What is Query Optimization in DBMS? | Database Management System | Indexing in DBMS | SQL | #shorts

Wouldn’t it be frustrating to beat around the bush to find a piece of information? That is where query optimisation comes in. Here’s a quick byte where we summarise how query optimisation works in Database Management System.

What is Query Optimisation?
Query optimisation is the process of improving the performance and efficiency of database queries. It involves analysing query execution plans, indexing strategies, and database statistics to minimise query execution time and resource usage, resulting in faster and more efficient retrieval of data.

What is DBMS?
DBMS stands for Database Management System. It is software that allows users to create, manage, and access databases. DBMS provides a set of tools and functions for storing, organising, retrieving, and manipulating data in a structured and efficient manner. It helps to ensure data consistency, security, and integrity.

What is SQL?
SQL stands for Structured Query Language, and it is a standard language used to manage and manipulate relational databases. SQL allows users to create, modify, and query databases, as well as to extract and manipulate data within them.
SQL is used to perform a wide range of tasks, such as creating and modifying database schema, inserting, updating and deleting data, and querying the database to retrieve information.

What are SQL Subqueries?
Subqueries in SQL are queries that are nested within another query. They allow for more complex queries by enabling a query to reference the results of another query as a temporary table. This can be useful for filtering, sorting, and aggregating data in more complex ways than a single query can achieve.

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[hinduscience]

you explained a 10-minute video in1 min. That's impressive. Thankyou