select a,* from XXX 报错

[kevin.tan tann]

mysql> SELECT LENGTH(CAST(emp_no AS CHAR)) as emp_no_length,* FROM salaries limit 10;
运行时报错
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '* FROM salaries limit 10' at line 1
但
mysql> SELECT LENGTH(CAST(emp_no AS CHAR)) as emp_no_length,salaried.* FROM salaries limit 10;
运行正常