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# Keywords 

Reserved words（Can not be used as identifier）:

- ROOT
- TIME
- TIMESTAMP
- AND
- OR
- NOT
- NULL
- CONTAINS

Common Keywords:

- ADD
- AFTER
- ALIAS
- ALIGN
- ALIGNED
- ALL
- ALTER
- ALTER_TIMESERIES
- ANY
- APPEND
- APPLY_TEMPLATE
- AS
- ASC
- ATTRIBUTES
- BEFORE
- BEGIN
- BLOCKED
- BOUNDARY
- BY
- CACHE
- CHILD
- CLEAR
- CLUSTER
- CONCAT
- CONFIGNODES
- CONFIGURATION
- CONTINUOUS
- COUNT
- CONTAIN
- CQ
- CQS
- CREATE
- CREATE_CONTINUOUS_QUERY
- CREATE_FUNCTION
- CREATE_ROLE
- CREATE_TIMESERIES
- CREATE_TRIGGER
- CREATE_USER
- DATA
- DATABASE
- DATABASES
- DATANODES
- DEACTIVATE
- DEBUG
- DELETE
- DELETE_ROLE
- DELETE_STORAGE_GROUP
- DELETE_TIMESERIES
- DELETE_USER
- DESC
- DESCRIBE
- DEVICE
- DEVICES
- DISABLE
- DISCARD
- DROP
- DROP_CONTINUOUS_QUERY
- DROP_FUNCTION
- DROP_TRIGGER
- END
- ENDTIME
- EVERY
- EXPLAIN
- FILL
- FILE
- FLUSH
- FOR
- FROM
- FULL
- FUNCTION
- FUNCTIONS
- GLOBAL
- GRANT
- GRANT_ROLE_PRIVILEGE
- GRANT_USER_PRIVILEGE
- GRANT_USER_ROLE
- GROUP
- HAVING
- INDEX
- INFO
- INSERT
- INSERT_TIMESERIES
- INTO
- KILL
- LABEL
- LAST
- LATEST
- LEVEL
- LIKE
- LIMIT
- LINEAR
- LINK
- LIST
- LIST_ROLE
- LIST_USER
- LOAD
- LOCAL
- LOCK
- MERGE
- METADATA
- MODIFY_PASSWORD
- NODES
- NONE
- NOW
- OF
- OFF
- OFFSET
- ON
- ORDER
- ONSUCCESS
- PARTITION
- PASSWORD
- PATHS
- PIPE
- PIPES
- PIPESINK
- PIPESINKS
- PIPESINKTYPE
- POLICY
- PREVIOUS
- PREVIOUSUNTILLAST
- PRIVILEGES
- PROCESSLIST
- PROPERTY
- PRUNE
- QUERIES
- QUERY
- RANGE
- READONLY
- READ_TEMPLATE
- READ_TEMPLATE_APPLICATION
- READ_TIMESERIES
- REGEXP
- REGIONID
- REGIONS
- REMOVE
- RENAME
- RESAMPLE
- RESOURCE
- REVOKE
- REVOKE_ROLE_PRIVILEGE
- REVOKE_USER_PRIVILEGE
- REVOKE_USER_ROLE
- ROLE
- RUNNING
- SCHEMA
- SELECT
- SERIESSLOTID
- SET
- SET_STORAGE_GROUP
- SETTLE
- SGLEVEL
- SHOW
- SLIMIT
- SOFFSET
- STORAGE
- START
- STARTTIME
- STATELESS
- STATEFUL
- STOP
- SYSTEM
- TAGS
- TASK
- TEMPLATE
- TIMEOUT
- TIMESERIES
- TIMESLOTID
- TO
- TOLERANCE
- TOP
- TRACING
- TRIGGER
- TRIGGERS
- TTL
- UNLINK
- UNLOAD
- UNSET
- UPDATE
- UPDATE_TEMPLATE
- UPSERT
- URI
- USER
- USING
- VALUES
- VERIFY
- VERSION
- WATERMARK_EMBEDDING
- WHERE
- WITH
- WITHOUT
- WRITABLE