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create table opros_res (dattim timestamp, n_op int, answ varchar(10)); ------------------------------------------------------ insert into opros_res values (TO_TIMESTAMP('16.01.2014 20:35', 'dd.mm.yyyy hh24:mi'), 1 , '1,4,6'); insert into opros_res values (TO_TIMESTAMP('16.01.2014 20:35', 'dd.mm.yyyy hh24:mi'), 1 , '3,3,3'); insert into opros_res values (TO_TIMESTAMP('27.01.2014 19:41', 'dd.mm.yyyy hh24:mi'), 3 , '6,5,2'); insert into opros_res values (TO_TIMESTAMP('29.01.2014 16:23', 'dd.mm.yyyy hh24:mi'), 3 , '1,6,7'); insert into opros_res values (TO_TIMESTAMP('30.01.2014 12:45', 'dd.mm.yyyy hh24:mi'), 4 , '7,4,5'); insert into opros_res values (TO_TIMESTAMP('30.01.2014 12:53', 'dd.mm.yyyy hh24:mi'), 5 , '6,1'); insert into opros_res values (TO_TIMESTAMP('01.02.2014 14:29', 'dd.mm.yyyy hh24:mi'), 9 , '2,7'); insert into opros_res values (TO_TIMESTAMP('06.02.2014 11:36', 'dd.mm.yyyy hh24:mi'), 3 , '2,1,6'); insert into opros_res values (TO_TIMESTAMP('10.02.2014 13:52', 'dd.mm.yyyy hh24:mi'), 2 , '7,1'); insert into opros_res values (TO_TIMESTAMP('15.02.2014 11:19', 'dd.mm.yyyy hh24:mi'), 3 , '5,3,2'); insert into opros_res values (TO_TIMESTAMP('17.02.2014 14:51', 'dd.mm.yyyy hh24:mi'), 7 , '6,7'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 13:11', 'dd.mm.yyyy hh24:mi'), 4 , '4,7'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 13:16', 'dd.mm.yyyy hh24:mi'), 5 , '1,3,6'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 13:26', 'dd.mm.yyyy hh24:mi'), 8 , '5,7'); insert into opros_res values (TO_TIMESTAMP('24.04.2014 13:26', 'dd.mm.yyyy hh24:mi'), 9 , '7,3,1'); insert into opros_res values (TO_TIMESTAMP('24.04.2014 14:39', 'dd.mm.yyyy hh24:mi'), 2 , '3,2,7'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 18:35', 'dd.mm.yyyy hh24:mi'), 1 , '3,2'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 18:36', 'dd.mm.yyyy hh24:mi'), 1 , '2,5,1'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 18:36', 'dd.mm.yyyy hh24:mi'), 1 , '7'); insert into opros_res values (TO_TIMESTAMP('24.02.2014 18:38', 'dd.mm.yyyy hh24:mi'), 8 , '1,5'); insert into opros_res values (TO_TIMESTAMP('27.02.2014 15:18', 'dd.mm.yyyy hh24:mi'), 6 , '1,5,3'); insert into opros_res values (TO_TIMESTAMP('05.03.2014 16:59', 'dd.mm.yyyy hh24:mi'), 3 , '6,7,2'); insert into opros_res values (TO_TIMESTAMP('12.03.2014 16:57', 'dd.mm.yyyy hh24:mi'), 1 , '4,6'); insert into opros_res values (TO_TIMESTAMP('20.03.2014 14:58', 'dd.mm.yyyy hh24:mi'), 4 , '3'); insert into opros_res values (TO_TIMESTAMP('24.04.2014 9:55', 'dd.mm.yyyy hh24:mi'), 8, '2,6,7'); ------------------------------------------------------ WITH NewTable AS ( SELECT TO_CHAR(dattim, 'MM.YYYY') AS month_year, TRIM(REGEXP_SUBSTR(answ, '[^,]+', 1, LEVEL)) AS answ FROM opros_res CONNECT BY PRIOR dattim = dattim AND PRIOR n_op = n_op AND LEVEL <= REGEXP_COUNT(answ, ',') + 1; ) SELECT * FROM NewTable