对于id，如果值永远是错误的，那么它总是错误的SQL

Question

I have a data set where I created a value that based on some criteria I get True/False based on some prior values. Now if my member is ever a False they need to have 1 record in which they are always False. Data is similar to below

ID| Indicator
1  | TRUE    
1   | TRUE   
2   | FALSE 
3   | TRUE   
3   | FALSE  

I want it to look like this

ID  |  Indicator
1   |  TRUE
2   | FALSE
3   | FALSE

But I'm not sure how to do this in Teradata

Answer 1

Teradata does not support a boolean type. So, I will assume the indicator is a string.

In that case, the simplest method is min() :

select id, min(indicator)
from t
group by id;

Answer 2

Based on sample data, i would do :

SELECT DISTINCT t.id,
       (CASE WHEN EXISTS (SELECT 1 
                          FROM table t1 
                          WHERE t1.id = t.id AND t1.Indicator = 'False'
                         ) 
             THEN 'False' 
             ELSE 'TRUE' 
        END) AS Indicator
FROM table t;