Question

I have a teradata table. Now I need to add a column, say, Flag and insert values into the Flag column which will depend on say, Sales. Flag=1 if Sales greater than x or Flag=0.
Here is the structure of Table at present

Sales    Date 
 10    11/11/1987
 20    12/13/1987

I want it like the following way

Sale    Date       Flag
 10   11/11/1987    0
 20   12/13/1987    1

I tried to look for such problems on the forums but couldn’t find any. Excuse if you find any duplicate problems.

Answer 1

What you want to use here is a CASE statement:

UPDATE teradata_table
SET flag = CASE WHEN sales > 10 THEN 1 ELSE 0 END;