[sssmartie]

Greetings!
I'm trying to write a stored procedure that has to enter a nvarchar value and an xml value into a table which the table name is also given as a variable(@lesson),as below:

create procedure q
@lesson  nvarchar(50),@desig nvarchar(30),
@xme xml
as declare @st nvarchar(200)

set @st='Insert into '+ @lesson+ ' (designer,exam) values ('+@desig +','+@xme +')'
exec(@st)

but i get the following error:"Msg 402, Level 16, State 1, Procedure q, Line 7
The data types nvarchar and xml are incompatible in the add operator."

How can I enter the xml variable along the nvarchar variable in the table?
Any idea?!
Thanks in advance

[sssmartie]

BTW:I forgot to mention i'm using SQL server 2005