mysql select declare variable code example
Example 1: mysql declare variable
SET start = 1;
SET finish = 10;
SELECT * FROM places WHERE place BETWEEN start AND finish;
Example 2: define a variable in mysql from select
SELECT salary INTO @variable1 FROM employee_info WHERE emp_id = 12345678 LIMIT 1;
SELECT salary, salary_group INTO @var1, @var2 FROM employee_info WHERE emp_id = 12345678;