troubleshooting Question

Using left outer join in SQL

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chokkaFlag for United States of America asked on
Microsoft SQL ServerMicrosoft SQL Server 2005Microsoft SQL Server 2008
4 Comments1 Solution612 ViewsLast Modified:
select    table1.column_id,
             table1.column_type,
             table2.column_name
from     table1
left outer join table2
on         table1.column_type = table2.column_numb

In Table 1

column_id                  column_type
1                                     NULL
2                                      NULL
3                                     300


In Table 2

table2_column_id       column_numb   column_name
1                                  100                     ABC
2                                   200                    DEf
3                                  300                     GHI


Expected value

column_id                  column_type       column_name
1                                     NULL                 NULL
2                                      NULL                NULL
3                                     300                     GHI


My query is not picking the NULL Values. What could be the reason ??
ASKER CERTIFIED SOLUTION
EugeneZ
SQL SERVER EXPERT

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