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It returns true if the string is an empty string or NULL. Otherwise it returns false.
NULL_OR_EMPTY
null_or_empty
- Admin Manual
- Sql Interception
- Multi-tenancy
- tracing
- performance optimization
- cluster management
- Config
- Data Admin
- HTTP API
- GET TABLETS DISTRIBUTION BETWEEN DIFFERENT DISKS
- GET LABEL STATE
- CANCEL LABEL
- QUERY DETAIL
- MIGRATE SINGLE TABLET TO A PARTICULAR DISK
- FE
- Session Action
- Log Action
- Show Proc Action
- Query Profile Action
- Row Count Action
- Hardware Info Action
- Check Storage Type Action
- Show Meta Info Action
- Get Small File Action
- Meta Info Action
- Backends Action
- Config Action
- Health Action
- Show Data Action
- Statement Execution Action
- Get DDL Statement Action
- Meta Action
- Upload Action
- Set Config Action
- Connection Action
- Logout Action
- MANAGER
- Profile Action
- Get FE log file
- System Action
- Table Query Plan Action
- Query Schema Action
- Show Runtime Info Action
- Get Load Info Action
- Meta Replay State Action
- Table Schema Action
- HA Action
- Table Row Count Action
- Cancel Load Action
- Bootstrap Action
- Query Detail Action
- Check Decommission Action
- Get Load State
- RESTORE TABLET
- CONNECTION
- GET TABLETS ON A PARTICULAR BE
- SHOW DATA
- CHECK ALL TABLET SEGMENT LOST
- CHECK/RESET Stub Cache
- Compaction Action
- PROFILE
- get\_log\_file
- Maintenance and Monitor
- User Privilege and Ldap
- Statistics of query execution
- Advanced Usage
- Data Operation
- Doris Introduction
- Ecosystem
- FAQ
- Getting Started
- Install And Deploy
- SQL Manual
- SQL Functions
- CAST
- DIGITAL-MASKING
- Analytic(Window) Functions
- WINDOW-FUNCTION-FIRST_VALUE
- WINDOW-FUNCTION-ROW_NUMBER
- WINDOW-FUNCTION
- WINDOW-FUNCTION-COUNT
- WINDOW-FUNCTION-SUM
- WINDOW-FUNCTION-LAST_VALUE
- WINDOW-FUNCTION-MIN
- WINDOW-FUNCTION-LAG
- WINDOW-FUNCTION-DENSE_RANK
- WINDOW-FUNCTION-AVG
- WINDOW-FUNCTION-RANK
- WINDOW-FUNCTION-WINDOW-FUNNEL
- WINDOW-FUNCTION-LEAD
- WINDOW-FUNCTION-NTILE
- WINDOW-FUNCTION-MAX
- Aggregate Functions
- Array Functions
- Bitmap Functions
- bitmap_subset_in_range
- bitmap_contains
- sub_bitmap
- bitmap_count
- to_bitmap
- bitmap_has_any
- bitmap_and_count
- bitmap_max
- bitmap_empty
- bitmap_min
- bitmap_subset_limit
- bitmap_xor
- bitmap_and_not_count
- orthogonal_bitmap_intersect_count
- bitmap_hash
- bitmap_intersect
- bitmap_not
- bitmap_from_string
- orthogonal_bitmap_intersect
- bitmap_and
- bitmap_to_string
- orthogonal_bitmap_union_count
- intersect_count
- bitmap_and_not
- bitmap_xor_count
- bitmap_union
- bitmap_has_all
- bitmap_or_count
- bitmap_or
- Bitwise Functions
- Condition Functions
- Date Functions
- weeks_add
- week
- hours_sub
- timestampdiff
- weeks_sub
- hours_add
- datediff
- date_add
- months_diff
- year
- dayofweek
- minute
- date_format
- seconds_sub
- str_to_date
- to_days
- dayofmonth
- dayname
- days_sub
- unix_timestamp
- weekday
- curdate,current_date
- from_unixtime
- hours_diff
- month
- weeks_diff
- minutes_diff
- months_add
- day
- makedate
- from_days
- days_diff
- timediff
- monthname
- yearweek
- quarter
- minutes_sub
- localtime,localtimestamp
- minutes_add
- weekofyear
- current_timestamp
- seconds_add
- time_round
- curtime,current_time
- hour
- dayofyear
- days_add
- second
- years_diff
- now
- extract
- years_add
- convert_tz
- months_sub
- timestampadd
- date_sub
- utc_timestamp
- to_date
- seconds_diff
- years_sub
- Encryption Functions
- GIS Functions
- Hash Functions
- JSON Functions
- Math Functions
- String Functions
- Table Functions
- SQL Reference
- Account Management
- Cluster management
- ALTER-SYSTEM-ADD-OBSERVER
- ALTER-SYSTEM-DROP-FOLLOWER
- ALTER-SYSTEM-ADD-BROKER
- ALTER-SYSTEM-DROP-BACKEND
- ALTER-SYSTEM-ADD-FOLLOWER
- ALTER-SYSTEM-DROP-OBSERVER
- ALTER-SYSTEM-DROP-BROKER
- ALTER-SYSTEM-MODIFY-BROKER
- ALTER-SYSTEM-ADD-BACKEND
- CANCEL-ALTER-SYSTEM
- ALTER-SYSTEM-MODIFY-BACKEND
- ALTER-SYSTEM-DECOMMISSION-BACKEND
- Database Administration
- ADMIN-SHOW-REPLICA-DISTRIBUTION
- ADMIN-SHOW-REPLICA-STATUS
- ADMIN DIAGNOSE TABLET
- ADMIN-COPY-TABLET
- ADMIN-SET-CONFIG
- ENABLE-FEATURE
- ADMIN-SHOW-CONFIG
- UNINSTALL-PLUGIN
- ADMIN SHOW TABLET STORAGE FORMAT
- ADMIN-CLEAN-TRASH
- ADMIN-SET-REPLICA-STATUS
- KILL
- INSTALL-PLUGIN
- ADMIN-CANCEL-REPAIR
- SET-VARIABLE
- RECOVER
- ADMIN-CHECK-TABLET
- ADMIN-REPAIR-TABLE
- Data Types
- DDL
- DML
- Show
- SHOW-COLUMNS
- SHOW-PROPERTY
- SHOW-BACKUP
- SHOW-TABLES
- SHOW-BACKENDS
- SHOW-EVENTS
- SHOW-STATUS
- SHOW-TRIGGERS
- SHOW-VIEW
- SHOW-FUNCTIONS
- SHOW-PROCEDURE
- SHOW-ROLES
- SHOW-ROUTINE-LOAD
- SHOW-FILE
- SHOW-TABLE-STATUS
- SHOW-FRONTENDS
- SHOW-DATABASE-ID
- SHOW-ROLLUP
- SHOW-SNAPSHOT
- SHOW-SMALL-FILES
- SHOW-ALTER
- SHOW-CREATE-DATABASE
- SHOW-CHARSET
- SHOW-ENCRYPT-KEY
- SHOW-TRASH
- SHOW-QUERY-PROFILE
- SHOW-MIGRATIONS
- SHOW-PARTITION-ID
- SHOW-EXPORT
- SHOW-DYNAMIC-PARTITION
- SHOW-WARNING
- SHOW-PROCESSLIST
- SHOW-COLLATION
- SHOW-CREATE-TABLE
- SHOW-SYNC-JOB
- SHOW-VARIABLES
- SHOW-ROUTINE-LOAD-TASK
- SHOW-DATABASES
- SHOW-DELETE
- SHOW-TABLET
- SHOW-WHITE-LIST
- SHOW-TRANSACTION
- SHOW-PLUGINS
- SHOW-GRANTS
- SHOW-BROKER
- SHOW ALTER TABLE MATERIALIZED VIEW
- SHOW-SQL-BLOCK-RULE
- SHOW-CREATE-MATERIALIZED-VIEW
- SHOW DATA SKEW
- SHOW-TABLETS
- SHOW-TABLE-ID
- SHOW-PARTITIONS
- SHOW-CREATE-FUNCTION
- SHOW-ENGINES
- SHOW-DATA
- SHOW-LOAD-PROFILE
- SHOW-LOAD
- SHOW-PROC
- SHOW-REPOSITORIES
- SHOW-RESOURCES
- SHOW-INDEX
- SHOW-RESTORE
- SHOW-LOAD-WARNINGS
- SHOW-LAST-INSERT
- SHOW-CREATE-ROUTINE-LOAD
- SHOW-STREAM-LOAD
- SHOW-OPEN-TABLES
- Utility
- SQL Functions
- Table Design
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