MySQL 5.7 Reference Manual
        MySQL 5.7 Release Notes
        
      The following table summarizes
      INFORMATION_SCHEMA general tables. For greater
      detail, see the individual table descriptions.
Table 4.1 INFORMATION_SCHEMA General Tables
| Table Name | Description | 
|---|---|
| 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 | 
| ENGINES | Storage engine properties | 
| EVENTS | Event Manager events | 
| FILES | Files that store tablespace data | 
| GLOBAL_STATUS | Global status variables | 
| GLOBAL_VARIABLES | Global system variables | 
| KEY_COLUMN_USAGE | Which key columns have constraints | 
| 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 | 
| TRIGGERS | Trigger information | 
| USER_PRIVILEGES | Privileges defined globally per user | 
| VIEWS | View information |