在Oracle SQL中将行转换为列

Question

Hi i want to convert column into rows. Can anyone please tell me how can i do it.

Input:-

id name
10 shruti
20 Wipro

Output should be

id   10     20
name shruti wipro

Please note there can be n number of columns. What would be the most efficient way of doing it.

Answer 1

declare
sqlqry clob;
cols clob;
begin
 select String_agg('''' || id || ''' as "' || id || '"', ',') 
 into   cols
 from   (select distinct id from your_table);


 sqlqry :=
  '      
  select * from
 (
  select *
  from your_table
 )
 pivot
(
max(name) for id in (' || cols  || ')
 )';

execute immediate sqlqry;
end;
/