Query Taking time to execute

Question

I have a query that fetches data from two tables but it takes too much time to fetch data. The browser loads and shows nothing as a result. When I run this query in the MySQL database, it takes a long time to execute.

SELECT 
    * 
FROM 
    library_new_item AS library 
    LEFT JOIN library_items_barcode AS boorcode ON library.lib_item_id=boorcode.lib_items_id 
ORDER BY 
    library.lib_item_id ASC 
LIMIT 100

Answer 1

Unless you post your DB structure, or share the Explain output or the error message, it'd be impossible for us to answer. But if you want us to take a shot in the dark, this could possibly be the issue:

on library.lib_ item_id = boorcode.lib_ items_id