Expression ＃1 of ORDER BY clause is not in SELECT list, references column ‘d.dept_ no‘ which is not i

problem ："Expression #1 of ORDER BY clause is not in SELECT list, references column 'd.dept_no' which is not in SELECT list; this is incompatible with DISTINCT"

Add distinct Report a mistake later

reason ： When using grouping function or window function ,order by The following field name should be the same as select The field names after are consistent

solve ： In this case select The last field is named de.dept, and order by The latter is d.dept, Need to put d.dept Change to de.dept