# schedule_history

## Description

<details>
<summary><strong>Table Definition</strong></summary>

```sql
CREATE TABLE `schedule_history` (
  `schedule_history_id` mediumint unsigned NOT NULL AUTO_INCREMENT,
  `schedule_id` mediumint unsigned NOT NULL,
  `schedule_name` varchar(180) COLLATE utf8mb4_general_ci NOT NULL,
  `target_type` varchar(180) COLLATE utf8mb4_general_ci DEFAULT NULL,
  `target_id` varchar(180) COLLATE utf8mb4_general_ci NOT NULL,
  `conditions` json DEFAULT NULL,
  `created_by` varchar(180) COLLATE utf8mb4_general_ci NOT NULL,
  `created_at` datetime NOT NULL,
  `last_modified_by` varchar(180) COLLATE utf8mb4_general_ci NOT NULL,
  `last_modified` datetime NOT NULL,
  PRIMARY KEY (`schedule_history_id`),
  KEY `fk_schedule_id` (`schedule_id`),
  CONSTRAINT `fk_schedule_id` FOREIGN KEY (`schedule_id`) REFERENCES `schedule` (`schedule_id`) ON DELETE RESTRICT ON UPDATE RESTRICT
) ENGINE=InnoDB AUTO_INCREMENT=[Redacted by tbls] DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
```

</details>

## Columns

| Name                | Type               | Default | Nullable | Extra Definition | Children | Parents                 | Comment |
| ------------------- | ------------------ | ------- | -------- | ---------------- | -------- | ----------------------- | ------- |
| conditions          | json               |         | true     |                  |          |                         |         |
| created_at          | datetime           |         | false    |                  |          |                         |         |
| created_by          | varchar(180)       |         | false    |                  |          |                         |         |
| last_modified       | datetime           |         | false    |                  |          |                         |         |
| last_modified_by    | varchar(180)       |         | false    |                  |          |                         |         |
| schedule_history_id | mediumint unsigned |         | false    | auto_increment   |          |                         |         |
| schedule_id         | mediumint unsigned |         | false    |                  |          | [schedule](schedule.md) |         |
| schedule_name       | varchar(180)       |         | false    |                  |          |                         |         |
| target_id           | varchar(180)       |         | false    |                  |          |                         |         |
| target_type         | varchar(180)       |         | true     |                  |          |                         |         |

## Constraints

| Name           | Type        | Definition                                                  |
| -------------- | ----------- | ----------------------------------------------------------- |
| PRIMARY        | PRIMARY KEY | PRIMARY KEY (schedule_history_id)                           |
| fk_schedule_id | FOREIGN KEY | FOREIGN KEY (schedule_id) REFERENCES schedule (schedule_id) |

## Indexes

| Name           | Definition                                    |
| -------------- | --------------------------------------------- |
| PRIMARY        | PRIMARY KEY (schedule_history_id) USING BTREE |
| fk_schedule_id | KEY fk_schedule_id (schedule_id) USING BTREE  |

## Relations

![er](schedule_history.svg)

---

> Generated by [tbls](https://github.com/k1LoW/tbls)