query: SELECT * FROM employees WHERE hire_date  <  '2002-06-21'
question: displaying all a detail Employee a table that employee as have been hired them 2002-06-.
query_toks: SELECT * FROM employees WHERE hire_date < '2002-06-21 '
query_toks_no_value: select * from employees where hire_date < value
question_toks: displaying all a detail Employee a table that employee as have been hired them 2002-06-.