MySQL之information_schema应用小技巧

select * from information_schema.schemata;

select schema_name from information_schema.schemata;

select * from information_schema.tables;

select table_schema from information_schema.tables;

select table_name from information_schema.tables;

select * from information_schema.columns;

select table_schema from information_schema.columns;

select table_name from information_schema.columns;

select column_name from information_schema.columns;