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      - information_schema.CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS
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      - mysql.audit_log_filter
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      - mysql.columns_priv
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      - mysql.help_category
      - mysql.help_keyword
      - mysql.help_relation
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      - mysql.proc
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      - mysql.time_zone
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      - oceanbase.DBA_OB_ACCESS_POINT
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      - oceanbase.DBA_OB_AI_MODEL_PROFILES
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      - oceanbase.DBA_OB_AI_MODELS
      - oceanbase.DBA_OB_ARCHIVE_DEST
      - oceanbase.DBA_OB_ARCHIVELOG
      - oceanbase.DBA_OB_ARCHIVELOG_PIECE_FILES
      - oceanbase.DBA_OB_ARCHIVELOG_SUMMARY
      - oceanbase.DBA_OB_AUTO_INCREMENT
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      - oceanbase.DBA_OB_BACKUP_DELETE_JOB_HISTORY
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      - oceanbase.DBA_OB_BACKUP_VALIDATE_TASK_HISTORY
      - oceanbase.DBA_OB_BALANCE_JOB_HISTORY
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      - oceanbase.DBA_OB_IMPORT_TABLE_TASK_HISTORY
      - oceanbase.DBA_OB_IMPORT_TABLE_TASKS
      - oceanbase.DBA_OB_KV_TTL_TASK_HISTORY
      - oceanbase.DBA_OB_KV_TTL_TASKS
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      - oceanbase.DBA_OB_LOB_CHECK_EXCEPTION_RESULT
      - oceanbase.DBA_OB_LOB_CHECK_TASKS
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      - oceanbase.DBA_OB_LS_ARB_REPLICA_TASKS
      - oceanbase.DBA_OB_LS_ARB_REPLICA_TASK_HISTORY
      - oceanbase.DBA_OB_LS_HISTORY
      - oceanbase.DBA_OB_LS_LOCATIONS
      - oceanbase.DBA_OB_LS_LOG_ARCHIVE_PROGRESS
      - oceanbase.DBA_OB_LS_REPLICA_TASKS
      - oceanbase.DBA_OB_LS_REPLICA_TASK_HISTORY
      - oceanbase.DBA_OB_MAJOR_COMPACTION
      - oceanbase.DBA_OB_OBJECT_BALANCE_WEIGHT
      - oceanbase.DBA_OB_OUTLINE_CONCURRENT_HISTORY
      - oceanbase.DBA_OB_OUTLINES
      - oceanbase.DBA_OB_RECOVER_TABLE_JOB_HISTORY
      - oceanbase.DBA_OB_RECOVER_TABLE_JOBS
      - oceanbase.DBA_OB_SERVICES
      - oceanbase.DBA_OB_RESTORE_HISTORY
      - oceanbase.DBA_OB_RESTORE_PROGRESS
      - oceanbase.DBA_OB_RSRC_IO_DIRECTIVES
      - oceanbase.DBA_OB_RSRC_DIRECTIVES
      - oceanbase.DBA_OB_SENSITIVE_COLUMNS
      - oceanbase.DBA_OB_SENSITIVE_RULE_PLAINACCESS_USERS
      - oceanbase.DBA_OB_SENSITIVE_RULES
      - oceanbase.DBA_OB_SEQUENCE_OBJECTS
      - oceanbase.DBA_OB_STORAGE_IO_USAGE
      - oceanbase.DBA_OB_SYS_VARIABLES
      - oceanbase.DBA_OB_SPM_EVO_RESULT
      - oceanbase.DBA_OB_TABLE_LOCATIONS
      - oceanbase.DBA_OB_TABLE_OPT_STAT_GATHER_HISTORY
      - oceanbase.DBA_OB_TABLE_STAT_STALE_INFO
      - oceanbase.DBA_OB_TABLEGROUP_PARTITIONS
      - oceanbase.DBA_OB_TABLEGROUP_SUBPARTITIONS
      - oceanbase.DBA_OB_TABLEGROUP_TABLES
      - oceanbase.DBA_OB_TABLEGROUPS
      - oceanbase.DBA_OB_TABLET_REPLICAS
      - oceanbase.DBA_OB_TABLE_SPACE_USAGE
      - oceanbase.DBA_OB_TABLET_TO_LS
      - oceanbase.DBA_OB_TASK_OPT_STAT_GATHER_HISTORY
      - oceanbase.DBA_OB_TENANT_EVENT_HISTORY
      - oceanbase.DBA_OB_TENANTS
      - oceanbase.DBA_OB_TEMP_FILES
      - oceanbase.DBA_OB_TRANSFER_PARTITION_TASKS
      - oceanbase.DBA_OB_TRANSFER_PARTITION_TASK_HISTORY
      - oceanbase.DBA_OB_TRANSFER_TASK_HISTORY
      - oceanbase.DBA_OB_TRANSFER_TASKS
      - oceanbase.DBA_OB_USER_DEFINED_RULES
      - oceanbase.DBA_OB_USERS
      - oceanbase.DBA_OB_VECTOR_INDEX_TASKS
      - oceanbase.DBA_OB_VECTOR_INDEX_TASK_HISTORY
      - oceanbase.DBA_OB_ZONE_MAJOR_COMPACTION
      - oceanbase.DBA_OBJECTS
      - oceanbase.DBA_PART_COL_STATISTICS
      - oceanbase.DBA_PART_HISTOGRAMS
      - oceanbase.DBA_PART_INDEXES
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      - oceanbase.DBA_PART_TABLES
      - oceanbase.DBA_RECYCLEBIN
      - oceanbase.DBA_RSRC_CONSUMER_GROUPS
      - oceanbase.DBA_RSRC_GROUP_MAPPINGS
      - oceanbase.DBA_RSRC_PLAN_DIRECTIVES
      - oceanbase.DBA_RSRC_PLANS
      - oceanbase.DBA_SCHEDULER_JOBS
      - oceanbase.DBA_SCHEDULER_JOB_RUN_DETAILS
      - oceanbase.DBA_SCHEDULER_WINDOWS
      - oceanbase.DBA_SEQUENCES
      - oceanbase.DBA_SQL_MANAGEMENT_CONFIG
      - oceanbase.DBA_SQL_PLAN_BASELINES
      - oceanbase.DBA_SUBPART_COL_STATISTICS
      - oceanbase.DBA_SUBPART_HISTOGRAMS
      - oceanbase.DBA_SUBPART_KEY_COLUMNS
      - oceanbase.DBA_SUBPARTITION_TEMPLATES
      - oceanbase.DBA_TAB_COL_STATISTICS
      - oceanbase.DBA_TAB_HISTOGRAMS
      - oceanbase.DBA_TAB_MODIFICATIONS
      - oceanbase.DBA_TAB_PARTITIONS
      - oceanbase.DBA_TAB_STATISTICS
      - oceanbase.DBA_TAB_STATS_HISTORY
      - oceanbase.DBA_TAB_SUBPARTITIONS
      - oceanbase.DBA_TABLES
      - oceanbase.DBA_OB_TENANT_FLASHBACK_LOG_SCN
      - oceanbase.DBA_OB_TTL_TASKS
      - oceanbase.DBA_OB_TTL_TASK_HISTORY
      - oceanbase.DBA_WR_ACTIVE_SESSION_HISTORY
      - oceanbase.DBA_WR_CONTROL
      - oceanbase.DBA_WR_EVENT_NAME
      - oceanbase.DBA_WR_RES_MGR_SYSSTAT
      - oceanbase.DBA_WR_SNAPSHOT
      - oceanbase.DBA_WR_SQL_PLAN
      - oceanbase.DBA_WR_SQLSTAT
      - oceanbase.DBA_WR_SQLTEXT
      - oceanbase.DBA_WR_STATNAME
      - oceanbase.DBA_WR_SYS_TIME_MODEL
      - oceanbase.DBA_WR_SYSSTAT
      - oceanbase.DBA_WR_SYSTEM_EVENT
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mysql.help_category

更新时间：2026-07-15 15:16:39

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说明

该视图从 V1.4 版本开始引入。

功能描述

与其他三个表 mysql.help_relation、mysql.help_topic、mysql.help_keyword 合作生成 help 命令。

字段说明

字段名称	类型	是否可以为 NULL	描述
help_category_id	bigint(20)	NO	类目 ID
name	varchar(64)	NO	类目名
parent_category_id	bigint(20)	YES	父类目 ID
url	varchar(65535)	NO	url 地址

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