A. SELECT @courseid = 課程號(hào) FROM XSB WHERE 課程名 = ’計(jì)算機(jī)基礎(chǔ)’
B. SELECT 課程號(hào) AS @courseid FROM XSB WHERE課程名= ’計(jì)算機(jī)基礎(chǔ)’
C. SELECT @courseid = (SELECT 課程號(hào) FROM XSB WHERE課程名 = ’計(jì)算機(jī)基礎(chǔ)’)
D. SET @courseid = (SELECT 課程號(hào) FROM XSB WHERE課程名= ’計(jì)算機(jī)基礎(chǔ)’)