We selected the database based on specific use cases in the first part. This section will be more interesting where we will discuss SQL and No-SQL databases, and what are the factors that influence their selection. SQL Database: SQL (Structured Query Language) databases are relational database management systems (RDBMS) that use a structured query language (SQL) for defining, querying, and manipulating data. They organize data into tables with rows and columns, enforcing a predefined schema. SQL databases are characterized by their adherence to ACID (Atomicity, Consistency, Isolation, Durability) properties, making them suitable for applications requiring strict data integrity and complex transactions. No-SQL Database: NoSQL (Not Only SQL) databases are a broad category of database management systems that provide mechanisms for storage and retrieval of data modeled in formats other than traditional tabular relations used in relational databases. NoSQL databases offer flexi...