List the grades of students who studied the course having the code “ITDR2106” in the semester “FL20”. List the details of students who didn't get the grade ‘A’ in any course. List the ids students who got the grade ‘B’ in ‘SP20’ semester.
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
QUESTION 9
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Consider the following Grades table and express in Relational Algebra each of the questions below:
Grades
StudentId
CourseCode
Semester
Grade
1001
ITDR3101
FL20
B
1002
ITSW3104
FL20
A
1003
ITGP4101
SP20
A
1001
ITDR2106
SP21
C
- List the grades of students who studied the course having the code “ITDR2106” in the semester “FL20”.
- List the details of students who didn't get the grade ‘A’ in any course.
- List the ids students who got the grade ‘B’ in ‘SP20’ semester.
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