select schema_name from information_schema.schemata;
select table_name from information_schema.tables where table_schema = ‘zzcms’;
select column_name from information_schema.columns where table_schema = ‘zzcms’ and ‘table_name’ = ‘zzcms_zx’;
select schema_name from information_schema.schemata;
select table_name from information_schema.tables where table_schema = ‘zzcms’;
select column_name from information_schema.columns where table_schema = ‘zzcms’ and ‘table_name’ = ‘zzcms_zx’;