How to have customised order in a SQL query

Question

say there is a column name ename having values shailesh,Shailesh,ruchi,Ramesh,carl,Celin
i need a order of
carl,Celine,ruchi,Ramesh,shailesh,Shailesh
how to do that

Answer 1

it will certenlly help, try this one-
First u need to create a function to change the case. e.g.-
create or replace function chg_case(str varchar2) return varchar2 is
chr char(1);
nstr varchar2(255);
begin
for i in 1..length(str) loop
chr := substr(str,i,1);
if chr = Upper(chr) then
nstr := nstr| |lower(chr);
else
nstr := nstr| |upper(chr);
end if;
end loop;
return nstr;
end;
now see the the result of this query-
1 select name from (
2 select name, upper(substr(name,1,1)) lcs, substr(chg_case(name),1,40) nm from tst order by 2,3
3* ) t
SQL> /
NAME
carl
Celin
ruchi
Ramesh
shailesh
Shailesh
6 rows selected.
null