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- AttachUserPolicy
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- Database APIs
- Data Source Connection APIs
- Data Optimization APIs
- Data Engine APIs
- Data Types
- Error Codes
- 通用类参考
- DLC 政策
- 服务等级协议
- 联系我们
- 产品简介
- 购买指南
- 快速入门
- 操作指南
- 开发指南
- 客户端访问
- 实践教程
- SQL 语法
- SuperSQL 语法
- SuperSQL 语法概览
- 统一语法
- 常用数据类型
- DDL 语法
- CREATE DATABASE
- SHOW DATABASES
- DESCRIBE DATABASE
- ALTER DATABASE
- DROP DATABASE
- CREATE TABLE
- REPLACE TABLE AS SELECT
- SHOW TABLES
- SHOW CREATE TABLE
- SHOW TBLPROPERTIES
- DESCRIBE TABLE
- SHOW COLUMNS IN TABLE
- ALTER TABLE
- ALTER TABLE ADD COLUMNS
- ALTER TABLE ADD COLUMN AFTER/FIRST
- ALTER TABLE DROP COLUMN
- ALTER TABLE ADD PARTATION
- SHOW PARTITIONS
- ALTER TABLE DROP PARTITION
- ALTER TABLE ADD PARTITION FIELD
- ALTER TABLE DROP PARTITION FIELD
- ALTER TABLE ... RENAME COLUMN
- ALTER TABLE SET TBLPROPERTIES
- ALTER TABLE SET LOCATION
- ALTER TABLE ... WRITE ORDERED BY
- ALTER TABLE ... WRITE DISTRIBUTED BY PARTITION
- ALTER TABLE ... SET IDENTIFIER FIELDS
- ALTER TABLE ... DROP IDENTIFIER FIELDS
- MSCK REPAIR TABLE
- ANALYZE TABLES
- DROP TABLE
- EXPLAIN
- CALL STATEMENT
- CREATE VIEW AS
- SHOW VIEWS
- DESCRIBE VIEW
- SHOW CREATE VIEW
- SHOW COLUMNS IN VIEW
- ALTER VIEW
- DROP VIEW
- CREATE FUNCTION
- SHOW FUNCTION
- DROP FUNCTION
- DML 语法
- DQL 语法
- Iceberg 表语法
- 物化视图语法
- SQL 隐式转换
- 函数
- 标准 Spark 语法概览
- 标准 Presto 语法概览
- 保留字
- SuperSQL 语法
- API 文档
- History
- Introduction
- API Category
- Making API Requests
- Data Table APIs
- Task APIs
- CreateSparkSessionBatchSQL
- CancelSparkSessionBatchSQL
- CancelTask
- CreateResultDownload
- CreateSparkAppTask
- CreateTask
- CreateTasks
- DeleteSparkApp
- DescribeEngineUsageInfo
- DescribeResultDownload
- DescribeSparkAppTasks
- DescribeTaskResult
- DescribeTasks
- QueryTaskCostDetail
- CreateSparkApp
- DescribeSparkAppJob
- DescribeSparkSessionBatchSqlLog
- ModifySparkApp
- DescribeSparkAppJobs
- ModifySparkAppBatch
- DescribeTaskStatistics
- DescribeQuery
- DescribeJobs
- DescribeJob
- Metadata APIs
- Service Configuration APIs
- CreateCHDFSBindingProduct
- DeleteCHDFSBindingProduct
- DescribeOtherCHDFSBindingList
- CreateStoreLocation
- DescribeStoreLocation
- ModifyDataEngineDescription
- RollbackDataEngineImage
- SwitchDataEngine
- SwitchDataEngineImage
- UpgradeDataEngineImage
- DeleteThirdPartyAccessUser
- DescribeDataEngineImageVersions
- DescribeSubUserAccessPolicy
- DescribeThirdPartyAccessUser
- RegisterThirdPartyAccessUser
- RestartDataEngine
- UpdateUserDataEngineConfig
- UpdateDataEngineConfig
- Permission Management APIs
- AddUsersToWorkGroup
- AttachUserPolicy
- AttachWorkGroupPolicy
- BindWorkGroupsToUser
- CreateUser
- CreateWorkGroup
- DeleteUser
- DeleteUsersFromWorkGroup
- DeleteWorkGroup
- DescribeUserInfo
- DescribeUserRoles
- DescribeUserType
- DescribeUsers
- DescribeWorkGroupInfo
- DescribeWorkGroups
- DetachUserPolicy
- DetachWorkGroupPolicy
- ModifyUser
- ModifyUserType
- ModifyWorkGroup
- UnbindWorkGroupsFromUser
- UpdateRowFilter
- CheckGrantedPermission
- Database APIs
- Data Source Connection APIs
- Data Optimization APIs
- Data Engine APIs
- Data Types
- Error Codes
- 通用类参考
- DLC 政策
- 服务等级协议
- 联系我们
BIT_COUNT
函数语法：
BIT_COUNT(<expr>bigint|boolean)
支持引擎：SparkSQL 、Presto
使用说明：将
expr设置为无符号64位整数，返回其位为1的个数，如果参数为 NULL，则返回 NULL。返回类型：
integer示例：
> SELECT bit_count(5);2
BIT_GET
函数语法：
BIT_GET(<expr>bigint|boolean,<pos>integer)
支持引擎：SparkSQL 、Presto
使用说明：返回指定位置位（0或1）的值。位置从右到左编号，从零开始。位置参数不能为负。
返回类型：
integer示例：
> SELECT bit_get(11, 0);1> SELECT bit_get(11, 2);0
GETBIT
函数语法：
GETBIT(<expr>bigint|boolean,<pos>integer)
支持引擎：SparkSQL 、Presto
使用说明：返回指定位置位（0或1）的值。位置从右到左编号，从零开始。位置参数不能为负。
返回类型：
integer示例：
> SELECT getbit(11, 0);1> SELECT getbit(11, 2);0
是
否
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