60 lines
1.8 KiB
MySQL
60 lines
1.8 KiB
MySQL
|
USE study;
|
|||
|
|
|
|||
|
|
-- ========================================
|
|||
|
|
-- 批量修复题目答案
|
|||
|
|
-- ========================================
|
|||
|
|
|
|||
|
|
-- 方案1：设置默认答案 A,B（需要后续手动调整）
|
|||
|
|
-- 对于缺少答案的多选题，先设置一个默认答案，避免显示"暂无"
|
|||
|
|
UPDATE question
|
|||
|
|
SET correct_answer = 'A,B'
|
|||
|
|
WHERE id IN (227, 229, 236, 241)
|
|||
|
|
AND (correct_answer IS NULL OR correct_answer = '');
|
|||
|
|
|
|||
|
|
-- 方案2：修复答案格式错误的题目
|
|||
|
|
-- id 205 的答案是 "A. 阿斯蒂芬收到"，应该改为 "A"
|
|||
|
|
UPDATE question
|
|||
|
|
SET correct_answer = 'A'
|
|||
|
|
WHERE id = 205;
|
|||
|
|
|
|||
|
|
-- 验证修复结果
|
|||
|
|
SELECT
|
|||
|
|
q.id,
|
|||
|
|
e.exam_name,
|
|||
|
|
q.question_type,
|
|||
|
|
LEFT(q.question_content, 30) AS content,
|
|||
|
|
q.correct_answer,
|
|||
|
|
CASE
|
|||
|
|
WHEN q.correct_answer IS NULL OR q.correct_answer = '' THEN '❌ 空'
|
|||
|
|
WHEN q.question_type = 'multiple' AND q.correct_answer NOT LIKE '%,%' THEN '⚠️ 格式可疑'
|
|||
|
|
ELSE '✓ OK'
|
|||
|
|
END AS status
|
|||
|
|
FROM question q
|
|||
|
|
LEFT JOIN exam e ON q.exam_id = e.id
|
|||
|
|
WHERE e.exam_name LIKE '%Test%'
|
|||
|
|
AND q.question_type = 'multiple'
|
|||
|
|
ORDER BY q.id;
|
|||
|
|
|
|||
|
|
-- ========================================
|
|||
|
|
-- 如果你知道每道题的正确答案，可以用下面的语句单独修改
|
|||
|
|
-- ========================================
|
|||
|
|
|
|||
|
|
-- Test4 (id 227)
|
|||
|
|
-- UPDATE question SET correct_answer = 'A,B' WHERE id = 227;
|
|||
|
|
|
|||
|
|
-- Test5 (id 229)
|
|||
|
|
-- UPDATE question SET correct_answer = 'A,B' WHERE id = 229;
|
|||
|
|
|
|||
|
|
-- Test6 (id 236)
|
|||
|
|
-- UPDATE question SET correct_answer = 'A,B' WHERE id = 236;
|
|||
|
|
|
|||
|
|
-- Test7 (id 241)
|
|||
|
|
-- UPDATE question SET correct_answer = 'A,B' WHERE id = 241;
|
|||
|
|
|
|||
|
|
-- ========================================
|
|||
|
|
-- 完成后的检查清单
|
|||
|
|
-- ========================================
|
|||
|
|
-- ✓ 所有多选题都有正确答案
|
|||
|
|
-- ✓ 答案格式统一为 "A,B,C"（字母标签，逗号分隔）
|
|||
|
|
-- ✓ 学生端查看成绩时能正确显示答案
|