Concat all column values in sql

Question

How to concat all column values from differenct rows returned from a sql query into one value? This is an example:

a query returns:

FOO
------
RES1

RES2
         


        

Answer 1

Edit: Since version 8.4.0 CUBRID provides 90% compatibility with MySQL. Thus, it supports GROUP_CONCAT which has similar syntax as in MySQL:

CREATE TABLE t(i int);
INSERT INTO t VALUES (4),(2),(3),(6),(1),(5);

SELECT GROUP_CONCAT(i*2+1 ORDER BY 1 SEPARATOR '') FROM t;

group_concat(i*2+1 order by 1 separator '')
======================
  '35791113'

Quite powerful, isn't it? And below is an alternative solution supported natively in CUBRID.

SELECT MAX(SYS_CONNECT_BY_PATH(s_name, '')) AS conc_s_name
FROM (
     SELECT ROWNUM AS r, s_name FROM code
) AS res
START WITH r = 1
CONNECT BY PRIOR r = r - 1;

It's so interesting that this way of concatenating different row column values in CUBRID is almost identical to Oracle's way as provided by @devio. In CUBRID it looks a little bit easier though.