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MySQL 8.4 Reference Manual Including MySQL NDB Cluster 8.4
30.4.5 sys Schema Stored Functions
The following sections describe
sys schema stored functions.
sys Schema Stored Functions
- 第 1 组（2 – C）
- 2-Digit Years in Dates
- About This Manual
- Access Control, Stage 2: Request Verification
- Accessing the Process List
- Account User Names and Passwords
- Adaptive Hash Index
- Adding NDB Cluster Data Nodes Online
- Administrative and Utility Programs
- Appendix C Indexes
- Argument Handling by Spatial Functions
- Asynchronous Replication Channel Failover Functions
- Automatic Initialization and Updating for TIMESTAMP and DATETIME
- B.3.1 How to Determine What Is Causing a Problem
- B.3.5 Optimizer-Related Issues
- B.3.7 Known Issues in MySQL
- B.3 Problems and Common Errors
- Before You Begin
- Benefits of Using InnoDB Tables
- Best Practices for InnoDB Tables
- Buffer Pool
- Bulk Data Loading for InnoDB Tables
- Bulk Data Loading for MyISAM Tables
- Caching of Prepared Statements and Stored Programs
- Change Buffer
- Changes in MySQL 8.4
- Changing GTID Mode on Online Servers
- Changing the SELinux Mode
- Chapter 10 Optimization
- Chapter 11 Language Structure
- Chapter 13 Data Types
- Chapter 15 SQL Statements
- Chapter 16 MySQL Data Dictionary
- Chapter 18 Alternative Storage Engines
- Chapter 19 Replication
- Chapter 1 General Information
- Chapter 21 MySQL Shell
- Chapter 22 Using MySQL as a Document Store
- Chapter 23 InnoDB Cluster
- Chapter 24 InnoDB ReplicaSet
- Chapter 25 MySQL NDB Cluster 8.4
- Chapter 26 Partitioning
- Chapter 27 Stored Objects
- Chapter 28 INFORMATION_SCHEMA Tables
- Chapter 29 MySQL Performance Schema
- Chapter 2 Installing MySQL
- Chapter 30 MySQL sys Schema
- Chapter 32 MySQL Enterprise Edition
- Chapter 33 MySQL Workbench
- Chapter 34 MySQL on OCI Marketplace
- Chapter 35 Telemetry
- Chapter 3 Upgrading MySQL
- Chapter 5 Tutorial
- Chapter 6 MySQL Programs
- Chapter 7 MySQL Server Administration
- Chapter 8 Security
- Character Set and Collation of Function Results
- Check if SELinux is Enabled
- Checking X Plugin Installation
- Choosing an Installation Package
- Client Programming Security Guidelines
- 第 2 组（C – D）
- COLUMNS Partitioning
- Commands in the NDB Cluster Management Client
- Common Replication Administration Tasks
- Comparison of B-Tree and Hash Indexes
- Compound Statement Syntax
- Configuration of NDB Cluster
- Configuration: Manually
- Configuration: Using MySQL Configurator
- Configuring InnoDB for Read-Only Operation
- Configuring InnoDB I/O Capacity
- Configuring Metrics Telemetry
- Configuring MySQL to Use Encrypted Connections
- Configuring Network Access
- Configuring Parallel Threads for Online DDL Operations
- Configuring Replication
- Configuring SSL Library Support
- Configuring the Merge Threshold for Index Pages
- Configuring the Server
- Configuring Trace Telemetry
- Connecting
- Connecting to MySQL Remotely from Windows with SSH
- Connection Compression with X Plugin
- Connection Transport Protocols
- Conversion Between Date and Time Types
- Creating a Table
- Creating and Using a Database
- Creating Spatial Columns
- Creating Spatial Indexes
- CSV Limitations
- Cursors
- Data Dictionary Limitations
- Data Dictionary Schema
- Data Dictionary Usage Differences
- Data Type Default Values
- Data Type Storage Requirements
- Data-Masking Components Versus the Data-Masking Plugin
- Date and Time Data Type Syntax
- Date and Time Data Types
- Date and Time Functions
- Date and Time Literals
- Deadlocks in InnoDB
- DEALLOCATE PREPARE Statement
- Debugging a MySQL Client
- Debugging a MySQL Server
- DECIMAL Data Type Characteristics
- DECLARE Statement
- Defining Stored Programs
- Defragmenting a Table
- Delayed Replication
- DELETE Statement
- Deploying MySQL EE on Oracle Cloud Infrastructure
- Deploying MySQL on Linux with Docker Containers
- Descending Indexes
- DESCRIBE Statement
- Determining What Is Instrumented
- Dictionary Object Cache
- Disabling X Plugin
- Displaying Traces in Other Applications
- DO Statement
- Document Store Concepts
- 第 3 组（D – E）
- Documents and Collections
- Documents and Collections（2）
- Documents in Tables
- Documents in Tables（2）
- Doublewrite Buffer
- Download and Import world_x Database
- Download and Import world_x Database（2）
- DROP DATABASE Statement
- DROP EVENT Statement
- DROP FUNCTION Statement
- DROP LOGFILE GROUP Statement
- DROP PROCEDURE and DROP FUNCTION Statements
- DROP SERVER Statement
- DROP SPATIAL REFERENCE SYSTEM Statement
- DROP TABLE Statement
- DROP TABLESPACE Statement
- DROP TRIGGER Statement
- DROP VIEW Statement
- Dumping Data in Delimited-Text Format with mysqldump
- Dumping Data in SQL Format with mysqldump
- Enabling Automatic InnoDB Configuration for a Dedicated MySQL Server
- Enabling InnoDB Monitors
- Encrypted Connection TLS Protocols and Ciphers
- Encrypting Binary Log Files and Relay Log Files
- Encryption and Compression Functions
- enterprise-encryption
- enterprise-encryption-configuring
- enterprise-encryption-function-reference
- enterprise-encryption-functions
- enterprise-encryption-installation
- enterprise-encryption-usage
- enum
- environment-variables
- error-creating-innodb
- error-handling
- error-interfaces
- error-log
- error-log-components
- error-message-elements
- error-message-language
- estimating-performance
- Event Pre-Filtering
- Event Reports Generated in NDB Cluster
- event-scheduler
- event-scheduler-thread-states
- events-configuration
- events-metadata
- events-overview
- events-privileges
- events-status-info
- events-syntax
- Examining Server Thread (Process) Information
- Example
- Example Consumer Configurations
- example-auto-increment
- example-foreign-keys
- example-maximum-column
- example-maximum-column-group
- example-maximum-column-group-row
- example-maximum-row
- 第 4 组（E – F）
- example-storage-engine
- example-user-variables
- examples
- except
- Exchanging Partitions and Subpartitions with Tables
- execute
- execution-plan-information
- expired-password-handling
- explain
- explain-extended
- explain-for-connection
- explain-output
- Expression Handling
- extended-show
- extensions-to-ansi
- external-locking
- faqs-c-api
- faqs-cjk
- faqs-connectors-apis
- faqs-general
- faqs-information-schema
- faqs-innodb-change-buffer
- faqs-migration
- faqs-mysql-cluster
- faqs-replication
- faqs-security
- faqs-sql-modes
- faqs-storage-engines
- faqs-stored-procs
- faqs-tablespace-encryption
- faqs-thread-pool
- faqs-triggers
- faqs-views
- faqs-virtualization
- features
- federated-create
- federated-description
- federated-storage-engine
- federated-storage-engine-resources
- federated-usagenotes
- fetching-spatial-data
- File Space Management
- fips-mode
- firewall
- firewall-information-schema-tables
- fixed-point-types
- floating-point-types
- flow-control-functions
- flow-control-statements
- forcing-innodb-recovery
- foreign-key-optimization
- fractional-seconds
- full-text-adding-collation
- fulltext-boolean
- fulltext-fine-tuning
- fulltext-natural-language
- fulltext-query-expansion
- fulltext-restrictions
- fulltext-search-mecab
- fulltext-search-ngram
- 第 5 组（F – G）
- fulltext-stopwords
- function-loading
- function-resolution
- functions
- Functions That Create JSON Values
- Functions That Modify JSON Values
- Functions That Return JSON Value Attributes
- Functions That Search JSON Values
- Functions That Test Spatial Relations Between Geometry Objects
- General Information
- General Notes on Installing MySQL on macOS
- General Requirements for NDB Cluster Replication
- general-information-schema-tables
- general-installation-issues
- general-security-issues
- general-thread-states
- generated-column-index-optimizations
- Generating MySQL Doxygen Documentation Content
- geometry-well-formedness-validity
- getting-information
- getting-mysql
- gis-data-formats
- gis-format-conversion-functions
- gis-mysql-specific-functions
- gis-property-functions
- gis-wkb-functions
- gis-wkt-functions
- glossary
- grant-tables
- group-by-functional-dependence
- group-by-handling
- group-by-modifiers
- group-replication
- group-replication-background
- group-replication-configuring-online-group
- group-replication-connection-security
- group-replication-consistency-guarantees
- group-replication-deploying-in-multi-primary-or-single-primary-mode
- group-replication-deploying-in-single-primary-mode
- group-replication-deploying-locally
- group-replication-distributed-recovery
- group-replication-distributed-recovery-securing
- group-replication-enterprise-backup
- group-replication-fine-tuning-the-group-communication-thread
- group-replication-flow-control
- group-replication-frequently-asked-questions
- group-replication-functions
- group-replication-getting-started
- group-replication-gtids
- group-replication-ip-address-permissions
- group-replication-ipv6
- group-replication-limitations
- group-replication-monitoring
- group-replication-network-partitioning
- group-replication-offline-upgrade
- group-replication-online-upgrade
- group-replication-online-upgrade-combining-versions
- group-replication-options
- group-replication-performance
- group-replication-performance-message-fragmentation
- 第 6 组（G – I）
- group-replication-performance-xcom-cache
- group-replication-plugin-architecture
- group-replication-replication-group-member-stats
- group-replication-replication-group-members
- group-replication-replication-technologies
- group-replication-requirements
- group-replication-requirements-and-limitations
- group-replication-responses-failure
- group-replication-restarting-group
- group-replication-secure-socket-layer-support-ssl
- group-replication-security
- group-replication-server-states
- group-replication-single-consensus-leader
- group-replication-status-variables
- group-replication-system-variables
- group-replication-upgrade
- group-replication-use-cases
- gtid-functions
- handler
- Handling an Unexpected Halt of a Replica
- HASH Partitioning
- help
- hexadecimal-literals
- history
- How MySQL Partitioning Handles NULL
- How MySQL Uses Indexes
- How Servers Evaluate Replication Filtering Rules
- How to Repair MyISAM Tables
- How to Report Replication Bugs or Problems
- ibd2sdi
- Identifier Length Limits
- Identifier Qualifiers
- identifier-case-sensitivity
- Implementing Failover with NDB Cluster Replication
- IMPORT TABLE Statement
- Importing Data Into MySQL Cluster
- Improving Replication Performance
- Index Hints
- Indexed Lookups from TIMESTAMP Columns
- information-schema-connection-control-table-reference
- information-schema-resource-groups-table
- INFORMATION_SCHEMA and Data Dictionary Integration
- INFORMATION_SCHEMA Firewall Table Reference
- INFORMATION_SCHEMA General Table Reference
- INFORMATION_SCHEMA InnoDB Table Reference
- INFORMATION_SCHEMA InnoDB Tables
- INFORMATION_SCHEMA Table Reference
- INFORMATION_SCHEMA Tables for NDB Cluster
- INFORMATION_SCHEMA Thread Pool Table Reference
- INFORMATION_SCHEMA Thread Pool Tables
- Initial Configuration of NDB Cluster
- Initial Startup of NDB Cluster
- Initializing the Data Directory
- innochecksum — Offline InnoDB File Checksum Utility
- InnoDB and MyISAM Index Statistics Collection
- InnoDB and MySQL Replication
- InnoDB and Online DDL
- InnoDB and the ACID Model
- InnoDB Architecture
- InnoDB Backup
- 第 7 组（I – I）
- InnoDB Backup and Recovery
- InnoDB Buffer Pool Configuration
- InnoDB Buffer Pool Optimization
- InnoDB Checkpoints
- InnoDB Configuration
- InnoDB Data-at-Rest Encryption
- InnoDB Disk I/O
- InnoDB Disk I/O and File Space Management
- InnoDB Error Handling
- InnoDB INFORMATION_SCHEMA Buffer Pool Tables
- InnoDB INFORMATION_SCHEMA Metrics Table
- InnoDB INFORMATION_SCHEMA Schema Object Tables
- InnoDB INFORMATION_SCHEMA Tables
- InnoDB INFORMATION_SCHEMA Temporary Table Info Table
- InnoDB INFORMATION_SCHEMA Transaction and Locking Information
- InnoDB Integration with MySQL Performance Schema
- InnoDB Limits
- InnoDB Locking
- InnoDB Locking and Transaction Model
- InnoDB Monitor Types
- InnoDB Monitors
- InnoDB Multi-Versioning
- InnoDB Recovery
- InnoDB Restrictions and Limitations
- InnoDB Row Formats
- InnoDB Standard Monitor and Lock Monitor Output
- InnoDB Startup Configuration
- InnoDB Startup Options and System Variables
- InnoDB Transaction Model
- InnoDB Troubleshooting
- innodb-information-schema-fulltext_index-tables
- innodb-performance-multiple_io_threads
- innodb-performance-spin_lock_polling
- innodb-performance-thread_concurrency
- INSERT Statement
- Installation Layouts
- Installation of NDB Cluster on Linux
- Installing and Uninstalling Plugins
- Installing and Using the MySQL Launch Daemon
- Installing and Using the MySQL Preference Pane
- Installing MySQL from Source
- Installing MySQL on Linux
- Installing MySQL on Linux from the Native Software Repositories
- Installing MySQL on Linux Using Debian Packages from Oracle
- Installing MySQL on Linux Using the MySQL APT Repository
- Installing MySQL on Linux Using the MySQL Yum Repository
- Installing MySQL on Linux with Juju
- Installing MySQL on macOS
- Installing MySQL on macOS Using Native Packages
- Installing MySQL on Microsoft Windows
- Installing MySQL on Solaris
- Installing MySQL on Solaris Using a Solaris PKG
- Installing MySQL Using a Development Source Tree
- Installing MySQL Using a Standard Source Distribution
- Installing MySQL Using Unbreakable Linux Network (ULN)
- Installing NDB Cluster on Windows
- Installing OpenTelemetry Support
- Installing Perl on Unix
- Integer Types (Exact Value) - INTEGER, INT, SMALLINT, TINYINT, MEDIUMINT, BIGINT
- Interfaces to a MySQL Document Store
- 第 8 组（I – M）
- Internal Functions
- Internal Locking Methods
- Internal Temporary Table Use in MySQL
- Introduction
- Introduction to InnoDB
- Invisible Indexes
- Invoking MySQL Programs
- IPv6 Support
- JavaScript Quick-Start Guide: MySQL Shell for Document Store
- JSON Function Reference
- JSON Schema Validation Functions
- JSON Table Functions
- json-utility-functions
- Keeping Passwords Secure
- KEY Partitioning
- Keywords and Reserved Words
- Known Issues in NDB Cluster Replication
- Known Limitations of NDB Cluster
- Limits on Number of Databases and Tables
- Limits on Table Size
- LIST Partitioning
- LOAD DATA Statement
- LOAD XML Statement
- Loadable Function Reference
- Loading Data into a Table
- LOCK INSTANCE FOR BACKUP and UNLOCK INSTANCE Statements
- LOCK TABLES and UNLOCK TABLES Statements
- Locking Functions
- Locks Set by Different SQL Statements in InnoDB
- Log Buffer
- Logical Operators
- Maintenance
- Maintenance of Partitions
- Making MySQL Secure Against Attackers
- Management of HASH and KEY Partitions
- Management of NDB Cluster
- Management of RANGE and LIST Partitions
- Managing MySQL Server with systemd
- Mapping of Identifiers to File Names
- Mathematical Functions
- Measuring Performance (Benchmarking)
- Measuring Performance with performance_schema
- Measuring the Speed of Expressions and Functions
- MERGE Table Advantages and Disadvantages
- merge-table-problems
- Metadata Locking
- Miscellaneous Functions
- monitor-alter-table-performance-schema
- Monitoring Group Replication Memory Usage with Performance Schema Memory Instrumentation
- Monitoring InnoDB Mutex Waits Using Performance Schema
- Monitoring Row-based Replication
- Monitoring X Plugin
- Multi-Byte Character Support for Complex Character Sets
- Multifactor Authentication
- Multiple-Column Indexes
- MyISAM Startup Options
- MyISAM Table Maintenance and Crash Recovery
- MyISAM Table Optimization
- MyISAM Table Problems
- MyISAM Table Storage Formats
- 第 9 组（M – N）
- myisamchk — MyISAM Table-Maintenance Utility
- myisampack — Generate Compressed, Read-Only MyISAM Tables
- MySQL Configuration and Third-Party Tools
- MySQL Differences from Standard SQL
- MySQL Enterprise Audit Overview
- MySQL Enterprise Backup Overview
- MySQL Enterprise Data Masking and De-Identification
- MySQL Enterprise Data Masking and De-Identification Components
- MySQL Enterprise Data Masking and De-Identification Overview
- MySQL Enterprise Data Masking and De-Identification Plugin
- MySQL Enterprise Encryption Overview
- MySQL Enterprise Firewall Overview
- MySQL Enterprise Security Overview
- MySQL Enterprise Thread Pool
- MySQL Enterprise Thread Pool Overview
- MySQL Layout for Source Installation
- MySQL Multi-Source Replication
- MySQL Plugin Services
- MySQL Releases: Innovation and LTS
- MySQL Server Loadable Functions
- MySQL Server Locale Support
- MySQL Server Logs
- MySQL Server Plugins
- MySQL Server SELinux Policies
- MySQL Server Time Zone Support
- MySQL Server Usage for NDB Cluster
- MySQL Server Using InnoDB Compared with NDB Cluster
- MySQL Shell
- MySQL Shell（2）
- MySQL Source-Configuration Options
- MySQL Telemetry
- mysql — The MySQL Command-Line Client
- mysql.server — MySQL Server Startup Script
- mysql_config — Display Options for Compiling Clients
- mysql_config_editor — MySQL Configuration Utility
- mysql_migrate_keyring — Keyring Key Migration Utility
- mysql_secure_installation — Improve MySQL Installation Security
- mysql_tzinfo_to_sql — Load the Time Zone Tables
- mysqladmin — A MySQL Server Administration Program
- mysqlbinlog — Utility for Processing Binary Log Files
- mysqlcheck — A Table Maintenance Program
- mysqld — The MySQL Server
- mysqld_multi — Manage Multiple MySQL Servers
- mysqld_safe — MySQL Server Startup Script
- mysqldump Tips
- mysqldump — A Database Backup Program
- mysqldumpslow — Summarize Slow Query Log Files
- mysqlimport — A Data Import Program
- mysqlshow — Display Database, Table, and Column Information
- mysqlslap — A Load Emulation Client
- Named Windows
- Naming Instruments or Consumers for Filtering Operations
- NDB API Statistics Counters and Variables
- NDB Cluster and the Performance Schema
- NDB Cluster Backups With NDB Cluster Replication
- NDB Cluster Configuration Files
- NDB Cluster Core Concepts
- NDB Cluster Disk Data Tables
- NDB Cluster Example with Tables and Data
- NDB Cluster Hardware, Software, and Networking Requirements
- 第 10 组（N – O）
- NDB Cluster Installation
- NDB Cluster Log Messages
- NDB Cluster Nodes, Node Groups, Fragment Replicas, and Partitions
- NDB Cluster Overview
- NDB Cluster Programs
- NDB Cluster Release Notes
- NDB Cluster Replication
- NDB Cluster Replication Conflict Resolution
- NDB Cluster Replication Schema and Tables
- NDB Cluster Replication Using the Multithreaded Applier
- NDB Cluster Replication: Abbreviations and Symbols
- NDB Cluster Replication: Bidirectional and Circular Replication
- NDB Cluster Security
- NDB Cluster Single User Mode
- NDB Cluster Thread States
- ndb_blob_tool — Check and Repair BLOB and TEXT columns of NDB Cluster Tables
- ndb_config — Extract NDB Cluster Configuration Information
- ndb_delete_all — Delete All Rows from an NDB Table
- ndb_desc — Describe NDB Tables
- ndb_drop_index — Drop Index from an NDB Table
- ndb_drop_table — Drop an NDB Table
- ndb_error_reporter — NDB Error-Reporting Utility
- ndb_import — Import CSV Data Into NDB
- ndb_index_stat — NDB Index Statistics Utility
- ndb_mgm — The NDB Cluster Management Client
- ndb_mgmd — The NDB Cluster Management Server Daemon
- ndb_move_data — NDB Data Copy Utility
- ndb_perror — Obtain NDB Error Message Information
- ndb_print_backup_file — Print NDB Backup File Contents
- ndb_print_file — Print NDB Disk Data File Contents
- ndb_print_frag_file — Print NDB Fragment List File Contents
- ndb_print_schema_file — Print NDB Schema File Contents
- ndb_print_sys_file — Print NDB System File Contents
- ndb_redo_log_reader — Check and Print Content of Cluster Redo Log
- ndb_restore — Restore an NDB Cluster Backup
- ndb_secretsfile_reader — Obtain Key Information from an Encrypted NDB Data File
- ndb_select_all — Print Rows from an NDB Table
- ndb_select_count — Print Row Counts for NDB Tables
- ndb_show_tables — Display List of NDB Tables
- ndb_sign_keys — Create, Sign, and Manage TLS Keys and Certificates for NDB Cluster
- ndb_size.pl — NDBCLUSTER Size Requirement Estimator
- ndb_top — View CPU usage information for NDB threads
- ndb_waiter — Wait for NDB Cluster to Reach a Given Status
- ndbd — The NDB Cluster Data Node Daemon
- ndbinfo: The NDB Cluster Information Database
- ndbinfo_select_all — Select From ndbinfo Tables
- ndbmtd — The NDB Cluster Data Node Daemon (Multi-Threaded)
- ndbxfrm — Compress, Decompress, Encrypt, and Decrypt Files Created by NDB Cluster
- Network Namespace Support
- NULL Values
- Numeric Data Type Syntax
- Numeric Data Types
- Numeric Functions and Operators
- Numeric Literals
- Numeric Type Attributes
- Obtaining Component Information
- Obtaining Information About Loadable Functions
- Obtaining Information About Partitions
- Obtaining Parent Event Information
- Obtaining Server Plugin Information
- 第 11 组（O – P）
- Online Backup of NDB Cluster
- Online DDL Failure Conditions
- Online DDL Limitations
- Online DDL Memory Management
- Online DDL Operations
- Online DDL Performance and Concurrency
- Online DDL Space Requirements
- Online Operations with ALTER TABLE in NDB Cluster
- OpenTelemetry Metrics
- OpenTelemetry Trace
- Operator Precedence
- Operators
- Optimization and Indexes
- Optimization Overview
- Optimizer Hints
- Optimizer Statistics
- Optimizer Trace Implementation
- Optimizing Data Change Statements
- Optimizing Data Size
- Optimizing Database Privileges
- Optimizing Database Structure
- Optimizing Disk I/O
- Optimizing for InnoDB Tables
- Optimizing for Many Tables
- Optimizing for MEMORY Tables
- Optimizing for MyISAM Tables
- Optimizing INFORMATION_SCHEMA Queries
- Optimizing InnoDB Configuration Variables
- Optimizing InnoDB DDL Operations
- Optimizing InnoDB Disk I/O
- Optimizing InnoDB for Systems with Many Tables
- Optimizing InnoDB Queries
- Optimizing InnoDB Read-Only Transactions
- Optimizing InnoDB Redo Logging
- Optimizing InnoDB Transaction Management
- Optimizing Locking Operations
- Optimizing MyISAM Queries
- Optimizing Performance Schema Queries
- Optimizing Queries with EXPLAIN
- Optimizing REPAIR TABLE Statements
- Optimizing SELECT Statements
- Optimizing Spatial Analysis
- Optimizing SQL Statements
- Optimizing Storage Layout for InnoDB Tables
- Optimizing Subqueries, Derived Tables, View References, and Common Table Expressions
- Optimizing the MySQL Server
- Options, Variables, and Parameters Added, Deprecated or Removed in NDB 8.4
- Other Optimization Tips
- Other Storage Engines
- Out-of-Range and Overflow Handling
- Overview of MySQL Programs
- Overview of MySQL Storage Engine Architecture
- Overview of NDB Cluster Configuration Parameters, Options, and Variables
- Overview of Partitioning in MySQL
- Parenthesized Query Expressions
- Partition Management
- Partition Pruning
- Partition Selection
- Partitioning Keys, Primary Keys, and Unique Keys
- Partitioning Limitations Relating to Functions
- 第 12 组（P – P）
- Partitioning Limitations Relating to Storage Engines
- Partitioning Types
- Password Management
- Performance Schema and Plugins
- Performance Schema Atom and Molecule Events
- Performance Schema Build Configuration
- Performance Schema Clone Tables
- Performance Schema Command Options
- Performance Schema Connection Attribute Tables
- Performance Schema Connection Tables
- Performance Schema Event Filtering
- Performance Schema Event Timing
- Performance Schema Firewall Tables
- Performance Schema Functions
- Performance Schema General Table Characteristics
- Performance Schema Instance Tables
- Performance Schema Instrument Naming Conventions
- Performance Schema Keyring Tables
- Performance Schema Lock Tables
- Performance Schema Miscellaneous Tables
- Performance Schema NDB Cluster Tables
- Performance Schema Option and Variable Reference
- Performance Schema Queries
- Performance Schema Quick Start
- Performance Schema Replication Tables
- Performance Schema Runtime Configuration
- Performance Schema Setup Tables
- Performance Schema Stage Event Tables
- Performance Schema Startup Configuration
- Performance Schema Statement Digests and Sampling
- Performance Schema Statement Event Tables
- Performance Schema Status Monitoring
- Performance Schema Status Variable Tables
- Performance Schema Status Variables
- Performance Schema Summary Tables
- Performance Schema System Variable Tables
- Performance Schema System Variables
- Performance Schema Table Descriptions
- Performance Schema Table Reference
- Performance Schema Tables for Current and Historical Events
- Performance Schema Telemetry Tables
- Performance Schema Thread Pool Tables
- Performance Schema Transaction Tables
- Performance Schema User-Defined Variable Tables
- Performance Schema Wait Event Tables
- Performing a Rolling Restart of an NDB Cluster
- Perl Installation Notes
- perror — Display MySQL Error Message Information
- Phantom Rows
- Pluggable Authentication
- Pluggable Storage Engine Architecture
- Point-in-Time (Incremental) Recovery
- Point-in-Time Recovery Using Binary Log
- Point-in-Time Recovery Using Event Positions
- Populating Spatial Columns
- Position-Based Synchronization Functions
- Postinstallation Setup and Testing
- Pre-Filtering by Consumer
- Pre-Filtering by Instrument
- Pre-Filtering by Object
- 第 13 组（P – R）
- Pre-Filtering by Thread
- Precision Math
- Precision Math Examples
- Preface and Legal Notices
- PREPARE Statement
- Prepared Statements
- Preparing the NDB Cluster for Replication
- Preparing Your Installation for Upgrade
- Prerequisites for Using the sys Schema
- Prerequisites to Deploying MySQL EE on Oracle Cloud Infrastructure
- Preventing the Use of Optimizer Trace
- Primary Key Optimization
- Privilege Checking
- Privilege Restriction Using Partial Revokes
- Privilege Synchronization and NDB_STORED_USER
- Privileges Provided by MySQL
- Problems Using the Perl DBI/DBD Interface
- Program Development Utilities
- Proxy Users
- Python Quick-Start Guide: MySQL Shell for Document Store
- Query Attribute Components
- Query Attributes
- Query Profiling Using Performance Schema
- Quick Reference: NDB Cluster SQL Statements
- Quick Test Setup of NDB Cluster
- RANGE Partitioning
- Rebuilding or Repairing Tables or Indexes
- Reclaiming Disk Space with TRUNCATE TABLE
- Redo Log
- Regular Expressions
- Relational Tables
- Relational Tables（2）
- Relay Log and Replication Metadata Repositories
- Reloading Delimited-Text Format Backups
- Reloading SQL-Format Backups
- Removal of File-based Metadata Storage
- RENAME TABLE Statement
- Repairing and Checking CSV Tables
- REPLACE Statement
- Replicating Different Databases to Different Replicas
- Replication and Binary Logging Options and Variables
- Replication Channels
- Replication Compatibility Between MySQL Versions
- Replication Connection Thread States
- Replication Features and Issues
- Replication Formats
- Replication Functions
- Replication I/O (Receiver) Thread States
- Replication Implementation
- Replication Privilege Checks
- Replication Security
- Replication Solutions
- Replication Source Thread States
- Replication SQL Thread States
- Replication Statements
- Replication Threads
- Replication with Global Transaction Identifiers
- Reserved Accounts
- Resource Group Management Statements
- Resource Groups
- 第 14 组（R – S）
- Restrictions and Limitations on Partitioning
- Restrictions on Performance Schema
- Restrictions on Stored Programs
- Restrictions on Views
- Retrieving Information from a Table
- Retrieving InnoDB Tablespace Metadata from INFORMATION_SCHEMA.FILES
- Reusing SSL Sessions
- Rounding Behavior
- Running Multiple MySQL Instances on One Machine
- Safe Shutdown and Restart of NDB Cluster
- SAVEPOINT, ROLLBACK TO SAVEPOINT, and RELEASE SAVEPOINT Statements
- Scheduler Component
- Schema Object Names
- Searching on Two Keys
- Securing the Initial MySQL Account
- Security Components and Plugins
- Security Considerations for LOAD DATA LOCAL
- Security Guidelines
- Security-Related mysqld Options and Variables
- SELECT Statement
- Selecting General Query Log and Slow Query Log Output Destinations
- Selecting Optimizer Features to Trace
- SELinux
- SELinux File Context
- SELinux TCP Port Context
- Semisynchronous Replication
- Serialized Dictionary Information (SDI)
- Server and Server-Startup Programs
- Server Command Options
- Server Configuration Defaults
- Server Configuration Validation
- Server Log Maintenance
- Server Meters
- Server Metrics
- Server Option, System Variable, and Status Variable Reference
- Server SQL Modes
- Server Status Variable Reference
- Server Status Variables
- Server System Variable Reference
- Server System Variables
- Server Tracking of Client Session State
- Server-Side Help Support
- Set Operations with UNION, INTERSECT, and EXCEPT
- SET Statements
- SET TRANSACTION Statement
- Setting Account Resource Limits
- Setting Environment Variables
- Setting the Storage Engine
- Setting Up a MyISAM Table Maintenance Schedule
- Setting Up Binary Log File Position Based Replication
- Setting Up Multiple Data Directories
- Setting Up Replication to Use Encrypted Connections
- SHOW Statements
- Simplifying DDL Statements with Online DDL
- Source Installation Methods
- Source Installation Prerequisites
- Space Needed for Keys
- Spatial Aggregate Functions
- Spatial Analysis Functions
- Spatial Convenience Functions
- 第 15 组（S – T）
- Spatial Data Types
- Spatial Data Types（2）
- Spatial Function Reference
- Spatial Geohash Functions
- Spatial GeoJSON Functions
- SPATIAL Index Optimization
- Spatial Operator Functions
- Spatial Reference System Support
- Specifying Program Options
- Specifying Role Names
- SQL Statements for Controlling Group Replication
- SQL Statements for Controlling Replica Servers
- SQL Statements for Controlling Source Servers
- Starting NDB Cluster Replication (Single Replication Channel)
- Starting the Server
- Statement Labels
- Statements That Cause an Implicit Commit
- Stored Object Access Control
- Stored Procedures, Functions, Triggers, and LAST_INSERT_ID()
- Stored Program Binary Logging
- Stored Routine Metadata
- Stored Routine Syntax
- Stored Routines and MySQL Privileges
- String Collating Support for Complex Character Sets
- String Comparison Functions and Operators
- String Data Type Syntax
- String Data Types
- String Functions and Operators
- String Literals
- Subpartitioning
- Subqueries
- Summary of NDB Cluster Start Phases
- Supported Platforms
- Switchable Optimizations
- Switching Sources and Replicas with Asynchronous Connection Failover
- Switching Sources During Failover
- sys Schema Object Index
- sys Schema Object Reference
- sys Schema Progress Reporting
- sys Schema Stored Functions
- sys Schema Stored Procedures
- sys Schema Tables and Triggers
- sys Schema Views
- System Variables Controlling Tracing
- Table Locking Issues
- TABLE Statement
- Telemetry Variables
- Testing and Benchmarking with InnoDB
- Testing the Server
- The Common Database Server Layer
- The CSV Storage Engine
- The DATE, DATETIME, and TIMESTAMP Types
- The DBUG Package
- The ddl_rewriter Plugin
- The end_markers_in_json System Variable
- The General Query Log
- The INFORMATION_SCHEMA APPLICABLE_ROLES Table
- The INFORMATION_SCHEMA CHARACTER_SETS Table
- The INFORMATION_SCHEMA CHECK_CONSTRAINTS Table
- The INFORMATION_SCHEMA COLLATION_CHARACTER_SET_APPLICABILITY Table
- 第 16 组（T – T）
- The INFORMATION_SCHEMA COLLATIONS Table
- The INFORMATION_SCHEMA COLUMN_PRIVILEGES Table
- The INFORMATION_SCHEMA COLUMN_STATISTICS Table
- The INFORMATION_SCHEMA COLUMNS Table
- The INFORMATION_SCHEMA COLUMNS_EXTENSIONS Table
- The INFORMATION_SCHEMA ENABLED_ROLES Table
- The INFORMATION_SCHEMA ENGINES Table
- The INFORMATION_SCHEMA EVENTS Table
- The INFORMATION_SCHEMA FILES Table
- The INFORMATION_SCHEMA INNODB_BUFFER_PAGE Table
- The INFORMATION_SCHEMA INNODB_BUFFER_PAGE_LRU Table
- The INFORMATION_SCHEMA INNODB_BUFFER_POOL_STATS Table
- The INFORMATION_SCHEMA INNODB_CACHED_INDEXES Table
- The INFORMATION_SCHEMA INNODB_CMP and INNODB_CMP_RESET Tables
- The INFORMATION_SCHEMA INNODB_CMP_PER_INDEX and INNODB_CMP_PER_INDEX_RESET Tables
- The INFORMATION_SCHEMA INNODB_CMPMEM and INNODB_CMPMEM_RESET Tables
- The INFORMATION_SCHEMA INNODB_COLUMNS Table
- The INFORMATION_SCHEMA INNODB_DATAFILES Table
- The INFORMATION_SCHEMA INNODB_FIELDS Table
- The INFORMATION_SCHEMA INNODB_FOREIGN Table
- The INFORMATION_SCHEMA INNODB_FOREIGN_COLS Table
- The INFORMATION_SCHEMA INNODB_FT_BEING_DELETED Table
- The INFORMATION_SCHEMA INNODB_FT_CONFIG Table
- The INFORMATION_SCHEMA INNODB_FT_DEFAULT_STOPWORD Table
- The INFORMATION_SCHEMA INNODB_FT_DELETED Table
- The INFORMATION_SCHEMA INNODB_FT_INDEX_CACHE Table
- The INFORMATION_SCHEMA INNODB_FT_INDEX_TABLE Table
- The INFORMATION_SCHEMA INNODB_INDEXES Table
- The INFORMATION_SCHEMA INNODB_METRICS Table
- The INFORMATION_SCHEMA INNODB_SESSION_TEMP_TABLESPACES Table
- The INFORMATION_SCHEMA INNODB_TABLES Table
- The INFORMATION_SCHEMA INNODB_TABLESPACES Table
- The INFORMATION_SCHEMA INNODB_TABLESPACES_BRIEF Table
- The INFORMATION_SCHEMA INNODB_TABLESTATS View
- The INFORMATION_SCHEMA INNODB_TEMP_TABLE_INFO Table
- The INFORMATION_SCHEMA INNODB_TRX Table
- The INFORMATION_SCHEMA INNODB_VIRTUAL Table
- The INFORMATION_SCHEMA KEY_COLUMN_USAGE Table
- The INFORMATION_SCHEMA KEYWORDS Table
- The INFORMATION_SCHEMA MYSQL_FIREWALL_USERS Table
- The INFORMATION_SCHEMA MYSQL_FIREWALL_WHITELIST Table
- The INFORMATION_SCHEMA ndb_transid_mysql_connection_map Table
- The INFORMATION_SCHEMA OPTIMIZER_TRACE Table
- The INFORMATION_SCHEMA PARAMETERS Table
- The INFORMATION_SCHEMA PARTITIONS Table
- The INFORMATION_SCHEMA PLUGINS Table
- The INFORMATION_SCHEMA PROCESSLIST Table
- The INFORMATION_SCHEMA PROFILING Table
- The INFORMATION_SCHEMA REFERENTIAL_CONSTRAINTS Table
- The INFORMATION_SCHEMA ROLE_COLUMN_GRANTS Table
- The INFORMATION_SCHEMA ROLE_ROUTINE_GRANTS Table
- The INFORMATION_SCHEMA ROLE_TABLE_GRANTS Table
- The INFORMATION_SCHEMA ROUTINES Table
- The INFORMATION_SCHEMA SCHEMA_PRIVILEGES Table
- The INFORMATION_SCHEMA SCHEMATA Table
- The INFORMATION_SCHEMA SCHEMATA_EXTENSIONS Table
- The INFORMATION_SCHEMA ST_GEOMETRY_COLUMNS Table
- The INFORMATION_SCHEMA ST_SPATIAL_REFERENCE_SYSTEMS Table
- The INFORMATION_SCHEMA ST_UNITS_OF_MEASURE Table
- The INFORMATION_SCHEMA STATISTICS Table
- 第 17 组（T – U）
- The INFORMATION_SCHEMA TABLE_CONSTRAINTS Table
- The INFORMATION_SCHEMA TABLE_CONSTRAINTS_EXTENSIONS Table
- The INFORMATION_SCHEMA TABLE_PRIVILEGES Table
- The INFORMATION_SCHEMA TABLES Table
- The INFORMATION_SCHEMA TABLES_EXTENSIONS Table
- The INFORMATION_SCHEMA TABLESPACES_EXTENSIONS Table
- The INFORMATION_SCHEMA TP_THREAD_GROUP_STATE Table
- The INFORMATION_SCHEMA TP_THREAD_GROUP_STATS Table
- The INFORMATION_SCHEMA TP_THREAD_STATE Table
- The INFORMATION_SCHEMA TRIGGERS Table
- The INFORMATION_SCHEMA USER_ATTRIBUTES Table
- The INFORMATION_SCHEMA USER_PRIVILEGES Table
- The INFORMATION_SCHEMA VIEW_ROUTINE_USAGE Table
- The INFORMATION_SCHEMA VIEW_TABLE_USAGE Table
- The INFORMATION_SCHEMA VIEWS Table
- The JSON Data Type
- The Keyring Proxy Bridge Plugin
- The LOCK_ORDER Tool
- The MEMORY Storage Engine
- The MERGE Storage Engine
- The MyISAM Key Cache
- The MyISAM Storage Engine
- The MySQL Data Directory
- The MySQL Keyring
- The MySQL Server
- The mysql System Schema
- The OpenGIS Geometry Model
- The optimizer_trace System Variable
- The Password Validation Component
- The Performance Schema Memory-Allocation Model
- The Rewriter Query Rewrite Plugin
- The Server Shutdown Process
- The SET Type
- The Slow Query Log
- The TIME Type
- The View WITH CHECK OPTION Clause
- The YEAR Type
- Thread Command Values
- Trace Format
- Trace General Structure
- Traceable Statements
- Tracing Memory Usage
- Tracing the Optimizer
- Transaction Scheduling
- Transactional and Locking Statements
- Transactional Storage of Dictionary Data
- Trigger Metadata
- Trigger Syntax and Examples
- Troubleshooting a Microsoft Windows MySQL Server Installation
- Troubleshooting InnoDB Data Dictionary Operations
- Troubleshooting Problems Connecting to MySQL
- Troubleshooting Recovery Failures
- Troubleshooting Replication
- Troubleshooting SELinux
- TRUNCATE TABLE Statement
- Tuning Trace Purging
- Type Conversion in Expression Evaluation
- Types of Numeric Values
- Typical Usage
- Undo Logs
- 第 18 组（U – W）
- UNION Clause
- Unix Signal Handling in MySQL
- Updatable and Insertable Views
- UPDATE Statement
- Upgrade Best Practices
- Upgrade Paths
- Upgrade Troubleshooting
- Upgrading a Docker Installation of MySQL
- Upgrading and Downgrading NDB Cluster
- Upgrading MySQL Binary or Package-based Installations on Unix/Linux
- Upgrading MySQL on Windows
- Upgrading MySQL with the MySQL APT Repository
- Upgrading MySQL with the MySQL SLES Repository
- Upgrading MySQL with the MySQL Yum Repository
- Upgrading or Downgrading a Replication Topology
- Use of Index Extensions
- USE Statement
- User-Defined Variables
- Using Asynchronous I/O on Linux
- Using Backups for Recovery
- Using Client Programs in a Multiple-Server Environment
- Using Data Types from Other Database Engines
- Using Encrypted Connections
- Using Encrypted Connections with X Plugin
- Using High-Speed Interconnects with NDB Cluster
- Using mysqldump for Backups
- Using Replication for Backups
- Using Replication for Scale-Out
- Using Replication with Different Source and Replica Storage Engines
- Using Roles
- Using Spatial Indexes
- Using Stored Routines
- Using Symbolic Links
- Using System Variables
- Using the MySQL SLES Repository
- Using the Performance Schema to Diagnose Problems
- Using the sys Schema
- Using Triggers
- Using Two Replication Channels for NDB Cluster Replication
- Using Views
- Using X Plugin with the Caching SHA-2 Authentication Plugin
- Using Your Own Benchmarks
- VALUES Statement
- Variables in Stored Programs
- Verifying Index Usage
- Verifying Package Integrity Using MD5 Checksums or GnuPG
- Verifying that InnoDB is the Default Storage Engine
- Version Tokens
- View Metadata
- View Processing Algorithms
- View Syntax
- What Calendar Is Used By MySQL?
- What is MySQL?
- What Is New in MySQL 8.4 since MySQL 8.0
- What is New in MySQL NDB Cluster 8.4
- What the MySQL Upgrade Process Upgrades
- When Privilege Changes Take Effect
- Which MySQL Version and Distribution to Install
- Window Function Concepts and Syntax
- Window Function Descriptions
- 第 19 组（W – X，续）
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