union all mysql code example
Example 1: mysql union
SELECT supplier_id, supplier_name
FROM suppliers
WHERE supplier_id <= 500
UNION
SELECT company_id, company_name
FROM companies
WHERE company_name = 'Apple'
ORDER BY 2;
Example 2: sql server union all example
SELECT expression1, expression2, ... expression_n
FROM tables
[WHERE conditions]
UNION ALL
SELECT expression1, expression2, ... expression_n
FROM tables
[WHERE conditions];
Example 3: union all in mysql
SELECT City FROM Customers
UNION ALL
SELECT City FROM Suppliers
ORDER BY City;