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    mo_br Backup and Recovery
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- Performance Tuning
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    Understanding the Query Execution Plan
    
    Query Execution Plan Overview
    
    Using EXPLAIN to learn the execution plan
    
    Explain Statements Using JOIN
    
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  - Performance tuning best practices
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    SQL Mode
    
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  - SQL Language Structure
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    Keywords
    
    Comments
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  - SQL Statements
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    Type of SQL Statements
    
    Data Definition Language
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    CREATE DATABASE
    
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    CREATE FUNCTION...LANGUAGE SQL AS
    
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    ALTER TABLE
    
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    TRUNCATE TABLE
    
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    Data Manipulation Language
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    INSERT
    
    INSERT INTO SELECT
    
    DELETE
    
    UPDATE
    
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    LOAD DATA INLINE
    
    UPSERT
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    UPSERT Overview
    
    INSERT ON DUPLICATE KEY UPDATE
    
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    REPLACE
    
    Information Functions
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    LAST_QUERY_ID()
    
    LAST_INSERT_ID()
    
    Data Query Language
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    SELECT
    
    SUBQUERY
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    SUBQUERY Overview
    
    Derived Tables
    
    Comparisons Using Subqueries
    
    SUBQUERY with ANY or SOME
    
    SUBQUERY with ALL
    
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    JOIN
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    JOIN Overview
    
    CROSS JOIN
    
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    LEFT JOIN
    
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    With CTE
    
    Combining Queries
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    UNION
    
    INTERSECT
    
    MINUS
    
    Data Control Language
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    CREATE ACCOUNT
    
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    CREATE USER
    
    ALTER USER
    
    DROP ACCOUNT
    
    DROP USER
    
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    GRANT
    
    REVOKE
    
    Other
    Other
    
    SHOW
    SHOW
    
    SHOW ACCOUNTS
    
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    SHOW CREATE TABLE
    
    SHOW CREATE VIEW
    
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    SHOW TABLES
    
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    SHOW GRANT
    
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    SHOW SEQUENCES
    
    SHOW STAGE
    
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    SHOW VARIABLES
    
    SET
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    KILL
    
    Prepared Statements
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    PREPARE
    
    EXECUTE
    
    DEALLOCATE
    
    Explain
    Explain
    
    EXPLAIN
    
    EXPLAIN Output Format
    
    Explain Analyze
    
    Explain Prepared
  - Functions and Operators
    Functions and Operators
    
    Operators
    Operators
    
    INTERVAL
    
    OPERATORS
    OPERATORS
    
    OPERATORS Overview
    
    OPERATORS Precedence
    
    Arithmetic Operators
    Arithmetic Operators
    
    Arithmetic Operators Overview
    
    %,MOD
    
    *
    
    +
    
    -
    
    -
    
    /
    
    DIV
    
    Assignment Operators
    Assignment Operators
    
    Assignment Operators Overview Assignment Operators Overview
    Table of contents
    
    Assignment Operators Overview
    
    =
    
    Bit Functions and Operators
    Bit Functions and Operators
    
    Bit Functions and Operators Overview
    
    &
    
    >>
    
    <<
    
    ^
    
    |
    
    ~
    
    Cast Functions and Operators
    Cast Functions and Operators
    
    Cast Functions and Operators Overview
    
    BINARY
    
    CAST
    
    CONVERT
    
    SERIAL
    
    SERIAL_FULL
    
    Comparison Functions and Operators
    Comparison Functions and Operators
    
    Comparison Functions and Operators Overview
    
    >
    
    >=
    
    <
    
    <>,!=
    
    <=
    
    =
    
    BETWEEN ... AND ...
    
    IN
    
    IS
    
    IS NOT
    
    IS NOT NULL
    
    IS NULL
    
    ILIKE
    
    ISNULL
    
    LIKE
    
    NOT BETWEEN ... AND ...
    
    NOT IN
    
    NOT LIKE
    
    COALESCE
    
    Flow Control Functions
    Flow Control Functions
    
    Flow Control Functions Overview
    
    CASE WHEN
    
    IF
    
    IFNULL
    
    NULLIF
    
    Logical Operators
    Logical Operators
    
    Logical Operators Overview
    
    AND,&&
    
    NOT,!
    
    OR
    
    XOR
    
    Functions
    Functions
    
    Summary Table of Functions
    
    Aggregate Functions
    Aggregate Functions
    
    ANY_VALUE
    
    AVG
    
    BITMAP
    
    BIT_AND
    
    BIT_OR
    
    BIT_XOR
    
    COUNT
    
    GROUP_CONCAT
    
    MAX
    
    MEDIAN
    
    MIN
    
    STDDEV_POP
    
    SUM
    
    VARIANCE
    
    VAR_POP
    
    Datetime
    Datetime
    
    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
    Mathematical
    
    ABS()
    
    ACOS()
    
    ATAN()
    
    CEIL()
    
    CEILING()
    
    COS()
    
    COT()
    
    EXP()
    
    FLOOR()
    
    LN()
    
    LOG()
    
    LOG2()
    
    LOG10()
    
    PI()
    
    POWER()
    
    ROUND()
    
    RAND()
    
    SIN()
    
    SINH()
    
    TAN()
    
    String
    String
    
    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 Expressions
    Regular Expressions
    
    Regular Expressions Overview
    
    NOT REGEXP
    
    REGEXP_INSTR()
    
    REGEXP_LIKE()
    
    REGEXP_REPLACE()
    
    REGEXP_SUBSTR()
    
    Vector
    Vector
    
    Basic Operator
    
    Mathematical Calculations
    
    CLUSTER_CENTERS()
    
    COSINE_SIMILARITY()
    
    COSINE_DISTANCE()
    
    INNER_PRODUCT()
    
    L1_NORM()
    
    L2_NORM()
    
    L2_DISTANCE()
    
    NORMALIZE_L2()
    
    SUBVECTOR()
    
    VECTOR_DIMS()
    
    Table
    Table
    
    UNNEST()
    
    Vector
    Vector
    
    Basic Operator
    
    COSINE_SIMILARITY()
    
    COSINE_DISTANCE()
    
    INNER_PRODUCT()
    
    L1_NORM()
    
    L2_NORM()
    
    L2_DISTANCE()
    
    Mathematical Calculations
    
    VECTOR_DIMS()
    
    NORMALIZE_L2()
    
    Window Functions
    Window Functions
    
    DENSE_RANK()
    
    RANK()
    
    ROW_NUMBER()
    
    JSON Functions
    
    Other Functions
    Other Functions
    
    SAMPLE
    
    SERIAL_EXTRACT
    
    SLEEP
    
    UUID()
    
    System OPS Functions
    System OPS Functions
    
    CURRENT_ROLE_NAME()
    
    CURRENT_ROLE()
    
    CURRENT_USER_NAME()
    
    CURRENT_USER()
    
    PURGE_LOG()
  - System Paramaters
    System Paramaters
    
    System Parameters Overview
    
    Standalone Common Parameters Configuration
    
    Distributed Common Parameters Configuration
  - MatrixOne Catalog
  - Privilege Control Types
  - Limitations
    Limitations
    
    JDBC supported features list
    
    Partitioning supported features list
  - MatrixOne Directory Structure
  - MatrixOne Tools
    MatrixOne Tools
    
    mo_ctl stand-alone tool
    
    mo_ctl distributed Tools
    
    mo_datax_writer tool
    
    mo_ssb_open tool
    
    mo_tpch_open tool
    
    mo_ts_perf_test tool
- Troubleshooting
  Troubleshooting
- FAQs
  FAQs
- Release Notes
  Release Notes
  - Release Timeline
  - v24.1.2.4
  - v24.1.2.3
  - v24.1.2.2
  - v24.1.2.1
  - v24.1.2.0
  - v24.1.1.3
  - v24.1.1.2
  - v24.1.1.1
  - v23.1.1.0
  - v23.1.0.2
  - v23.1.0.1
  - v23.1.0.0
  - v23.1.0.0-rc2
  - v23.1.0.0-rc1
  - v23.0.8.0
  - v23.0.7.0
  - v22.0.6.0
  - v22.0.5.1
  - v22.0.5.0
  - v22.0.4.0
  - v22.0.3.0
  - v22.0.2.0
  - v21.0.1.0
- Glossary
- Contribution Guide
  Contribution Guide
  - Make Your First Contribution
  - How to Contribute
    How to Contribute
    
    Types of Contributions
    
    Preparation
    
    Report an Issue
    
    Contribute Code
    
    Review a Pull Request
    
    Contribute Documentation
    
    Make a Design
  - Code Style
    Code Style
    
    Code of Conduct
    
    Code Comment Style
    
    Commit & Pull Request Style

Table of contents

Assignment Operators Overview

Assignment Operators Overview

Assignment Operators Overview

Name	Description
=	Equal operator

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