1. Use Proper Indexing: Indexing is an effective way to improve the performance of your query in MySQL. By adding indexes to your tables, you can reduce the time it takes to access the data and make your queries run faster. For example:
CREATE INDEX idx_name ON table_name (column_name);
2. Limit the Number of Rows Returned: When a query is executed, it returns all the rows that match the criteria specified in the query. To optimize the query, you can limit the number of rows returned by using the LIMIT clause. For example:
SELECT * FROM table_name LIMIT 10;
3. Use JOINs: Joins are used to combine data from multiple tables. By using JOINs, you can reduce the number of queries required to retrieve the data you need. For example:
SELECT t1.column_name, t2.column_name
FROM table1 t1
INNER JOIN table2 t2
ON t1.column_name = t2.column_name;
4. Use EXPLAIN Command: EXPLAIN command provides information about how MySQL executes a query. It shows the query execution plan and helps you identify the areas that need to be optimized. For example:
EXPLAIN SELECT * FROM table_name;