21.2 INFORMATION_SCHEMA Table Reference

The following table summarizes all available INFORMATION_SCHEMA tables. For greater detail, see the individual table descriptions.

Table 21.1 INFORMATION_SCHEMA Tables

Table Name	Description	Introduced
CHARACTER_SETS	Available character sets
COLLATION_CHARACTER_SET_APPLICABILITY	Character set applicable to each collation
COLLATIONS	Collations for each character set
COLUMN_PRIVILEGES	Privileges defined on columns
COLUMNS	Columns in each table
CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS	Current number of consecutive failed connection attempts per account	5.6.35
ENGINES	Storage engine properties
EVENTS	Event Manager events
FILES	Files that store tablespace data
GLOBAL_STATUS	Global status variables
GLOBAL_VARIABLES	Global system variables
INNODB_BUFFER_PAGE	Pages in InnoDB buffer pool
INNODB_BUFFER_PAGE_LRU	LRU ordering of pages in InnoDB buffer pool
INNODB_BUFFER_POOL_STATS	InnoDB buffer pool statistics
INNODB_CMP	Status for operations related to compressed InnoDB tables
INNODB_CMP_PER_INDEX	Status for operations related to compressed InnoDB tables and indexes
INNODB_CMP_PER_INDEX_RESET	Status for operations related to compressed InnoDB tables and indexes
INNODB_CMP_RESET	Status for operations related to compressed InnoDB tables
INNODB_CMPMEM	Status for compressed pages within InnoDB buffer pool
INNODB_CMPMEM_RESET	Status for compressed pages within InnoDB buffer pool
INNODB_FT_BEING_DELETED	Snapshot of INNODB_FT_DELETED table
INNODB_FT_CONFIG	Metadata for InnoDB table FULLTEXT index and associated processing
INNODB_FT_DEFAULT_STOPWORD	Default list of stopwords for InnoDB FULLTEXT indexes
INNODB_FT_DELETED	Rows deleted from InnoDB table FULLTEXT index
INNODB_FT_INDEX_CACHE	Token information for newly inserted rows in InnoDB FULLTEXT index
INNODB_FT_INDEX_TABLE	Inverted index information for processing text searches against InnoDB table FULLTEXT index
INNODB_LOCK_WAITS	InnoDB transaction lock-wait information
INNODB_LOCKS	InnoDB transaction lock information
INNODB_METRICS	InnoDB performance information
INNODB_SYS_COLUMNS	Columns in each InnoDB table
INNODB_SYS_DATAFILES	Data file path information for InnoDB file-per-table and general tablespaces
INNODB_SYS_FIELDS	Key columns of InnoDB indexes
INNODB_SYS_FOREIGN	InnoDB foreign-key metadata
INNODB_SYS_FOREIGN_COLS	InnoDB foreign-key column status information
INNODB_SYS_INDEXES	InnoDB index metadata
INNODB_SYS_TABLES	InnoDB table metadata
INNODB_SYS_TABLESPACES	InnoDB file-per-table, general, and undo tablespace metadata
INNODB_SYS_TABLESTATS	InnoDB table low-level status information
INNODB_TRX	Active InnoDB transaction information
KEY_COLUMN_USAGE	Which key columns have constraints
MYSQL_FIREWALL_USERS	Firewall in-memory data for account profiles
MYSQL_FIREWALL_WHITELIST	Firewall in-memory data for account profile allowlists
ndb_transid_mysql_connection_map	NDB transaction information
OPTIMIZER_TRACE	Information produced by optimizer trace activity
PARAMETERS	Stored routine parameters and stored function return values
PARTITIONS	Table partition information
PLUGINS	Plugin information
PROCESSLIST	Information about currently executing threads
PROFILING	Statement profiling information
REFERENTIAL_CONSTRAINTS	Foreign key information
ROUTINES	Stored routine information
SCHEMA_PRIVILEGES	Privileges defined on schemas
SCHEMATA	Schema information
SESSION_STATUS	Status variables for current session
SESSION_VARIABLES	System variables for current session
STATISTICS	Table index statistics
TABLE_CONSTRAINTS	Which tables have constraints
TABLE_PRIVILEGES	Privileges defined on tables
TABLES	Table information
TABLESPACES	Tablespace information
TP_THREAD_GROUP_STATE	Thread pool thread group states
TP_THREAD_GROUP_STATS	Thread pool thread group statistics
TP_THREAD_STATE	Thread pool thread information
TRIGGERS	Trigger information
USER_PRIVILEGES	Privileges defined globally per user
VIEWS	View information