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Catalog Views / Data Dictionary Views

The data dictionary views, also known as catalog views, let you monitor the state of the database in real time:

Shortcuts to View Names

If you know the name of the view you want, select its abbreviation. Otherwise, scroll down to see the entire list.

List of Data Dictionary Views (A-Z)

DBA_2PC_NEIGHBORS: Syntax
DBA_2PC_PENDING: Syntax
DBA_ADVISOR_ACTIONS: Syntax
DBA_ADVISOR_COMMANDS: Syntax
DBA_ADVISOR_DEFINITIONS: Syntax
DBA_ADVISOR_DEF_PARAMETERS: Syntax
DBA_ADVISOR_FINDINGS: Syntax
DBA_ADVISOR_JOURNAL: Syntax
DBA_ADVISOR_LOG: Syntax
DBA_ADVISOR_OBJECTS: Syntax
DBA_ADVISOR_OBJECT_TYPES: Syntax
DBA_ADVISOR_PARAMETERS: Syntax
DBA_ADVISOR_RATIONALE: Syntax
DBA_ADVISOR_RECOMMENDATIONS: Syntax
DBA_ADVISOR_SQLA_REC_SUM: Syntax
DBA_ADVISOR_SQLA_WK_MAP: Syntax
DBA_ADVISOR_SQLA_WK_STMTS: Syntax
DBA_ADVISOR_SQLW_JOURNAL: Syntax
DBA_ADVISOR_SQLW_PARAMETERS: Syntax
DBA_ADVISOR_SQLW_STMTS: Syntax
DBA_ADVISOR_SQLW_SUM: Syntax
DBA_ADVISOR_SQLW_TABLES: Syntax
DBA_ADVISOR_SQLW_TEMPLATES: Syntax
DBA_ADVISOR_TASKS: Syntax
DBA_ADVISOR_TEMPLATES: Syntax
DBA_ADVISOR_USAGE: Syntax
DBA_ALERT_HISTORY: Syntax
DBA_ALL_TABLES: Syntax
DBA_APPLICATION_ROLES: Syntax
DBA_APPLY: Syntax
DBA_APPLY_CONFLICT_COLUMNS: Syntax
DBA_APPLY_DML_HANDLERS: Syntax
DBA_APPLY_ENQUEUE: Syntax
DBA_APPLY_ERROR: Syntax
DBA_APPLY_EXECUTE: Syntax
DBA_APPLY_INSTANTIATED_GLOBAL: Syntax
DBA_APPLY_INSTANTIATED_OBJECTS: Syntax
DBA_APPLY_INSTANTIATED_SCHEMAS: Syntax
DBA_APPLY_KEY_COLUMNS: Syntax
DBA_APPLY_OBJECT_DEPENDENCIES: Syntax
DBA_APPLY_PARAMETERS: Syntax
DBA_APPLY_PROGRESS: Syntax
DBA_APPLY_SPILL_TXN: Syntax
DBA_APPLY_TABLE_COLUMNS: Syntax
DBA_APPLY_VALUE_DEPENDENCIES: Syntax
DBA_AQ_AGENTS: Syntax
DBA_AQ_AGENT_PRIVS: Syntax
DBA_ASSOCIATIONS: Syntax
DBA_ATTRIBUTE_TRANSFORMATIONS: Syntax
DBA_AUDIT_EXISTS: Syntax
DBA_AUDIT_OBJECT: Syntax
DBA_AUDIT_POLICIES: Syntax
DBA_AUDIT_POLICY_COLUMNS: Syntax
DBA_AUDIT_SESSION: Syntax
DBA_AUDIT_STATEMENT: Syntax
DBA_AUDIT_TRAIL: Syntax
DBA_AUTO_SEGADV_CTL: Syntax
DBA_AUTO_SEGADV_SUMMARY: Syntax
DBA_AWS: Syntax
DBA_AW_PS: Syntax
DBA_BASE_TABLE_MVIEWS: Syntax
DBA_BLOCKERS: Syntax
DBA_CAPTURE: Syntax
DBA_CAPTURE_EXTRA_ATTRIBUTES: Syntax
DBA_CAPTURE_PARAMETERS: Syntax
DBA_CAPTURE_PREPARED_DATABASE: Syntax
DBA_CAPTURE_PREPARED_SCHEMAS: Syntax
DBA_CAPTURE_PREPARED_TABLES: Syntax
DBA_CATALOG: Syntax
DBA_CHANGE_NOTIFICATION_REGS: Syntax
DBA_CLUSTERS: Syntax
DBA_CLUSTER_HASH_EXPRESSIONS: Syntax
DBA_CLU_COLUMNS: Syntax
DBA_COLL_TYPES: Syntax
DBA_COL_COMMENTS: Syntax
DBA_COL_PRIVS: Syntax
DBA_COMMON_AUDIT_TRAIL: Syntax
DBA_CONNECT_ROLE_GRANTEES: Syntax
DBA_CONSTRAINTS: Syntax
DBA_CONS_OBJ_COLUMNS: Syntax
DBA_CONTEXT: Syntax
DBA_CPU_USAGE_STATISTICS: Syntax
DBA_DATAPUMP_JOBS: Syntax
DBA_DATAPUMP_SESSIONS: Syntax
DBA_DATA_FILES: Syntax
DBA_DB_LINKS: Syntax
DBA_DDL_LOCKS: Syntax
DBA_DEPENDENCIES: Syntax
DBA_DIMENSIONS: Syntax
DBA_DIM_ATTRIBUTES: Syntax
DBA_DIM_CHILD_OF: Syntax
DBA_DIM_HIERARCHIES: Syntax
DBA_DIM_JOIN_KEY: Syntax
DBA_DIM_LEVELS: Syntax
DBA_DIM_LEVEL_KEY: Syntax
DBA_DIRECTORIES: Syntax
DBA_DML_LOCKS: Syntax
DBA_DMT_FREE_SPACE: Syntax
DBA_DMT_USED_EXTENTS: Syntax
DBA_ENABLED_AGGREGATIONS: Syntax
DBA_ENABLED_TRACES: Syntax
DBA_ENCRYPTED_COLUMNS: Syntax
DBA_EPG_DAD_AUTHORIZATION: Syntax
DBA_ERRORS: Syntax
DBA_EVALUATION_CONTEXTS: Syntax
DBA_EVALUATION_CONTEXT_TABLES: Syntax
DBA_EVALUATION_CONTEXT_VARS: Syntax
DBA_EXP_FILES: Syntax
DBA_EXP_OBJECTS: Syntax
DBA_EXP_VERSION: Syntax
DBA_EXTENTS: Syntax
DBA_EXTERNAL_LOCATIONS: Syntax
DBA_EXTERNAL_TABLES: Syntax
DBA_FEATURE_USAGE_STATISTICS: Syntax
DBA_FGA_AUDIT_TRAIL: Syntax
DBA_FILE_GROUPS: Syntax
DBA_FILE_GROUP_EXPORT_INFO: Syntax
DBA_FILE_GROUP_FILES: Syntax
DBA_FILE_GROUP_TABLES: Syntax
DBA_FILE_GROUP_TABLESPACES: Syntax
DBA_FILE_GROUP_VERSIONS: Syntax
DBA_FREE_SPACE: Syntax
DBA_FREE_SPACE_COALESCED: Syntax
DBA_HIGH_WATER_MARK_STATISTICS: Syntax
DBA_HIST_ACTIVE_SESS_HISTORY: Syntax
DBA_HIST_BASELINE: Syntax
DBA_HIST_BG_EVENT_SUMMARY: Syntax
DBA_HIST_BUFFERED_QUEUES: Syntax
DBA_HIST_BUFFERED_SUBSCRIBERS: Syntax
DBA_HIST_BUFFER_POOL_STAT: Syntax
DBA_HIST_COMP_IOSTAT: Syntax
DBA_HIST_CR_BLOCK_SERVER: Syntax
DBA_HIST_CURRENT_BLOCK_SERVER: Syntax
DBA_HIST_DATABASE_INSTANCE: Syntax
DBA_HIST_DATAFILE: Syntax
DBA_HIST_DB_CACHE_ADVICE: Syntax
DBA_HIST_DLM_MISC: Syntax
DBA_HIST_ENQUEUE_STAT: Syntax
DBA_HIST_EVENT_NAME: Syntax
DBA_HIST_FILEMETRIC_HISTORY: Syntax
DBA_HIST_FILESTATXS: Syntax
DBA_HIST_INSTANCE_RECOVERY: Syntax
DBA_HIST_INST_CACHE_TRANSFER: Syntax
DBA_HIST_JAVA_POOL_ADVICE: Syntax
DBA_HIST_LATCH: Syntax
DBA_HIST_LATCH_CHILDREN: Syntax
DBA_HIST_LATCH_MISSES_SUMMARY: Syntax
DBA_HIST_LATCH_NAME: Syntax
DBA_HIST_LATCH_PARENT: Syntax
DBA_HIST_LIBRARYCACHE: Syntax
DBA_HIST_LOG: Syntax
DBA_HIST_METRIC_NAME: Syntax
DBA_HIST_MTTR_TARGET_ADVICE: Syntax
DBA_HIST_OPTIMIZER_ENV: Syntax
DBA_HIST_OSSTAT: Syntax
DBA_HIST_OSSTAT_NAME: Syntax
DBA_HIST_PARAMETER: Syntax
DBA_HIST_PARAMETER_NAME: Syntax
DBA_HIST_PGASTAT: Syntax
DBA_HIST_PGA_TARGET_ADVICE: Syntax
DBA_HIST_PROCESS_MEM_SUMMARY: Syntax
DBA_HIST_RESOURCE_LIMIT: Syntax
DBA_HIST_ROWCACHE_SUMMARY: Syntax
DBA_HIST_RULE_SET: Syntax
DBA_HIST_SEG_STAT: Syntax
DBA_HIST_SEG_STAT_OBJ: Syntax
DBA_HIST_SERVICE_NAME: Syntax
DBA_HIST_SERVICE_STAT: Syntax
DBA_HIST_SERVICE_WAIT_CLASS: Syntax
DBA_HIST_SESSMETRIC_HISTORY: Syntax
DBA_HIST_SESS_TIME_STATS: Syntax
DBA_HIST_SGA: Syntax
DBA_HIST_SGASTAT: Syntax
DBA_HIST_SGA_TARGET_ADVICE: Syntax
DBA_HIST_SHARED_POOL_ADVICE: Syntax
DBA_HIST_SNAPSHOT: Syntax
DBA_HIST_SNAP_ERROR: Syntax
DBA_HIST_SQLBIND: Syntax
DBA_HIST_SQLSTAT: Syntax
DBA_HIST_SQLTEXT: Syntax
DBA_HIST_SQL_BIND_METADATA: Syntax
DBA_HIST_SQL_PLAN: Syntax
DBA_HIST_SQL_SUMMARY: Syntax
DBA_HIST_SQL_WORKAREA_HSTGRM: Syntax
DBA_HIST_STAT_NAME: Syntax
DBA_HIST_STREAMS_APPLY_SUM: Syntax
DBA_HIST_STREAMS_CAPTURE: Syntax
DBA_HIST_STREAMS_POOL_ADVICE: Syntax
DBA_HIST_SYSMETRIC_HISTORY: Syntax
DBA_HIST_SYSMETRIC_SUMMARY: Syntax
DBA_HIST_SYSSTAT: Syntax
DBA_HIST_SYSTEM_EVENT: Syntax
DBA_HIST_SYS_TIME_MODEL: Syntax
DBA_HIST_TABLESPACE_STAT: Syntax
DBA_HIST_TBSPC_SPACE_USAGE: Syntax
DBA_HIST_TEMPFILE: Syntax
DBA_HIST_TEMPSTATXS: Syntax
DBA_HIST_THREAD: Syntax
DBA_HIST_UNDOSTAT: Syntax
DBA_HIST_WAITCLASSMET_HISTORY: Syntax
DBA_HIST_WAITSTAT: Syntax
DBA_HIST_WR_CONTROL: Syntax
DBA_INDEXES: Syntax
DBA_INDEXTYPES: Syntax
DBA_INDEXTYPE_ARRAYTYPES: Syntax
DBA_INDEXTYPE_COMMENTS: Syntax
DBA_INDEXTYPE_OPERATORS: Syntax
DBA_IND_COLUMNS: Syntax
DBA_IND_EXPRESSIONS: Syntax
DBA_IND_PARTITIONS: Syntax
DBA_IND_STATISTICS: Syntax
DBA_IND_SUBPARTITIONS: Syntax
DBA_INTERNAL_TRIGGERS: Syntax
DBA_JAVA_ARGUMENTS: Syntax
DBA_JAVA_CLASSES: Syntax
DBA_JAVA_DERIVATIONS: Syntax
DBA_JAVA_FIELDS: Syntax
DBA_JAVA_IMPLEMENTS: Syntax
DBA_JAVA_INNERS: Syntax
DBA_JAVA_LAYOUTS: Syntax
DBA_JAVA_METHODS: Syntax
DBA_JAVA_NCOMPS: Syntax
DBA_JAVA_POLICY: Syntax
DBA_JAVA_RESOLVERS: Syntax
DBA_JAVA_THROWS: Syntax
DBA_JOBS: Syntax
DBA_JOBS_RUNNING: Syntax
DBA_JOIN_IND_COLUMNS: Syntax
DBA_KGLLOCK: Syntax
DBA_LIBRARIES: Syntax
DBA_LMT_FREE_SPACE: Syntax
DBA_LMT_USED_EXTENTS: Syntax
DBA_LOBS: Syntax
DBA_LOB_PARTITIONS: Syntax
DBA_LOB_SUBPARTITIONS: Syntax
DBA_LOB_TEMPLATES: Syntax
DBA_LOCK: Syntax
DBA_LOCKS: Syntax
DBA_LOCK_INTERNAL: Syntax
DBA_LOGMNR_LOG: Syntax
DBA_LOGMNR_PURGED_LOG: Syntax
DBA_LOGMNR_SESSION: Syntax
DBA_LOGSTDBY_EVENTS: Syntax
DBA_LOGSTDBY_HISTORY: Syntax
DBA_LOGSTDBY_LOG: Syntax
DBA_LOGSTDBY_NOT_UNIQUE: Syntax
DBA_LOGSTDBY_PARAMETERS: Syntax
DBA_LOGSTDBY_PROGRESS: Syntax
DBA_LOGSTDBY_SKIP: Syntax
DBA_LOGSTDBY_SKIP_TRANSACTION: Syntax
DBA_LOGSTDBY_UNSUPPORTED: Syntax
DBA_LOG_GROUPS: Syntax
DBA_LOG_GROUP_COLUMNS: Syntax
DBA_METHOD_PARAMS: Syntax
DBA_METHOD_RESULTS: Syntax
DBA_MVIEWS: Syntax
DBA_MVIEW_AGGREGATES: Syntax
DBA_MVIEW_ANALYSIS: Syntax
DBA_MVIEW_COMMENTS: Syntax
DBA_MVIEW_DETAIL_RELATIONS: Syntax
DBA_MVIEW_JOINS: Syntax
DBA_MVIEW_KEYS: Syntax
DBA_MVIEW_LOGS: Syntax
DBA_MVIEW_LOG_FILTER_COLS: Syntax
DBA_MVIEW_REFRESH_TIMES: Syntax
DBA_NESTED_TABLES: Syntax
DBA_NESTED_TABLE_COLS: Syntax
DBA_OBJECTS: Syntax
DBA_OBJECT_SIZE: Syntax
DBA_OBJECT_TABLES: Syntax
DBA_OBJ_AUDIT_OPTS: Syntax
DBA_OBJ_COLATTRS: Syntax
DBA_OPANCILLARY: Syntax
DBA_OPARGUMENTS: Syntax
DBA_OPBINDINGS: Syntax
DBA_OPERATORS: Syntax
DBA_OPERATOR_COMMENTS: Syntax
DBA_OPTSTAT_OPERATIONS: Syntax
DBA_ORPHAN_KEY_TABLE: Syntax
DBA_OUTLINES: Syntax
DBA_OUTLINE_HINTS: Syntax
DBA_OUTSTANDING_ALERTS: Syntax
DBA_PARTIAL_DROP_TABS: Syntax
DBA_PART_COL_STATISTICS: Syntax
DBA_PART_HISTOGRAMS: Syntax
DBA_PART_INDEXES: Syntax
DBA_PART_KEY_COLUMNS: Syntax
DBA_PART_LOBS: Syntax
DBA_PART_TABLES: Syntax
DBA_PENDING_CONV_TABLES: Syntax
DBA_PENDING_TRANSACTIONS: Syntax
DBA_PLSQL_OBJECT_SETTINGS: Syntax
DBA_POLICIES: Syntax
DBA_POLICY_CONTEXTS: Syntax
DBA_POLICY_GROUPS: Syntax
DBA_PRIV_AUDIT_OPTS: Syntax
DBA_PROCEDURES: Syntax
DBA_PROFILES: Syntax
DBA_PROPAGATION: Syntax
DBA_PROXIES: Syntax
DBA_PUBLISHED_COLUMNS: Syntax
DBA_QUEUES: Syntax
DBA_QUEUE_SCHEDULES: Syntax
DBA_QUEUE_SUBSCRIBERS: Syntax
DBA_QUEUE_TABLES: Syntax
DBA_RCHILD: Syntax
DBA_RECOVERABLE_SCRIPT: Syntax
DBA_RECOVERABLE_SCRIPT_BLOCKS: Syntax
DBA_RECOVERABLE_SCRIPT_ERRORS: Syntax
DBA_RECOVERABLE_SCRIPT_PARAMS: Syntax
DBA_RECYCLEBIN: Syntax
DBA_REDEFINITION_ERRORS: Syntax
DBA_REDEFINITION_OBJECTS: Syntax
DBA_REFRESH: Syntax
DBA_REFRESH_CHILDREN: Syntax
DBA_REFS: Syntax
DBA_REGISTERED_ARCHIVED_LOG: Syntax
DBA_REGISTERED_MVIEWS: Syntax
DBA_REGISTERED_MVIEW_GROUPS: Syntax
DBA_REGISTRY: Syntax
DBA_REGISTRY_HIERARCHY: Syntax
DBA_REGISTRY_HISTORY: Syntax
DBA_REGISTRY_LOG: Syntax
DBA_REPAIR_TABLE: Syntax
DBA_RESOURCE_INCARNATIONS: Syntax
DBA_RESUMABLE: Syntax
DBA_REWRITE_EQUIVALENCES: Syntax
DBA_RGROUP: Syntax
DBA_ROLES: Syntax
DBA_ROLE_PRIVS: Syntax
DBA_ROLLBACK_SEGS: Syntax
DBA_RSRC_CONSUMER_GROUPS: Syntax
DBA_RSRC_CONSUMER_GROUP_PRIVS: Syntax
DBA_RSRC_GROUP_MAPPINGS: Syntax
DBA_RSRC_MANAGER_SYSTEM_PRIVS: Syntax
DBA_RSRC_MAPPING_PRIORITY: Syntax
DBA_RSRC_PLANS: Syntax
DBA_RSRC_PLAN_DIRECTIVES: Syntax
DBA_RULES: Syntax
DBA_RULE_SETS: Syntax
DBA_RULE_SET_RULES: Syntax
DBA_SCHEDULER_CHAINS: Syntax
DBA_SCHEDULER_CHAIN_RULES: Syntax
DBA_SCHEDULER_CHAIN_STEPS: Syntax
DBA_SCHEDULER_GLOBAL_ATTRIBUTE: Syntax
DBA_SCHEDULER_JOBS: Syntax
DBA_SCHEDULER_JOB_ARGS: Syntax
DBA_SCHEDULER_JOB_CLASSES: Syntax
DBA_SCHEDULER_JOB_LOG: Syntax
DBA_SCHEDULER_JOB_RUN_DETAILS: Syntax
DBA_SCHEDULER_PROGRAMS: Syntax
DBA_SCHEDULER_PROGRAM_ARGS: Syntax
DBA_SCHEDULER_RUNNING_CHAINS: Syntax
DBA_SCHEDULER_RUNNING_JOBS: Syntax
DBA_SCHEDULER_SCHEDULES: Syntax
DBA_SCHEDULER_WINDOWS: Syntax
DBA_SCHEDULER_WINDOW_DETAILS: Syntax
DBA_SCHEDULER_WINDOW_GROUPS: Syntax
DBA_SCHEDULER_WINDOW_LOG: Syntax
DBA_SCHEDULER_WINGROUP_MEMBERS: Syntax
DBA_SEC_RELEVANT_COLS: Syntax
DBA_SEGMENTS: Syntax
DBA_SEGMENTS_OLD: Syntax
DBA_SEQUENCES: Syntax
DBA_SERVER_REGISTRY: Syntax
DBA_SERVICES: Syntax
DBA_SOURCE: Syntax
DBA_SOURCE_TABLES: Syntax
DBA_SQLJ_TYPES: Syntax
DBA_SQLJ_TYPE_ATTRS: Syntax
DBA_SQLJ_TYPE_METHODS: Syntax
DBA_SQLSET: Syntax
DBA_SQLSET_BINDS: Syntax
DBA_SQLSET_PLANS: Syntax
DBA_SQLSET_REFERENCES: Syntax
DBA_SQLSET_STATEMENTS: Syntax
DBA_SQLTUNE_BINDS: Syntax
DBA_SQLTUNE_PLANS: Syntax
DBA_SQLTUNE_RATIONALE_PLAN: Syntax
DBA_SQLTUNE_STATISTICS: Syntax
DBA_SQL_PROFILES: Syntax
DBA_STMT_AUDIT_OPTS: Syntax
DBA_STORED_SETTINGS: Syntax
DBA_STREAMS_ADD_COLUMN: Syntax
DBA_STREAMS_ADMINISTRATOR: Syntax
DBA_STREAMS_DELETE_COLUMN: Syntax
DBA_STREAMS_GLOBAL_RULES: Syntax
DBA_STREAMS_MESSAGE_CONSUMERS: Syntax
DBA_STREAMS_MESSAGE_RULES: Syntax
DBA_STREAMS_NEWLY_SUPPORTED: Syntax
DBA_STREAMS_RENAME_COLUMN: Syntax
DBA_STREAMS_RENAME_SCHEMA: Syntax
DBA_STREAMS_RENAME_TABLE: Syntax
DBA_STREAMS_RULES: Syntax
DBA_STREAMS_SCHEMA_RULES: Syntax
DBA_STREAMS_TABLE_RULES: Syntax
DBA_STREAMS_TRANSFORMATIONS: Syntax
DBA_STREAMS_TRANSFORM_FUNCTION: Syntax
DBA_STREAMS_UNSUPPORTED: Syntax
DBA_SUBPARTITION_TEMPLATES: Syntax
DBA_SUBPART_COL_STATISTICS: Syntax
DBA_SUBPART_HISTOGRAMS: Syntax
DBA_SUBPART_KEY_COLUMNS: Syntax
DBA_SUBSCRIBED_COLUMNS: Syntax
DBA_SUBSCRIBED_TABLES: Syntax
DBA_SUBSCRIPTIONS: Syntax
DBA_SYNONYMS: Syntax
DBA_SYS_PRIVS: Syntax
DBA_TABLES: Syntax
DBA_TABLESPACES: Syntax
DBA_TABLESPACE_GROUPS: Syntax
DBA_TAB_COLS: Syntax
DBA_TAB_COLUMNS: Syntax
DBA_TAB_COL_STATISTICS: Syntax
DBA_TAB_COMMENTS: Syntax
DBA_TAB_HISTOGRAMS: Syntax
DBA_TAB_MODIFICATIONS: Syntax
DBA_TAB_PARTITIONS: Syntax
DBA_TAB_PRIVS: Syntax
DBA_TAB_STATISTICS: Syntax
DBA_TAB_STATS_HISTORY: Syntax
DBA_TAB_SUBPARTITIONS: Syntax
DBA_TEMP_FILES: Syntax
DBA_THRESHOLDS: Syntax
DBA_TRANSFORMATIONS: Syntax
DBA_TRIGGERS: Syntax
DBA_TRIGGER_COLS: Syntax
DBA_TSM_DESTINATION: Syntax
DBA_TSM_SOURCE: Syntax
DBA_TS_QUOTAS: Syntax
DBA_TUNE_MVIEW: Syntax
DBA_TYPES: Syntax
DBA_TYPE_ATTRS: Syntax
DBA_TYPE_METHODS: Syntax
DBA_TYPE_VERSIONS: Syntax
DBA_UNDO_EXTENTS: Syntax
DBA_UNUSED_COL_TABS: Syntax
DBA_UPDATABLE_COLUMNS: Syntax
DBA_USERS: Syntax
DBA_USTATS: Syntax
DBA_VARRAYS: Syntax
DBA_VIEWS: Syntax
DBA_WAITERS: Syntax
DBA_WARNING_SETTINGS: Syntax
DBA_XML_SCHEMAS: Syntax
DBA_XML_TABLES: Syntax
DBA_XML_TAB_COLS: Syntax
DBA_XML_VIEWS: Syntax
DBA_XML_VIEW_COLS: Syntax