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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:
In today's world, everyone using smartphones as it easily allow to communicate by using different types of features like texting, video, e-mail and by using internet we can run various types of applications.
Smartphones carries one of the main and important skills that is show our current location. By using various types of applications like Global positioning system (GPS), cell ID and wifi we can easily trace the location.
But there is different types of option according to the individual requirement as some people want privacy as they are not interested to share their location to anyone.
Answer:
Kindly check attached picture
Explanation:
Flowchart gives a graphical representation of a steps taken towers the execution of a program.
In the flowchart attached, A variable was initialized and set to 0 ; then a for loop was used to iterate integers 1 up to 10, for each number. It is added to the initialized variable sum until all the 10 integer numbers are added. The the average is obtained by dividing by 10.
Answer:
input-year taken 2020
2020 is divisible by 2
output- 2020 is a leap year
