คลาสใดมี ERP W 222?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which Class has an ERP W of 222?It is not neccessary to use all the tables.
 table_38063:  "Class" [ text] 
SELECT "Class" FROM table_38063 WHERE "ERP W" = '222'