Question

I have 3 tables (Users, CourseUsers and Courses which represent the courses assigned to a single user).

I would like to create a procedure which, as soon as I create a new course, will assign this course to every user. What I see I need here is a For each loop to iterate through every user inserting a new row in CourseUsers table

How do I create a loop in SQL?

Answer 1

You don’t need a loop.

DECLARE @CourseId INT;

INSERT INTO Courses(Name) VALUES('Some Course');

SET @CourseId  = SCOPE_IDENTITY();

INSERT INTO CourseUsers(UserId, CourseId)
SELECT UserId, @CourseId
FROM Users;