35 若欲列出資料庫中員工資料表(Employee)內所有不同職級(Rank)名稱,下列 SQL 敘述何者正確?
(A) SELECT Rank (DIFFERENT) FROM Employee;
(B) SELECT Rank (DISTINCT) FROM Employee;
(C) SELECT DIFFERENT Rank FROM Employee;
(D) SELECT DISTINCT Rank FROM Employee;

答案:登入後查看
統計: A(14), B(38), C(12), D(108), E(0) #2053076

詳解 (共 2 筆)

#5376077
SELECT DISTINCT (SQL...
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#3677854
DISTINCT: 選出該表格的某欄位中...
(共 29 字,隱藏中)
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