335544569 token unknown on select * query?


Running a query like this works:

select * from employee;

But, if you try:

select *, emp_no from EMPLOYEE;

You'll the the error:

335544569 Invalid token
SQL error code = -104
Token unknown - line 1, char 9 ,

You should never be using asterisk (*) in your queries, except for testing purposes. The order of columns in table can easily change, and columns can be added or deleted. Having explicit field list in your queries ensures your applications would:

a) keep working when fields are reordered or added
b) show an error when some of required columns is deleted

However, if you still wish to use a query like that, here's a solution:

select e.*, e.emp_no from EMPLOYEE e;


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