Configuring caching in MySQL

Configuring caching in MySQL can significantly enhance database performance by reducing query execution times. Below are the steps to configure caching in MySQL:

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1. Enable Query Cache

The query cache is used to store the results of SELECT queries. If the same query is executed again, MySQL can return the cached result without re-executing the query.

Steps:

1. Check if the query cache is enabled:

   SHOW VARIABLES LIKE 'query_cache%';

2. Enable and configure query cache in the MySQL configuration file (my.cnf or my.ini):

   [mysqld] query_cache_type = 1 # 1 = ON, 2 = DEMAND (only cache queries with SQL_CACHE) query_cache_size = 128M # Set the size of the query cache query_cache_limit = 2M # Maximum size of individual query results to cache

3. Restart the MySQL service to apply changes: