Given two tables Teachers and Courses, which SQL query retrieves the list of teachers along with the names of the courses they are currently teaching?
Question
Given two tables Teachers
and Courses
, which SQL query retrieves the list of teachers along with the names of the courses they are currently teaching?
Solution
Assuming that there is a common column in both tables that links a teacher to a course they are teaching (let's say it's called 'teacher_id'), you can use the SQL JOIN statement to combine rows from these two tables based on this common column. Here is a step-by-step guide on how to write the SQL query:
-
Start with the SELECT statement. This specifies the columns you want to retrieve. In this case, you want the teacher's name and the course's name. Assuming these are stored in columns called 'teacher_name' and 'course_name', your query starts like this:
SELECT Teachers.teacher_name, Courses.course_name
-
Next, specify the tables you are retrieving data from. In this case, it's the Teachers and Courses tables. You want to combine these tables based on a common column, so you use the JOIN statement. Assuming the common column is 'teacher_id', your query now looks like this:
SELECT Teachers.teacher_name, Courses.course_name FROM Teachers JOIN Courses ON Teachers.teacher_id = Courses.teacher_id
-
If you only want to retrieve the teachers that are currently teaching a course, you would need to add a WHERE clause that specifies this condition. However, without more information about how the database is structured, it's impossible to provide the exact SQL for this step.
So, the final SQL query would look something like this:
SELECT Teachers.teacher_name, Courses.course_name FROM Teachers JOIN Courses ON Teachers.teacher_id = Courses.teacher_id
Please replace 'teacher_name', 'course_name', and 'teacher_id' with the actual column names used in your database.
Similar Questions
Select ________ dept_namefrom instructor;Here which of the following displays the unique values of the column?FromNameDistinctAll
Use a Self Join and display the last name of each Instructor and the last name of their Department Chair. Label each column
SELECT nameFROM instructorWHERE dept name = ’Physics’ORDER BY name;By default, the order by clause lists items in ______ order.AnyAscendingSameDescending
Write a MySQL statement to sort the students in descending order of the last name
Select ________ dept_namefrom college;Here which of the following displays the unique values of the column ? AllFromDistinctNameReview AnswerNext
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.