write sql commands for the following: a. create two different fom1s of the insert command to add a student with a studen t id of 65798 and last name lopez to the student table. b. now write a command that will remove this student from the student table. c. how would your command look like if your task was to remove any student with the last name lopez from the student table? d. create an sql conm1and tha t will modify the name of course ism 4212 from da tabase to introduction to relational databases.