10/23/2023 0 Comments Case sql postgresThis type of relationship between different tables allows queries to be run across multiple tables at once. Each record in a table can be uniquely identified using an Attribute that acts as a Primary Key and a relationship can be established between two different tables using a Foreign Key. Image Source: Wikipediaĭata in a Relational Database is queried using Structured Query Language (SQL). Each row is referred to as a Record or Tuple, and each column is referred to as an Attribute. Each table in the Relational Database is referred to as a Relation. What is Relational Database Management System?Ī Relational Database Management System (RDMS) can be defined as a set of programs that allow you to interact with Relational Databases and make changes to them as required.Ī Relational Database refers to a database that stores data in a Structured format i.e., in the form of rows and columns. This article will provide you with a simplified explanation of what a Relational Database Management System (RDBMS) is, why PostgreSQL is becoming the preferred RDBMS for most organizations, what a Postgres Case statement is, and how you can use it for your business and data requirements.
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