## 26.2 INFORMATION\_SCHEMA Table Reference

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

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**Table 26.1 INFORMATION\_SCHEMA Tables**

|                                                     Table Name                                                     |                                        Description                                        |Introduced|Deprecated|
|--------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------|----------|----------|
|       [`ADMINISTRABLE_ROLE_AUTHORIZATIONS`](information-schema-administrable-role-authorizations-table.html)       |                     Grantable users or roles for current user or role                     |  8.0.19  |          |
|                        [`APPLICABLE_ROLES`](information-schema-applicable-roles-table.html)                        |                             Applicable roles for current user                             |  8.0.19  |          |
|                          [`CHARACTER_SETS`](information-schema-character-sets-table.html)                          |                                 Available character sets                                  |          |          |
|                       [`CHECK_CONSTRAINTS`](information-schema-check-constraints-table.html)                       |                            Table and column CHECK constraints                             |  8.0.16  |          |
|   [`COLLATION_CHARACTER_SET_APPLICABILITY`](information-schema-collation-character-set-applicability-table.html)   |                        Character set applicable to each collation                         |          |          |
|                              [`COLLATIONS`](information-schema-collations-table.html)                              |                             Collations for each character set                             |          |          |
|                       [`COLUMN_PRIVILEGES`](information-schema-column-privileges-table.html)                       |                               Privileges defined on columns                               |          |          |
|                       [`COLUMN_STATISTICS`](information-schema-column-statistics-table.html)                       |                          Histogram statistics for column values                           |          |          |
|                                 [`COLUMNS`](information-schema-columns-table.html)                                 |                                   Columns in each table                                   |          |          |
|                      [`COLUMNS_EXTENSIONS`](information-schema-columns-extensions-table.html)                      |                Column attributes for primary and secondary storage engines                |  8.0.21  |          |
|[`CONNECTION_CONTROL_FAILED_LOGIN_ATTEMPTS`](information-schema-connection-control-failed-login-attempts-table.html)|           Current number of consecutive failed connection attempts per account            |          |          |
|                           [`ENABLED_ROLES`](information-schema-enabled-roles-table.html)                           |                           Roles enabled within current session                            |  8.0.19  |          |
|                                 [`ENGINES`](information-schema-engines-table.html)                                 |                                 Storage engine properties                                 |          |          |
|                                  [`EVENTS`](information-schema-events-table.html)                                  |                                   Event Manager events                                    |          |          |
|                                   [`FILES`](information-schema-files-table.html)                                   |                             Files that store tablespace data                              |          |          |
|                      [`INNODB_BUFFER_PAGE`](information-schema-innodb-buffer-page-table.html)                      |                                Pages in InnoDB buffer pool                                |          |          |
|                  [`INNODB_BUFFER_PAGE_LRU`](information-schema-innodb-buffer-page-lru-table.html)                  |                        LRU ordering of pages in InnoDB buffer pool                        |          |          |
|                [`INNODB_BUFFER_POOL_STATS`](information-schema-innodb-buffer-pool-stats-table.html)                |                               InnoDB buffer pool statistics                               |          |          |
|                   [`INNODB_CACHED_INDEXES`](information-schema-innodb-cached-indexes-table.html)                   |               Number of index pages cached per index in InnoDB buffer pool                |          |          |
|                              [`INNODB_CMP`](information-schema-innodb-cmp-table.html)                              |                 Status for operations related to compressed InnoDB tables                 |          |          |
|                    [`INNODB_CMP_PER_INDEX`](information-schema-innodb-cmp-per-index-table.html)                    |           Status for operations related to compressed InnoDB tables and indexes           |          |          |
|                 [`INNODB_CMP_PER_INDEX_RESET`](information-schema-innodb-cmp-per-index-table.html)                 |           Status for operations related to compressed InnoDB tables and indexes           |          |          |
|                           [`INNODB_CMP_RESET`](information-schema-innodb-cmp-table.html)                           |                 Status for operations related to compressed InnoDB tables                 |          |          |
|                           [`INNODB_CMPMEM`](information-schema-innodb-cmpmem-table.html)                           |                   Status for compressed pages within InnoDB buffer pool                   |          |          |
|                        [`INNODB_CMPMEM_RESET`](information-schema-innodb-cmpmem-table.html)                        |                   Status for compressed pages within InnoDB buffer pool                   |          |          |
|                          [`INNODB_COLUMNS`](information-schema-innodb-columns-table.html)                          |                               Columns in each InnoDB table                                |          |          |
|                        [`INNODB_DATAFILES`](information-schema-innodb-datafiles-table.html)                        |       Data file path information for InnoDB file-per-table and general tablespaces        |          |          |
|                           [`INNODB_FIELDS`](information-schema-innodb-fields-table.html)                           |                               Key columns of InnoDB indexes                               |          |          |
|                          [`INNODB_FOREIGN`](information-schema-innodb-foreign-table.html)                          |                                InnoDB foreign-key metadata                                |          |          |
|                     [`INNODB_FOREIGN_COLS`](information-schema-innodb-foreign-cols-table.html)                     |                       InnoDB foreign-key column status information                        |          |          |
|                 [`INNODB_FT_BEING_DELETED`](information-schema-innodb-ft-being-deleted-table.html)                 |                           Snapshot of INNODB\_FT\_DELETED table                           |          |          |
|                        [`INNODB_FT_CONFIG`](information-schema-innodb-ft-config-table.html)                        |            Metadata for InnoDB table FULLTEXT index and associated processing             |          |          |
|              [`INNODB_FT_DEFAULT_STOPWORD`](information-schema-innodb-ft-default-stopword-table.html)              |                   Default list of stopwords for InnoDB FULLTEXT indexes                   |          |          |
|                       [`INNODB_FT_DELETED`](information-schema-innodb-ft-deleted-table.html)                       |                       Rows deleted from InnoDB table FULLTEXT index                       |          |          |
|                   [`INNODB_FT_INDEX_CACHE`](information-schema-innodb-ft-index-cache-table.html)                   |            Token information for newly inserted rows in InnoDB FULLTEXT index             |          |          |
|                   [`INNODB_FT_INDEX_TABLE`](information-schema-innodb-ft-index-table-table.html)                   |Inverted index information for processing text searches against InnoDB table FULLTEXT index|          |          |
|                          [`INNODB_INDEXES`](information-schema-innodb-indexes-table.html)                          |                                   InnoDB index metadata                                   |          |          |
|                          [`INNODB_METRICS`](information-schema-innodb-metrics-table.html)                          |                              InnoDB performance information                               |          |          |
|         [`INNODB_SESSION_TEMP_TABLESPACES`](information-schema-innodb-session-temp-tablespaces-table.html)         |                           Session temporary-tablespace metadata                           |  8.0.13  |          |
|                           [`INNODB_TABLES`](information-schema-innodb-tables-table.html)                           |                                   InnoDB table metadata                                   |          |          |
|                      [`INNODB_TABLESPACES`](information-schema-innodb-tablespaces-table.html)                      |               InnoDB file-per-table, general, and undo tablespace metadata                |          |          |
|                [`INNODB_TABLESPACES_BRIEF`](information-schema-innodb-tablespaces-brief-table.html)                |            Brief file-per-table, general, undo, and system tablespace metadata            |          |          |
|                       [`INNODB_TABLESTATS`](information-schema-innodb-tablestats-table.html)                       |                         InnoDB table low-level status information                         |          |          |
|                  [`INNODB_TEMP_TABLE_INFO`](information-schema-innodb-temp-table-info-table.html)                  |               Information about active user-created InnoDB temporary tables               |          |          |
|                              [`INNODB_TRX`](information-schema-innodb-trx-table.html)                              |                           Active InnoDB transaction information                           |          |          |
|                          [`INNODB_VIRTUAL`](information-schema-innodb-virtual-table.html)                          |                         InnoDB virtual generated column metadata                          |          |          |
|                        [`KEY_COLUMN_USAGE`](information-schema-key-column-usage-table.html)                        |                            Which key columns have constraints                             |          |          |
|                                [`KEYWORDS`](information-schema-keywords-table.html)                                |                                      MySQL keywords                                       |          |          |
|                    [`MYSQL_FIREWALL_USERS`](information-schema-mysql-firewall-users-table.html)                    |                       Firewall in-memory data for account profiles                        |          |  8.0.26  |
|                [`MYSQL_FIREWALL_WHITELIST`](information-schema-mysql-firewall-whitelist-table.html)                |                  Firewall in-memory data for account profile allowlists                   |          |  8.0.26  |
|        [`ndb_transid_mysql_connection_map`](information-schema-ndb-transid-mysql-connection-map-table.html)        |                                NDB transaction information                                |          |          |
|                         [`OPTIMIZER_TRACE`](information-schema-optimizer-trace-table.html)                         |                     Information produced by optimizer trace activity                      |          |          |
|                              [`PARAMETERS`](information-schema-parameters-table.html)                              |                Stored routine parameters and stored function return values                |          |          |
|                              [`PARTITIONS`](information-schema-partitions-table.html)                              |                                Table partition information                                |          |          |
|                                 [`PLUGINS`](information-schema-plugins-table.html)                                 |                                    Plugin information                                     |          |          |
|                             [`PROCESSLIST`](information-schema-processlist-table.html)                             |                       Information about currently executing threads                       |          |          |
|                               [`PROFILING`](information-schema-profiling-table.html)                               |                              Statement profiling information                              |          |          |
|                 [`REFERENTIAL_CONSTRAINTS`](information-schema-referential-constraints-table.html)                 |                                  Foreign key information                                  |          |          |
|                         [`RESOURCE_GROUPS`](information-schema-resource-groups-table.html)                         |                                Resource group information                                 |          |          |
|                      [`ROLE_COLUMN_GRANTS`](information-schema-role-column-grants-table.html)                      |      Column privileges for roles available to or granted by currently enabled roles       |  8.0.19  |          |
|                     [`ROLE_ROUTINE_GRANTS`](information-schema-role-routine-grants-table.html)                     |      Routine privileges for roles available to or granted by currently enabled roles      |  8.0.19  |          |
|                       [`ROLE_TABLE_GRANTS`](information-schema-role-table-grants-table.html)                       |       Table privileges for roles available to or granted by currently enabled roles       |  8.0.19  |          |
|                                [`ROUTINES`](information-schema-routines-table.html)                                |                                Stored routine information                                 |          |          |
|                       [`SCHEMA_PRIVILEGES`](information-schema-schema-privileges-table.html)                       |                               Privileges defined on schemas                               |          |          |
|                                [`SCHEMATA`](information-schema-schemata-table.html)                                |                                    Schema information                                     |          |          |
|                     [`SCHEMATA_EXTENSIONS`](information-schema-schemata-extensions-table.html)                     |                                      Schema options                                       |  8.0.22  |          |
|                     [`ST_GEOMETRY_COLUMNS`](information-schema-st-geometry-columns-table.html)                     |                       Columns in each table that store spatial data                       |          |          |
|            [`ST_SPATIAL_REFERENCE_SYSTEMS`](information-schema-st-spatial-reference-systems-table.html)            |                            Available spatial reference systems                            |          |          |
|                     [`ST_UNITS_OF_MEASURE`](information-schema-st-units-of-measure-table.html)                     |                            Acceptable units for ST\_Distance()                            |  8.0.14  |          |
|                              [`STATISTICS`](information-schema-statistics-table.html)                              |                                  Table index statistics                                   |          |          |
|                       [`TABLE_CONSTRAINTS`](information-schema-table-constraints-table.html)                       |                               Which tables have constraints                               |          |          |
|            [`TABLE_CONSTRAINTS_EXTENSIONS`](information-schema-table-constraints-extensions-table.html)            |           Table constraint attributes for primary and secondary storage engines           |  8.0.21  |          |
|                        [`TABLE_PRIVILEGES`](information-schema-table-privileges-table.html)                        |                               Privileges defined on tables                                |          |          |
|                                  [`TABLES`](information-schema-tables-table.html)                                  |                                     Table information                                     |          |          |
|                       [`TABLES_EXTENSIONS`](information-schema-tables-extensions-table.html)                       |                Table attributes for primary and secondary storage engines                 |  8.0.21  |          |
|                             [`TABLESPACES`](information-schema-tablespaces-table.html)                             |                                  Tablespace information                                   |          |          |
|                  [`TABLESPACES_EXTENSIONS`](information-schema-tablespaces-extensions-table.html)                  |                     Tablespace attributes for primary storage engines                     |  8.0.21  |          |
|                   [`TP_THREAD_GROUP_STATE`](information-schema-tp-thread-group-state-table.html)                   |                              Thread pool thread group states                              |          |          |
|                   [`TP_THREAD_GROUP_STATS`](information-schema-tp-thread-group-stats-table.html)                   |                            Thread pool thread group statistics                            |          |          |
|                         [`TP_THREAD_STATE`](information-schema-tp-thread-state-table.html)                         |                              Thread pool thread information                               |          |          |
|                                [`TRIGGERS`](information-schema-triggers-table.html)                                |                                    Trigger information                                    |          |          |
|                         [`USER_ATTRIBUTES`](information-schema-user-attributes-table.html)                         |                               User comments and attributes                                |  8.0.21  |          |
|                         [`USER_PRIVILEGES`](information-schema-user-privileges-table.html)                         |                           Privileges defined globally per user                            |          |          |
|                      [`VIEW_ROUTINE_USAGE`](information-schema-view-routine-usage-table.html)                      |                              Stored functions used in views                               |  8.0.13  |          |
|                        [`VIEW_TABLE_USAGE`](information-schema-view-table-usage-table.html)                        |                              Tables and views used in views                               |  8.0.13  |          |
|                                   [`VIEWS`](information-schema-views-table.html)                                   |                                     View information                                      |          |          |

