- Product Introduction
- Purchase Guide
- Getting Started
- Complete Process for New User Activation
- DLC Data Import Guide
- Quick Start with Data Analytics in Data Lake Compute
- Quick Start with Permission Management in Data Lake Compute
- Quick Start with Partition Table
- Enabling Data Optimization
- Cross-Source Analysis of EMR Hive Data
- Standard Engine Configuration Guide
- Operation Guide
- Data Exploration
- Data Management
- Data Job
- Task History
- Insight Management
- Engine Management
- Data Engine Introduction
- SuperSQL Engine
- SuperSQL Engine Overview
- Purchasing Private Data Engine
- Renewing SuperSQL Engine
- Managing Private Data Engine
- Engine-Level Parameter Settings
- Disaster Recovery Cluster
- Engine Kernel Version
- Engine Network Configuration
- Associating Tag with Private Engine Resource
- Engine Local Cache
- Custom Task Scheduling Pool
- Standard Engine
- Ops Management
- Query Script Management
- Development Guide
- Client Access
- Practical Tutorial
- SQL Statement
- SuperSQL Statement
- Overview of SuperSQL Statement
- Unified Statement
- Common Data Types
- DDL Statement
- 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 Statement
- DQL Statement
- Iceberg Table Statement
- Materialized View Statement
- SQL Implicit Conversion
- Functions
- Overview of Standard Spark Statement
- Overview of Standard Presto Statement
- Reserved Words
- SuperSQL Statement
- API Documentation
- 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
- General Reference
- DLC Policy
- Service Level Agreement
- Contact Us
- Product Introduction
- Purchase Guide
- Getting Started
- Complete Process for New User Activation
- DLC Data Import Guide
- Quick Start with Data Analytics in Data Lake Compute
- Quick Start with Permission Management in Data Lake Compute
- Quick Start with Partition Table
- Enabling Data Optimization
- Cross-Source Analysis of EMR Hive Data
- Standard Engine Configuration Guide
- Operation Guide
- Data Exploration
- Data Management
- Data Job
- Task History
- Insight Management
- Engine Management
- Data Engine Introduction
- SuperSQL Engine
- SuperSQL Engine Overview
- Purchasing Private Data Engine
- Renewing SuperSQL Engine
- Managing Private Data Engine
- Engine-Level Parameter Settings
- Disaster Recovery Cluster
- Engine Kernel Version
- Engine Network Configuration
- Associating Tag with Private Engine Resource
- Engine Local Cache
- Custom Task Scheduling Pool
- Standard Engine
- Ops Management
- Query Script Management
- Development Guide
- Client Access
- Practical Tutorial
- SQL Statement
- SuperSQL Statement
- Overview of SuperSQL Statement
- Unified Statement
- Common Data Types
- DDL Statement
- 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 Statement
- DQL Statement
- Iceberg Table Statement
- Materialized View Statement
- SQL Implicit Conversion
- Functions
- Overview of Standard Spark Statement
- Overview of Standard Presto Statement
- Reserved Words
- SuperSQL Statement
- API Documentation
- 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
- General Reference
- DLC Policy
- Service Level Agreement
- Contact Us
In DLC, you can use User-Defined Functions to process and construct data, and it supports function management.
Creating function
1. Log in to the DLC Console, select the service region. The account must have database operation permissions.
2. Go to the Data Management Page, click on the database name for which you need to build the function.
3. Select Function, then click on the Create Function button to enter the function creation menu.
The function package can be uploaded locally or use an existing JAR package on COS. Local uploads only support the JAR format, with a maximum size of 5MB.
You need to select a Spark cluster for execution, which will not incur any costs during the operation.
It is recommended to save the function package to the system for easy management and use. It also supports mounting to a specified COS path.
View function information
1. Log in to the DLC Console. The account must have database operation permissions.
2. Go to the Data Management Page, click on the database name of the function you want to view.
3. Select the function to view its Build Status. If the build fails, you can edit and resubmit.
4. Click on the Function Name to directly view the function details.
Editing Function Information
1. Log in to the DLC Console, select the service region. The account must have database operation permissions.
2. Go to the Data Management Page, click on the database name of the function you want to view.
3. Select a Function and click the Edit button to enter the function information editing page.
The function name, storage method, and upload method cannot be modified at this time. If you need to change this information, please recreate the function.
After modifying the function information, it will be rebuilt. Please proceed with caution.
Deleting function
For functions that no longer need to be managed, you can delete them.
1. Go to the DLC Console, select the service region, log in to an account with database operation permissions.
2. Go to the Data Management Page, click on the database name of the function you want to view.
3. Select the function and click the delete button to delete the function that is no longer needed.
Caution
After deletion, the data under this function will be cleared and cannot be recovered. Please proceed with caution.
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