case package:relational-query
nth column of case clause
Simple case operator correnponding SQL simple CASE. Like,
CASE x WHEN v THEN a WHEN w THEN b ... ELSE c END
Null default version of
case'.
Search case operator correnponding SQL search CASE. Like,
CASE WHEN p0 THEN a WHEN p1 THEN b ... ELSE c END
Simple case operator correnponding SQL simple CASE. Like,
CASE x WHEN v THEN a WHEN w THEN b ... ELSE c END
Search case operator correnponding SQL search CASE. Like,
CASE WHEN p0 THEN a WHEN p1 THEN b ... ELSE c END