“djh”
2025-07-01 99132a43bf344f2aafdd9894b0762d2eedd9767b
1
2
3
4
5
ALTER TABLE `train_exam`.`ex_student_answer`
MODIFY COLUMN `answer` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL COMMENT '答案';
 
ALTER TABLE `train_exam`.`ex_exercise_answer`
MODIFY COLUMN `answer` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci  NULL COMMENT '答案';