短語詞組短語distinct E from 與distinct t from 種類不同;與select distinct name from person 檢索部分信息select distinct english from student 過濾表中重復(fù)數(shù)據(jù)Select distinct class from student 例查詢學(xué)校共有哪幾個班SELECT DISTINCT state FROM president 從而不能省略SELECT DISTINCT id FROM products 查詢一列返回不同的行is distinct from 完全不同be e distinct from 與…不同 返回 distinct from