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OceanBase Databasemysql.help_category is used to generate the HELP command in coordination with the following three tables: mysql.help_relation, mysql.help_topic, and mysql.help_keyword.
mysql.help_relation
mysql.help_topic
mysql.help_keyword
| Field | Type | Nullable | Description |
|---|---|---|---|
| help_category_id | bigint(20) | NO | The category ID. |
| name | varchar(64) | NO | The category name. |
| parent_category_id | bigint(20) | YES | The ID of the parent category. |
| url | varchar(65535) | NO | The URL address. |
