- StarRocks介绍
- 快速开始
- 表设计
- 数据导入
- 数据提取
- 使用StarRocks
- 参考手册
- SQL参考
- 用户账户管理
- 集群管理
- ADMIN CANCEL REPAIR
- ADMIN CHECK TABLET
- ADMIN REPAIR
- ADMIN SET CONFIG
- ADMIN SET REPLICA STATUS
- ADMIN SHOW CONFIG
- ADMIN SHOW REPLICA DISTRIBUTION
- ADMIN SHOW REPLICA STATUS
- ALTER SYSTEM
- CANCEL DECOMMISSION
- CREATE FILE
- DROP FILE
- INSTALL PLUGIN
- SHOW BACKENDS
- SHOW BROKER
- SHOW FRONTENDS
- SHOW FULL COLUMNS
- SHOW INDEX
- SHOW PLUGINS
- SHOW TABLE STATUS
- SHOW FILE
- UNINSTALL PLUGIN
- DDL
- ALTER DATABASE
- ALTER TABLE
- ALTER VIEW
- BACKUP
- CANCEL BACKUP
- CANCEL RESTORE
- CREATE DATABASE
- CREATE INDEX
- CREATE MATERIALIZED VIEW
- CREATE REPOSITORY
- CREATE RESOURCE
- CREATE TABLE LIKE
- CREATE TABLE
- CREATE VIEW
- CREATE FUNCTION
- DROP DATABASE
- DROP INDEX
- DROP MATERIALIZED VIEW
- DROP REPOSITORY
- DROP RESOURCE
- DROP TABLE
- DROP VIEW
- DROP FUNCTION
- HLL
- RECOVER
- RESTORE
- SHOW RESOURCES
- SHOW FUNCTION
- TRUNCATE TABLE
- DML
- ALTER ROUTINE LOAD
- BROKER LOAD
- CANCEL LOAD
- CANCEL EXPORT
- DELETE
- EXPORT
- GROUP BY
- INSERT
- PAUSE ROUTINE LOAD
- RESUME ROUTINE LOAD
- ROUTINE LOAD
- SELECT
- SHOW ALTER
- SHOW BACKUP
- SHOW CREATE TABLE
- SHOW CRAETE VIEW
- SHOW DATA
- SHOW DATABASES
- SHOW DELETE
- SHOW DYNAMIC PARTITION TABLES
- SHOW EXPORT
- SHOW LOAD
- SHOW PARTITIONS
- SHOW PROPERTY
- SHOW REPOSITORIES
- SHOW RESTORE
- SHOW ROUTINE LOAD
- SHOW ROUTINE LOAD TASK
- SHOW SNAPSHOT
- SHOW TABLES
- SHOW TABLET
- SHOW TRANSACTION
- SPARK LOAD
- STOP ROUTINE LOAD
- STREAM LOAD
- 数据类型
- 辅助命令
- 函数参考
- 系统变量
- 错误码
- 系统限制
- SQL参考
- 管理手册
- 常见问题解答
- 性能测试
编辑
length
description
Syntax
INT length(VARCHAR str)返回字符串的字节长度。
example
MySQL > select length("abc");
+---------------+
| length('abc') |
+---------------+
| 3 |
+---------------+
MySQL > select length("中国");
+------------------+
| length('中国') |
+------------------+
| 6 |
+------------------+keyword
LENGTH