Enroll a student identified by her snum into the class named 'Introduction to Database Systems' is the following transactions, state the SQL isolation level you would use.
1. Enroll a student identified by her snum into the class named 'Introduction to Database Systems'.
<u>Explanation:</u>
Since enroll is unique in the university enrollment database schema and field name is SNUM and it is data type is an integer. To identify student class name and department name and name of student SNUM field is used for searching in university enrollment database schema. Enrollment changing is not possible of the student’s not possible or not good practices in university enrollment database schema.
If a query had been made class wise or department wise enrollment is played an important role.
For assign, a faculty is made on the class id or department id.
Answer:
Annotation symbol
Explanation:
A flowchart is a diagram that is used to show and represent a workflow, process or algorithm. Flow charts are used in designing processes or programs. Flow charts are usually designed using boxes and arrows.
An annotation symbol is a symbol used in flowchart to hold comments and it is usually represented by a three-sided box connected to the step it references by a dashed line.
Social media is the high capacity of communication links
<span>Disk Defragmenter,
is a windows utility that rearranges the records and unused space on the PC's hard
disk so that the operating system accesses data more rapidly and projects run
quicker. Disk Defragmenter keeps running on a timetable, yet you can likewise
break down and defragment your disk and drives manually.</span>
