MySQL Introductionhttps://www.mysql.com/MySQLTutorialshttps://www.w3schools.in/mysql/ddl-dml-dcl/ SQL Introductionhttps://www.w3schools.com/sql/sql_intro.asp 杨波,许丽娟主编;陈刚,骆珍仪,李思思副主编.电子商务概论:北京邮电大学出版社,2014.08 What is Data Manipulation Language (DML)?https://www....