NoSQL database systems code example
Example 1: no sql
TLDR: NoSQL databases (aka "not only SQL") are non tabular, and store data differently than relational tables.
NoSQL databases come in a variety of types based on their data model. The main types are document, key-value,
wide-column, and graph. They provide flexible schemas and scale easily with large amounts of data and high user loads.
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Example 2: no database schema
DATABASE SCHEMA: is a chart that
shows all the tables and how they are
related to each other.
• If there is no schema:
1. Oracle ===> SELECT table_name FROM user_tables;
2. MySQL ===> show tables;