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This sample illustrates use of simple CASE function.
For each row in the dataset being retrieved, field "VenueNo" is compared to 2, and, if it is true, the string "Memorial Stadium" appears to the right of event name. If it is not true, then "VenueNo" is compared to 4, and if it equals to 4, string "Coliseum" appears. If "EventNo" matches neither 2 nor 4, ELSE part of the statement is executed and "unknown venue: VenueNo="is shown followed by value of the field "VenueNo".
select e1."Event_Name",
case e1."VenueNo"
when 2 then "Memorial Stadium"
when 4 then "Coliseum"
else "unknown venue: VenueNo=" + e1."VenueNo"
end as "Venue"
from "events" e1
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