评测信息
运行ID: 3293
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELCT SUM(Ccredit) AS 'SUM'
FORM SC,Course
WHERE Sno='201215121' AND S' at line 1
FORM SC,Course
WHERE Sno='201215121' AND S' at line 1