computed column calculate a value based on different table

Posted by adnan on Stack Overflow See other posts from Stack Overflow or by adnan
Published on 2010-05-04T21:10:36Z Indexed on 2010/05/04 21:18 UTC
Read the original article Hit count: 189

Filed under:

sql

|

sql-server-2008

|

computed-columns

i've a table c_const

 code  |  nvalue
 --------------
 1     |  10000
 2     |  20000

and i've another table t_anytable

 rec_id |  s_id  | n_code
 ---------------------
 2      |  x     | 1

now i want to calculate the x value with computed column, based on

 rec_id*(select nvalue from c_const where code=ncode)

but i get error "Subqueries are not allowed in this context. Only scalar expressions are allowed."

how can i calculate the value in this computed column ?

thanks.

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