
In this article, we will understand the major differences between SQL and NoSQL database languages. We will also learn about both languages and their pros and cons. You need to read the complete article to get a better understanding of the two major database languages (SQL vs NoSQL)
| SQL Vs. NoSQL | |
| SQL | NoSQL |
| It stands for Structured Query Language. | It stands for Not Only Structured Query Language. |
| It uses a Relational Database Management System (RDBMS). | It works on a Non-Relational Database Management System. |
| It is a more structured and rigid database. | It is a flexible and adaptive database. |
| It stores the data within the rows and columns of a table. | It can store data in documents and in various forms, such as key-value pairs, documents, graphs, etc. |
| It follows the ACID property. It stands for Atomicity, Consistency, Isolation, and Durability in the transactional management process. | It does not work on the ACID property. |
| It supports various queries, such as JOIN. | It does not support Join and other complicated queries. |
| It uses a Normalized data structure. | It uses a denormalized data structure. |
| It implements vertical scaling to handle large sets of data. | It implements horizontal scaling to handle complex data. |
| It is also known as a database because it displays data in the form of tables. | It is known as a no-table database. |
| They work best in the case of complex queries. | They cannot handle complex queries as well as traditional SQL. |
| They are not suited for hierarchical data storage. | They are suited for hierarchical data storage. |
| MySQL, Oracle, SQL Server, Microsoft SQL Server, PostgreSQL, etc, are some examples of SQL databases. | MongoDB, Amazon DyanamoDB, Neo4j, Couchbase, Redis, HBase, etc, are some examples of NoSQL databases. |
| Important SQL Commands | |
| SQL Command | Description |
| SELECT | Retrieves data from one or more tables. |
| INSERT INTO | Adds new rows into a table. |
| UPDATE | Modifies existing data in a table. |
| DELETE FROM | Removes rows from a table based on a condition. |
| CREATE TABLE | Creates a new table with specified columns and data types. |
| ALTER TABLE | Modifies an existing table (e.g., adding, modifying, or dropping columns). |
| DROP TABLE | Deletes an existing table and all its data. |
| CREATE INDEX | Creates an index on one or more table columns, improving query performance. |
| DROP INDEX | Removes an existing index from a table. |
| JOIN | combines rows from two or more tables based on a related column. |
| UNION | Combines the result sets of two or more SELECT statements. |
| GROUP BY | Group rows that have the same values into aggregated data, like sum or count. |
| HAVING | Filters the results of a GROUP BY clause based on an aggregate property. |
| ORDER BY | Sorts the result set of a query by one or more columns. |
| DISTINCT | Retrieves unique values from a specified column in a table. |
| WHERE | Filters records based on specified conditions. |
| BETWEEN | Select values within a specified range. |
| LIKE | Searches for a specified pattern in a column. |
| IN | Specifies multiple values for a column. |
| NULL | Tests for NULL values in a column. |