SQL Server: How to set column alias from another table during select?

Question

I have 2 tables

Table 1:

DB1, DB2, DB3, DB4, DB5, Some other identifiers

Table 2:

EnumText, EnumValue, Some other ident         


        

Answer 1

You can't have dynamic aliases without dynamic SQL. If you did change the resultset column names, how do you access them via name? (I wouldn't use index because it will break)

So, you can add a fixed column to describe it. And read that

Select 
    DB1, foo.EnumText AS DB1EnumText, 
    DB2, 
    DB3 
from 
    Table1
    CROSS JOIN
    (Select EnumText from Table2 where EnumValue='DB1') foo