Find the names and publication dates of all catalogs that have catalog level number greater than 5.
create table catalogs (catalog_name varchar, date_of_publication varchar, catalog_id varchar, PRIMARY KEY (catalog_name)); create table catalog_structure (catalog_id varchar, PRIMARY KEY (catalog_id))
select t1.catalog_name, t1.date_of_publication from catalogs as t1 join catalog_structure as t2 on t1.catalog_id = t2.catalog_id where catalog_level_number > 5