SET FOREIGN_KEY_CHECKS=0; drop table if exists tl_lasprd10_attachment; drop table if exists tl_lasprd10_spreadsheet; drop table if exists tl_lasprd10_user_edited_spreadsheet; drop table if exists tl_lasprd10_spreadsheet_mark; drop table if exists tl_lasprd10_session; drop table if exists tl_lasprd10_user; SET FOREIGN_KEY_CHECKS=1;