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MatrixOne Intelligence Docs
MatrixOne Intelligence Docs

MatrixOne Intelligence

  • Home
  • Get Started
    • Quickstart: Create a MatrixOne Intelligence Instance
    • Quickstart: GenAI Workspace
  • Overview
    • MatrixOne Intelligence: an AI-Native Multi-Modal Data Platform
  • GenAI Workspace
    • Overview
    • Workspace Management
    • Data Integration
      • Connectors
      • Data Loading
      • Data Export
    • Data Processing
      • Workflow Templates
        • Workflow Template Overview
        • Multimodal Document RAG Data Preparation
        • Resume Information Extraction
        • Legal Knowledge Fine-Tuning Data Generation
      • Workflow
      • Operation
    • Data Exploration
      • Data Center
      • Data Exploration
    • Alerts
    • User Permissions
      • User Management
      • Role Management
    • Application Development
      • MCP Usage Instructions
      • Deerflow Integration with MOI RAG Service Usage Instructions
    • API
      • Workflow API Documentation
        • API Key
        • Data Integration
        • Data Processing
        • Data Exploration
        • Metrics
      • Quick Start API Documentation
        • Structured Extraction
  • Database Instance
    • MySQL Compatibility
    • Instance Management
      • Create an Instance
        • Create an Instance
        • Create an instance
      • Connect to MatrixOne instance
      • Log in to the database management platform for instance
      • Terminate and restore instances
    • Data Sharing
    • Data Migration and Import
      • Import TPC-H sample data
      • Import object storage data
      • Import local data
      • Write MySQL data to MatrixOne Intelligence using NineData
    • Export data using modump
    • Data Exploration
      • SQL Editor
      • Workbook management
      • Query Analysis
        • SQL Query History
        • Query Analysis
    • Application Development
      • Connect to a Database Instance
        • Client Tools Connection
        • Connect to a MatrixOne instance using a web page
        • Connect using JDBC
        • Connect using Java ORMs
        • Connect with Python
        • Connect using Golang
        • C# Connection
      • Database Schema Design
        • Database Pattern Design Overview
        • Create a database
        • Create a table
        • Create a view
        • Create a temporary table
        • Create secondary index
        • Constraints
          • Constraint Overview
          • NOT NULL Non-empty constraints
          • UNIQUE KEY Unique constraint
          • PRIMARY KEY Primary Key Constraint
          • FOREIGN KEY Constraint
          • AUTO INCREMENT Self-increasing constraint
      • Data Writing
        • INSERT Insert
        • Streaming import
        • Bulk Insert
          • Batch import overview
          • Insert csv file
          • Insert jsonlines file
          • Importing Files from Object Storage
          • Source Insert
        • Update data
        • Delete data
        • Preprocessing
      • Data Reading
        • Single table query
        • Multi-table join query
        • Subquery
        • View
        • Public table expression (CTE)
      • Application Development Examples
        • Java Basic Example
        • Python Basic Example
        • SpringBoot and JPA basic examples
        • SpringBoot and MyBatis basic examples
        • SQLAlchemy Basic Example
        • Django Basic Example
        • Golang Basic Example
        • gorm basic example
        • C# Basic Example
      • Transactions
        • Transaction General Concepts
        • MatrixOne Intelligence Transactions
          • MatrixOne Intelligence transaction overview
          • Explicit transactions
          • Implicit transactions
          • Pessimistic affairs
          • Optimistic Affairs
          • Isolation level
          • MVCC
          • Transaction usage guide
          • Application scenarios
    • Snapshot backup recovery
    • Security
      • Security and Permissions Overview
      • Set IP whitelist
      • Data transmission encryption
      • PrivateLink
      • Role-Based Access Control (RBAC)
    • Monitoring
      • Monitoring indicators
      • Monitor data
    • Alerts
      • Alert
      • Alarm
    • event
    • Reference Manual
      • System Variables
        • System Variables Overview
        • System Variable Parameters
          • SQL Mode
          • Query Result Saving Support
          • Timezone Support
          • Case Sensitivity Support
          • Foreign Key Check Support
          • Query Result Column Name Consistency
          • Illegal Login Restrictions
          • Password Complexity Check
          • Connection Whitelist
        • Custom Variables
      • SQL Structure and Syntax
        • Keywords
        • Comments
      • Data Types
        • Data Types Overview
        • Data Type Conversion
        • Date and Time Types
          • TIMESTAMP and DATETIME Auto-Initialization and Update
          • YEAR Type
        • JSON Data Type
        • BLOB and TEXT Data Types
        • DATALINK Data Type
        • ENUM Type
        • UUID Data Type
        • Fixed-Point Numeric Types (DECIMAL)
        • Vector Data Type
      • SQL Catalog
        • SQL Statement Categories
        • Data Definition Language (DDL)
          • CREATE DATABASE
          • CREATE INDEX
          • CREATE INDEX...USING IVFFLAT
          • CREATE TABLE
          • CREATE TABLE AS SELECT
          • CREATE EXTERNAL TABLE
          • CREATE PITR
          • CREATE PUBLICATION
          • CREATE SEQUENCE
          • CREATE STAGE
          • CREATE...FROM...PUBLICATION...
          • CREATE VIEW
          • CREATE FUNCTION...LANGUAGE SQL AS
          • CREATE SOURCE
          • CREATE DYNAMIC TABLE
          • CREATE SNAPSHOT
          • ALTER TABLE
          • ALTER TABLE ... ALTER REINDEX
          • ALTER PITR
          • ALTER PUBLICATION
          • ALTER SEQUENCE
          • ALTER STAGE
          • ALTER VIEW
          • DROP DATABASE
          • DROP INDEX
          • DROP TABLE
          • DROP PITR
          • DROP PUBLICATION
          • DROP SEQUENCE
          • DROP STAGE
          • DROP SNAPSHOT
          • DROP VIEW
          • DROP FUNCTION
          • TRUNCATE TABLE
          • RENAME TABLE
          • RESTORE PITR
          • RESTORE ACCOUNT
          • RESTORE SNAPSHOT
          • PARTITION
        • Data Manipulation Language (DML)
          • INSERT
          • INSERT INTO SELECT
          • DELETE
          • UPDATE
          • LOAD DATA INFILE
          • LOAD DATA INLINE
          • UPSERT
            • UPSERT Overview
            • INSERT ON DUPLICATE KEY UPDATE
            • INSERT IGNORE
            • REPLACE
          • Information Functions
            • LAST_QUERY_ID()
            • LAST_INSERT_ID()
        • Data Query Language (DQL)
          • SELECT
          • SUBQUERY
            • SUBQUERY Overview
            • Derived Tables
            • Subqueries with Comparison Operators
            • SUBQUERY with ANY or SOME
            • SUBQUERY with ALL
            • SUBQUERY with EXISTS
            • SUBQUERY with IN
          • JOIN
            • JOIN Overview
            • INNER JOIN
            • LEFT JOIN
            • RIGHT JOIN
            • FULL JOIN
            • OUTER JOIN
            • NATURAL JOIN
          • With CTE
          • Union Queries
            • UNION
            • INTERSECT
            • MINUS
            • UNION / INTERSECT / MINUS Overview
        • Data Control Language (DCL)
          • CREATE ROLE
          • CREATE USER
          • ALTER USER
          • DROP USER
          • DROP ROLE
          • GRANT
          • REVOKE
        • Others
          • SHOW
            • SHOW ACCOUNTS
            • SHOW DATABASES
            • SHOW CREATE TABLE
            • SHOW CREATE VIEW
            • SHOW CREATE PUBLICATION
            • SHOW TABLES
            • SHOW INDEX
            • SHOW COLLATION
            • SHOW COLUMNS
            • SHOW FUNCTION STATUS
            • SHOW GRANT
            • SHOW PROCESSLIST
            • SHOW PUBLICATIONS
            • SHOW PITR
            • SHOW ROLES
            • SHOW SEQUENCES
            • SHOW SNAPSHOTS
            • SHOW STAGES
            • SHOW SUBSCRIPTIONS
            • SHOW VARIABLES
          • SET
            • SET ROLE
          • USE
            • USE DATABASE
          • KILL
          • Prepared
            • PREPARE
            • EXECUTE
            • DEALLOCATE
          • Explain
            • Explain
            • Explain 输出格式
            • Explain Analyze
          • Partition
            • MO Partition Support
      • Operators
        • INTERVAL
        • Operators
          • Operators Overview
          • Operator Precedence
          • Arithmetic Operators
            • Arithmetic Operators Overview
            • %,MOD
            • *
            • +
            • -
            • -
            • /
            • DIV
          • Assignment Operators
            • Assignment Operators Overview
            • =
          • Bitwise Operators
            • Bitwise Operators Overview
            • &
            • >>
            • <<
            • ^
            • |
            • ~
          • Cast Functions and Operators
            • Cast Functions and Operators Overview
            • BINARY
            • CAST
            • CONVERT
            • DECODE
            • ENCODE
            • SERIAL
            • SERIAL_FULL
          • Comparison Functions and Operators
            • Comparison Functions and Operators Overview
            • >
            • >=
            • <
            • <>,!=
            • <=
            • =
            • BETWEEN ... AND ...
            • IN
            • IS
            • IS NOT
            • IS NOT NULL
            • IS NULL
            • ISNULL
            • ILIKE
            • LIKE
            • NOT BETWEEN ... AND ...
            • NOT IN
            • NOT LIKE
            • COALESCE
          • Control Flow Functions
            • Control Flow Functions Overview
            • CASE WHEN
            • IF
            • IFNULL
            • NULLIF
          • Logical Operators
            • Logical Operators Overview
            • AND,&&
            • NOT,!
            • OR
            • XOR
      • Functions
        • Function List
        • Aggregate Functions
          • ANY_VALUE
          • AVG
          • BITMAP
          • BIT_AND
          • BIT_OR
          • BIT_XOR
          • COUNT
          • GROUP_CONCAT
          • MAX
          • MEDIAN
          • MIN
          • STDDEV_POP
          • SUM
          • VARIANCE
          • VAR_POP
        • Date and Time Functions
          • CONVERT_TZ()
          • CURDATE()
          • CURRENT_TIMESTAMP()
          • DATE()
          • DATE_ADD()
          • DATE_FORMAT()
          • DATE_SUB()
          • DATEDIFF()
          • DAY()
          • DAYOFYEAR()
          • EXTRACT()
          • HOUR()
          • FROM_UNIXTIME
          • MINUTE()
          • MONTH()
          • NOW()
          • SECOND()
          • STR_TO_DATE()
          • SYSDATE()
          • TIME()
          • TIMEDIFF()
          • TIMESTAMP()
          • TIMESTAMPDIFF()
          • TO_DATE()
          • TO_DAYS()
          • TO_SECONDS()
          • UNIX_TIMESTAMP
          • UTC_TIMESTAMP()
          • WEEK()
          • WEEKDAY()
          • YEAR()
        • Mathematical Functions
          • ABS()
          • ACOS()
          • ATAN()
          • CEIL()
          • CEILING()
          • COS()
          • COT()
          • EXP()
          • FLOOR()
          • LN()
          • LOG()
          • LOG2()
          • LOG10()
          • PI()
          • POWER()
          • ROUND()
          • RAND()
          • SIN()
          • SINH()
          • TAN()
        • String Functions
          • BIN()
          • BIT_LENGTH()
          • CHAR_LENGTH()
          • CONCAT()
          • CONCAT_WS()
          • EMPTY()
          • ENDSWITH()
          • FIELD()
          • FIND_IN_SET()
          • FORMAT()
          • FROM_BASE64()
          • HEX()
          • INSTR()
          • LCASE()
          • LEFT()
          • LENGTH()
          • LOCATE()
          • LOWER()
          • LPAD()
          • LTRIM()
          • MD5()
          • OCT()
          • REPEAT()
          • REVERSE()
          • RPAD()
          • RTRIM()
          • SHA1()/SHA()
          • SHA2()
          • SPACE()
          • SPLIT_PART()
          • STARTSWITH()
          • SUBSTRING()
          • SUBSTRING_INDEX()
          • TO_BASE64()
          • TRIM()
          • UCASE()
          • UNHEX()
          • UPPER()
          • Regular Expression Overview
            • 正则表达式概述
            • NOT REGEXP
            • REGEXP_INSTR()
            • REGEXP_LIKE()
            • REGEXP_REPLACE()
            • REGEXP_SUBSTR()
        • Vector Functions
          • Basic Operators
          • Mathematical Calculations
          • CLUSTER_CENTERS()
          • COSINE_SIMILARITY()
          • COSINE_DISTANCE()
          • INNER_PRODUCT()
          • L1_NORM()
          • L2_NORM()
          • L2_DISTANCE()
          • NORMALIZE_L2()
          • SUBVECTOR()
          • VECTOR_DIMS()
        • Table Functions
          • GENERATE_SERIES()
          • UNNEST()
        • Window Functions
          • DENSE_RANK()
          • RANK()
          • ROW_NUMBER()
        • JSON Functions
          • JQ()
          • JSON_EXTRACT()
          • JSON_EXTRACT_FLOAT64()
          • JSON_EXTRACT_STRING()
          • JSON_QUOTE()
          • JSON_ROW()
          • JSON_UNQUOTE()
          • TRY_JQ()
        • Other Functions
          • LOAD_FILE
          • SAVE_FILE
          • SAMPLE
          • SERIAL_EXTRACT
          • SLEEP
          • STAGE_LIST
          • UUID()
        • System Operations Functions
          • CURRENT_ROLE_NAME()
          • CURRENT_ROLE()
          • CURRENT_USER_NAME()
          • CURRENT_USER()
          • VERSION()
          • PURGE_LOG()
      • System Tables Catalog
      • Permission Categories List
      • Usage Limitations
        • MatrixOne JDBC Feature Support List
        • MatrixOne DDL Statement Partition Support
        • MatrixOne Load Data Support
    • Glossary
    • Billing
      • Top up
      • Account Overview
      • Coupons Management
      • Revenue and expenditure details
      • Bill details
      • Price Details
        • Pricing: Serverless production instances
        • Pricing: Standard instances
      • Renewing an instance
      • Cash overdraft
      • Configuration change
      • Cancellation policy
  • Help
    • FAQs
      • MatrixOne Intelligence FAQs
      • SQL FAQs
    • Related Agreements
      • Privacy Policy
      • Terms of Service
      • Service Level Agreement
    • Technical Support
  • Release Notes
    • 2026
    • 2025
    • 2024
    • 2023
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System Operations Functions¶

  • CURRENT_ROLE_NAME()
  • CURRENT_ROLE()
  • CURRENT_USER_NAME()
  • CURRENT_USER()
  • VERSION()
  • PURGE_LOG()
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CURRENT_ROLE_NAME()
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