Initial data commit

Task/Exceptions/PL-pgSQL/exceptions-2.sql

@@ -0,0 +1,16 @@
+create function special_division(p_num double precision, p_den double precision) returns text
+as $body$
+begin
+   return p_num/p_den::text;
+EXCEPTION
+   when division_by_zero then
+      if p_num>0 then
+         return 'Inf';
+      ELSIF p_num<0 then
+         return '-Inf';
+      else
+         return 'INDEF';
+      end if;
+   when others then
+      raise;
+end;