Check the size of your database

check-db-size.sql

SELECT 
    table_name AS `Table`,
    table_rows AS `Records`,
    ROUND((data_length + index_length) / 1024 / 1024, 2) AS `Size (MB)`
FROM 
    information_schema.tables
WHERE 
    table_schema = 'your_db_table'
ORDER BY 
    `Size (MB)` DESC;