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SELECT statement with CASE and CAST

Posted on 2014-09-18
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Last Modified: 2014-09-22
i am trying to return a string value when a timestamp field value is null.  below is my select statement.  I am getting an error message on the data type.  Can I use the cast() as varchar to resolve?

select
first_name,
last_name,
case when table.event_id = 5 and table.timestamp isnull then 'n/a' else table.timestamp end as ad_timestamp

from XXXXXX
0
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Question by:szadroga
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3 Comments
 
LVL 46

Expert Comment

by:Kent Olsen
ID: 40330359
All possible values returned in the CASE construct have to be the same datatype.

Cast the datetime/timestamp to any character (string) type and you'll be fine.


Good Luck!
Kent
0
 

Author Comment

by:szadroga
ID: 40330364
where do I perform the cast() in my syntax?  I cannot get it to work
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LVL 46

Accepted Solution

by:
Kent Olsen earned 2000 total points
ID: 40330370
select
first_name,
last_name,
case when table.event_id = 5 and table.timestamp isnull then 'n/a'
else cast (table.timestamp as varchar (20)) end as ad_timestamp
from XXXXXX
0

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