What are steps to improve sql query performance, difference between sql functions and stored procedures when to use which ? what are index and what are views and their use.

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To improve SQL query performance, optimize queries, use indexes, and consider using stored procedures. SQL functions and stored procedures have different use cases. Indexes improve query performance by allowing faster data retrieval. Views are virtual tables that simplify complex queries.

Optimize SQL queries by avoiding unnecessary joins, reducing the number of columns retrieved, and using appropriate filters
Use indexes to improve query performance by creating indexes on frequently queried columns
Stored procedures are precompiled SQL statements that can be reused and provide better security and performance
SQL functions are reusable code blocks that return a single value and can be used within queries
Views are virtual tables that are created based on the result of a query and simplify complex queries by providing a simpler interface
Consider using stored procedures for complex business logic and SQL functions for calculations or data transformations

What are steps to improve sql query performance, difference between sql functions and stored procedures when to use which ? what are index and what are views and their use.

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