Could not fetch row with primary-key item_mock_c3_000.

Could not fetch row with primary-key item_mock_c2_007.

id institution_id name grade head_teacher_id student_count status created_at updated_at
class_e3f6ab3f bc_ai_lab 全链路测班 一年级 NULL 0 active 2026-06-08 09:33:34 2026-06-08 09:33:34 Edit Delete
100 bc_ai_lab 测试班级-A 一年级 teacher_06e0dc99 0 active 2026-06-09 01:21:38 2026-06-09 01:21:38 Edit Delete
101 bc_ai_lab 测试班级-B 二年级 teacher_06e0dc99 0 active 2026-06-09 01:21:38 2026-06-09 01:21:38 Edit Delete