a random number of data in my database. for example: User …

mysql sql database join relational-database
Decomposition into Third Normal Form (3NF)

Scheme (R) = (A,B,C,D,E,F,G,H) Function Dependencies (F) = {A->CGH, AD->C, DE-&…

database relational-database
non trivial functional dependency in DBMS

pls help me to find out non trivial functional dependency in a following table? A. B. C 1 1 1 1 1 0 2 3 2 2 3 2 and also explain …

database relational-database functional-dependencies
Designing an E-Commerce Database - MySQL

I'm doing an e-commerce project and am confused about the database design for storing products. There are 3 ways I've speculated …

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Are relational databases a poor fit for Node.js?

Recently I've been playing around with Node.js a little bit. In my particular case I wound up using MongoDB, …

node.js relational-database
One-to-Many relationship in MySQL - how to build model?

I have got two tables: 1) Area 2) Map Each Area shall have at least 1 Map, but can also have more than …

mysql relational-database