我有3个表格(Users,CourseUsers和Courses,这些表格是分配给单一用户的课程。
我愿建立一种程序,一旦我开设新课程,将向所有用户提供这一课程。 我在这里需要的是。 每一份通过每个用户在<代码>上插入一个新的行文。 课程表
How do I create a loop in SQL?
你们不需要 lo。
DECLARE @CourseId INT;
INSERT INTO Courses(Name) VALUES( Some Course );
SET @CourseId = SCOPE_IDENTITY();
INSERT INTO CourseUsers(UserId, CourseId)
SELECT UserId, @CourseId
FROM Users;
在这种情况下,你没有。
您可以发表一份声明,在课程表中为每个用户插入新的一行:
INSERT INTO CourseUsers(CourseId, UserId)
SELECT @CourseId, UserId
FROM Users
卡塔语是一种固定语言:通常,你可以编制一套完整的数据,不需要住宿。
你们无需这样做。
http://msdn.microsoft.com/en-us/library/ms189799.aspx”rel=“nofollow”
Try -
INSERT INTO CourseUsers (CourseID,UserID)
SELECT 7, UserID FROM Users
如果是你的教程,那么(这显然会从头到尾!)
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