蔭試圖讓我的代碼簡單,就是有這個如何讓這段代碼更簡單?
INSERT INTO course (code, name, credits) VALUES
('WSD','Web systems Development','75');
INSERT INTO course (code, name, credits) VALUES
('DDM','Database Design & Management','100');
INSERT INTO course (code, name, credits) VALUES
('NSF','Network security & forensics','75');
,這有什麼區別?
INSERT INTO course (code, name, credits) VALUES
('WSD','Web systems Development','75');
('DDM','Database Design & Management','100');
('NSF','Network security & forensics','75');
它會產生相同的結果嗎?
第二次查詢將無法正常工作。 –
測試一下,找出答案? –