在SQL Server的一个查询中使用外键同时将新数据插入到多个表中

Question

I have two tables:

tblDepartment :

Id    Name

and

tblEmployee :

Id    FullName    Dept_ID

Dept_ID is a foreign key for tblDepartment

I want to insert a new record into both tables.

I tried this:

declare @id int 

insert dbo.tblDepartment
   select Name='Name1'

select id = scope_Identity()

insert dbo.tblEmployee 
   select FullName = 'Name1' 

select Dept_Id=@id
select Id=@id

However, this is not working. I searched through other posts, but they contain solutions for inserting existing data from one table into another, not creating a new record. How can I do this in one query?

Answer 1

You need to use variables properly along with column lists for inserts. Assuming you are using SQL Server:

declare @id int ;

insert dbo.tblDepartment(Name)
    select 'Name1';
select @id = scope_Identity();

insert dbo.tblEmployee(FullName, Dept_Id)
    select 'Name1', @id;

Also, scope_identity() is okay for learning about such id's. The safe way to really get this information is to use the output clause.

Answer 2

declare @id int 

insert dbo.tblDepartment(Name)
select 'Name1'
-- Don't insert any other statements before next line...
select @id=scope_Identity()


insert dbo.tblEmployee(Fullname, Dept_ID) 
select 'Name1',  @id