Research Article
[Retracted] Optimization of Online Course Platform for Piano Preschool Education Based on Internet Cloud Computing System
| Field | Type of data | Remark |
| Id | int (11) | Primary key id | created_at | datetime | Creation time | student_id | int (11) | Student id | demonstration_detail_id | int (11)) | Specific demonstration id | homework_detail_id | int (11) | Specific job id | opern_name | varchar (16) | Score name | opern_id | int (11) | Score id | is_available | tinyint (4) | Whether to be deleted | audio_path | varchar (255) | Audio file address | algorithm_path | varchar (255) | Algorithm file address | playback_path | varchar (255) | Playback file address | recording_created_at | datetime | Record creation time | Star | mediumint (4) | Number of stars obtained | Size | decimal (4, 2) | The size of the recording file | Duration | decimal (4, 2) | Duration of recording | like_count | tinyint (4) | Likes | homework_id | int (11) | Big job id | parent_id | int (11) | Parent id | Type | tinyint (4) | Recording type | teacher_id | int (11) | Teacher id | Uuid | varchar (64) | Unique ID of iPad | Hand | tinyint (4) | Left-handed, right-handed or two-handed | is_long_shared | tinyint (4) | Long-term sharing | is_stick_top | tinyint (4) | Whether to top |
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