Your university runs many hundreds of courses each semester and needs to keep track of key information on each one. Among the data needed for each course would be the following: - University course identification number - Department course ID and section number (for multiple sections of the same course) - Number of credits for the course Days and times the course meets - Room in which the course meets (building ID and room number) Maximum course enrollment Campus on which the course is held - Name of the course instructor - Number of students currently enrolled and the student ID of each such student - Course status: open (for additional enrollment), closed, or canceled You must be able to change the value of each of these ten data items and, upon request, display all of this information. Initially, the values of the first seven items are known–the last three aren't. Design and implement an abstract data type that can be used to model this university course entity.

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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.