23. 下列四個 SQL 指令,何者錯誤?
(A) SELECT * FROM Table1;
(B) DELETE FROM Table1 WHERE fa=1;
(C) UPDATE Table1
LET fb=fb*2 WHERE fa=1;
(D) INSERT INTO Table1 (fa,fb,fc)
VALUES (1,20,30);。
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統計: A(13), B(20), C(70), D(19), E(0) #1991264
統計: A(13), B(20), C(70), D(19), E(0) #1991264