Apache Doris v1.0 Documentation
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lcase

来源 Doris 浏览 2 扫码 打印 2026-11-06 15:41:37
  • lcase
    • Description
      • Syntax
    • keyword

lcase

Description

Syntax

INT lcase (VARCHAR str)

Consistent with lower.

keyword

LCASE

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  • Downloads
  • Compilation and Deployment
    • Compilation
    • Compiling with LDB toolchain
    • Compile on ARM platform
    • Installation and deployment
    • Cluster upgrade
  • Getting Started
    • Guidelines for Basic Use
    • Advanced Use Guide
    • Data Model, ROLLUP and Prefix Index
    • Data Partition
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      • Introduction Overview
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        • MANAGER
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      • GET TABLETS DISTRIBUTION BETWEEN DIFFERENT DISKS
    • Maintainence Operation
      • Doris Error Table
      • Description of the return value of the OLAP function on the BE side
      • Disk Capacity Management
      • Metadata Operations and Maintenance
      • Monitoring and alarming
      • Multi-tenancy(Deprecated)
      • Tablet metadata management tool
      • Data replica management
      • Tablet Restore Tool
      • Metrics
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    • Configuration
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      • User Property
    • Block Rule
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  • Benchmark & Sample
    • Star-Schema-Benchmark
    • Systemd
    • Samples
  • Extending Ability
    • Audit log plugin
    • Doris On ES
    • Logstash Doris Output Plugin
    • ODBC of Doris
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    • Iceberg of Doris
    • Plugin Development Manual
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    • DataX doriswriter
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      • Seatunnel Connector Spark Doris
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    • UDF
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  • Design Documents
    • Doris Storage File Format Optimization
    • GROUPING SETS DESIGN
    • Metadata Design Document
  • SQL Manual
    • SQL Functions
      • Date Time Functions
        • curdate
        • current_timestamp
        • date_add
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        • datediff
        • day
        • dayname
        • Dayofmonth
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        • hour
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        • minute
        • month
        • Monthname
        • now
        • second
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        • time_round
        • timediff
        • timestampadd
        • timestampdiff
        • to_days
        • unix_timestamp
        • utc_timestamp
        • week
        • weekday
        • weekofyear
        • year
        • yearweek
      • Sptial Functions
        • ST_AsText,ST_AsWKT
        • ST_Circle
        • `ST_Contains’
        • ST_Distance_Sphere
        • ST_GeometryFromText,ST GeomFromText
        • ST_LineFromText,ST_LineStringFromText
        • St_Point’
        • ST_Polygon,ST_PolyFromText,ST_PolygonFromText
        • ST_X
        • ST_Y
      • String Functions
        • appendtrailingcharifabsent
        • ASCII
        • bit_length
        • CHAR_LENGTH
        • concat
        • Concat_ws
        • ends_with
        • findinset
        • hex
        • instr
        • lcase
        • left
        • length
        • locate
        • lower
        • lpad
        • ltrim
        • money_format
        • nullorempty
        • repeat
        • replace
        • REVERSE
        • right
        • rpad
        • split_part
        • starts_with
        • strleft
        • strright
        • substring
        • unhex
        • fuzzy match
          • like
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        • regular match
          • regexp
          • regexp_extract
          • regexp_replace
          • not regexp
      • Aggregate Functions
        • APPROXCOUNTDISTINCT
        • GROUP_CONCAT
        • AVG
        • BITMAP_UNION
        • COUNT
        • HLLUNIONAGG
        • MAX
        • MIN
        • PERCENTILE
        • PERCENTILE_APPROX
        • STDDEV,STDDEV_POP
        • STDDEV_SAMP
        • SUM
        • TOPN
        • VARIANCESAMP,VARIANCESAMP
        • VARIANCE,VARPOP,VARIANCEPOP
      • bitmap functions
        • bitmap_and
        • bitmap_contains
        • bitmap_empty
        • bitmapfromstring
        • bitmaphasany
        • bitmaphasall
        • bitmap_hash
        • bitmap_intersect
        • bitmap_or
        • bitmapandcount
        • bitmaporcount
        • bitmapxorcount
        • bitmap_not
        • bitmapandnot
        • bitmapandnot_count
        • bitmapsubsetin_range
        • bitmapsubsetlimit
        • sub_bitmap
        • bitmaptostring
        • bitmap_union
        • bitmap_xor
        • to_bitmap
        • bitmap_max
        • orthogonalbitmapintersect
        • orthogonalbitmapintersect_count
        • orthogonalbitmapunion_count
      • bitwise function
        • bitand
        • bitor
        • bitxor
        • bitnot
      • json function
        • getjsondouble
        • getjsonint
        • getjsonstring
        • json_array
        • json_object
        • json_quote
      • Encryption and Digest Functions
        • AES
        • MD5
        • MD5SUM
        • SM4
        • SM3
        • SM3SUM
      • Hash Functions
        • murmurhash332
      • Math Functions
        • conv
        • pmod
      • table functions
        • explode_bitmap
        • explode_split
        • explodejsonarray
      • window function
      • CAST
      • DIGITAL-MASKING
    • SQL Statements
      • Account Management
        • CREATE ROLE
        • CREATE USER
        • DROP ROLE
        • DROP USER
        • Grant
        • REVOKE
        • SET PASSWORD
        • SET PROPERTY
        • SHOW GRANTS
        • SHOW ROLES
      • Administration
        • ADMIN CANCEL REPAIR
        • ADMIN CLEAN TRASH
        • ADMIN CHECK TABLET
        • ADMIN COMPACT
        • ADMIN REPAIR
        • ADMIN SET CONFIG
        • ADMIN SET REPLICA STATUS
        • ADMIN SHOW CONFIG
        • ADMIN SHOW REPLICA DISTRIBUTION
        • ADMIN SHOW REPLICA STATUS
        • ALTER CLUSTER
        • ALTER SYSTEM
        • CANCEL DECOMMISSION
        • CREATE CLUSTER
        • CREATE FILE
        • DROP CLUSTER
        • DROP FILE
        • ENTER
        • INSTALL PLUGIN
        • LINK DATABASE
        • MIGRATE DATABASE
        • SET LDAPADMINPASSWORD
        • SHOW BACKENDS
        • SHOW BROKER
        • SHOW FILE
        • SHOW FRONTENDS
        • SHOW FULL COLUMNS
        • SHOW INDEX
        • SHOW MIGRATIONS
        • SHOW PLUGINS
        • SHOW TABLE STATUS
        • SHOW TRASH
        • UNINSTALL PLUGIN
      • Data Definition
        • ALTER DATABASE
        • ALTER TABLE
        • ALTER VIEW
        • BACKUP
        • CANCEL ALTER
        • CANCEL BACKUP
        • CREATE ENCRYPTKEY
        • CANCEL RESTORE
        • CREATE DATABASE
        • CREATE INDEX
        • CREATE MATERIALIZED VIEW
        • CREATE REPOSITORY
        • CREATE TABLE LIKE
        • CREATE TABLE
        • CREATE VIEW
        • Colocate Join
        • DROP DATABASE
        • DROP ENCRYPTKEY
        • DROP INDEX
        • DROP MATERIALIZED VIEW
        • DROP REPOSITORY
        • DROP TABLE
        • DROP VIEW
        • HLL
        • RECOVER
        • REFRESH DATABASE
        • REFRESH TABLE
        • RESTORE
        • SHOW ENCRYPTKEYS
        • TRUNCATE TABLES
        • CREATE FUNCTION
        • DROP FUNCTION
        • SHOW FUNCTIONS
      • Data Manipulation
        • BEGIN
        • BROKER LOAD
        • CANCEL DELETE
        • Cancel Label
        • CANCEL LOAD
        • CREATE SYNC JOB
        • DELETE
        • EXPORT
        • GET LABEL STATE
        • GROUP BY
        • LOAD
        • MINI LOAD
        • MULTI LOAD
        • OUTFILE
        • PAUSE ROUTINE LOAD
        • PAUSE SYNC JOB
        • RESTORE TABLET
        • RESUME ROUTINE LOAD
        • RESUME SYNC JOB
        • ROUTINE LOAD
        • SHOW ALTER
        • SHOW BACKUP
        • SHOW CREATE FUNCTION
        • SHOW CREATE ROUTINE LOAD
        • SHOW DATA
        • SHOW DATA SKEW
        • SHOW DATABASES
        • SHOW DELETE
        • SHOW DYNAMIC PARTITION TABLES
        • SHOW EXPORT
        • SHOW LOAD
        • SHOW PARTITIONS
        • SHOW PROPERTY
        • SHOW REPOSITORIES
        • SHOW RESTORE
        • SHOW ROUTINE LOAD TASK
        • SHOW ROUTINE LOAD
        • SHOW SNAPSHOT
        • SHOW SYNC JOB
        • SHOW TABLES
        • SHOW TABLE CREATION
        • SHOW TABLET
        • SHOW TRANSACTION
        • SHOW LAST INSERT
        • STOP ROUTINE LOAD
        • STOP SYNC JOB
        • STREAM LOAD
        • ALTER ROUTINE LOAD
        • INSERT
        • UPDATE
        • Lateral View
      • Data Types
        • BIGINT
        • BITMAP
        • BOOLEAN
        • CHAR
        • date
        • DATETIME
        • DECIMAL
        • Double
        • FLOAT
        • HLL (HyperLogLog)
        • INT
        • SMALLINT
        • STRING
        • TINYINT
        • VARCHAR
      • Utility
        • Describe
  • Doris User
    • user case
  • Developer Guide
    • Debug Tool
    • Doris Docker quick build development environment
    • Doris BE Storage Layer Benchmark Tool
    • Setting FE dev env - Eclipse
    • Setting Up dev env for FE - IntelliJ IDEA
    • BE development and debugging environment under Linux
    • Java Format Code
    • C++ Format Code
    • How to Share blogs
    • Minidump
    • Bitmap/HLL data format
  • FAQ
    • FAQ
    • Common Error
  • Apache Community
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      • Contribute to Doris
      • Committer Guide
      • Commit Format Specification
      • Code Submission Guide
    • Release Process & Verification
      • Release Preparation
      • Release Doris Core
      • Release Doris Connectors
      • Complete Release
      • Verify the Apache release version
    • Security
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