get table relations

table-relations.sql

SELECT
    constraint_schema as db,
CONCAT( table_name, '.', column_name, ' -> ', referenced_table_name, '.', referenced_column_name ) AS relationship 
FROM
    information_schema.key_column_usage 
WHERE
    referenced_table_name = 'TableName'
ORDER BY
    constraint_schema, table_name, column_name;