Find the output of the following query based on the table given below. SELECT AVG(fees), course_id FROM student GROUP BY course id ORDER BY course_id DESC: Table Name: student Course_id Coursename Fees 1001 C++ 3000 1002 MATHS for IT 2000 1002 MATHS for IT 4000 O a 1002. 3000, 1500, 1001 Ob. 4000, 1002. 3000, 1001 Oc 2000, 1002. 1500, 1001 O d. 3000,1002. 3000, 1001

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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.