一、information_schema庫
information_schema庫中的表,保存的是Mysql的元數(shù)據(jù)。
官網(wǎng)元數(shù)據(jù)表介紹
InnoDB相關的表介紹
庫中有表:
+---------------------------------------+ | Tables_in_information_schema | +---------------------------------------+ | CHARACTER_SETS | | COLLATIONS | | COLLATION_CHARACTER_SET_APPLICABILITY | | COLUMNS | | COLUMN_PRIVILEGES | | ENGINES | | EVENTS | | FILES | | GLOBAL_STATUS | | GLOBAL_VARIABLES | | KEY_COLUMN_USAGE &