SELECT prod_name FROM products; SELECT prod_id, prod_name, prod_price FROM products; SELECT * FROM products; SELECT DISTINCT vend_id FROM products; SELECT prod_name FROM products LIMIT 5; SELECT prod_name FROM products LIMIT 5, 5; #开始行,行数 SELECT products.prod_name FROM products; #使用完全限定的列名 SELECT prod_name FROM mysql_crash_course_db.products; #使用完全限定的表名