How to use like query with joins in mysql?

Member

by aubrey , in category: MySQL , 2 months ago

How to use like query with joins in mysql?

Facebook Twitter LinkedIn Telegram Whatsapp

1 answer

Member

by lizzie , 2 months ago

@aubrey 

To use the LIKE query with joins in MySQL, you can use the following syntax:

1
2
3
4
SELECT column_name
FROM table1
JOIN table2 ON table1.column_name = table2.column_name
WHERE column_name LIKE 'pattern';


Here's a step-by-step explanation of the query:

  1. Specify the columns you want to select from the tables using the SELECT statement.
  2. Use the JOIN keyword to merge the necessary tables based on the specified join condition (table1.column_name = table2.column_name in this example).
  3. Add the WHERE clause to filter the result based on a condition. Use the LIKE keyword with the desired pattern enclosed in single quotes ('pattern').


For example, let's assume you have two tables: users and orders. To find all orders made by users whose name starts with 'John', you can use the following query:

1
2
3
4
SELECT orders.order_id, users.name
FROM orders
JOIN users ON orders.user_id = users.user_id
WHERE users.name LIKE 'John%';


In this example, the query joins the orders and users tables on the user_id field and retrieves the order_id from the orders table and name from the users table. The WHERE clause filters the results to only include users whose name starts with 'John'. The % symbol is a wildcard that matches any character or a sequence of characters.