Oracle date summer time

ALTER SESSION SET NLS_LANGUAGE=english; -- First day of week
SELECT
	-- Last Sunday of October at 02:00
	NEXT_DAY(LAST_DAY(TO_DATE(TO_CHAR('01/10/' 
        || (EXTRACT(YEAR FROM SYSDATE)-5 + level) || '02:00:00'), 
           'DD/MM/YYYY HH24:MI:SS')) - INTERVAL '7' DAY, 'SUNDAY') AS H_WINTER,
	-- Last Sunday of March at 02:00 (missing hour)
	NEXT_DAY(LAST_DAY(TO_DATE(TO_CHAR('01/03/' 
		|| (EXTRACT(YEAR FROM SYSDATE)-5 + level) || '02:00:00'),
		'DD/MM/YYYY HH24:MI:SS')) - INTERVAL '7' DAY, 'SUNDAY') AS H_SUMMER
FROM DUAL CONNECT BY level <=10;

Similar codes

4 votes339 views2 answers
Float postgres
SQL
2 votes360 views1 answer
Query to check cpu utilization in oracle database
SQL
3 votes347 views5 answers
Sql select
SQL
0 vote299 views1 answer
Select value from previous row in postgresql
SQL
44 votes416 views4 answers
Mysql alter table add column first
SQL
0 vote296 views1 answer
Check index sql server
SQL
4 votes273 views1 answer
Install postgres 12 on ubuntu
SQL
0 vote327 views2 answers
Functions with parameters SQL
SQL
0 vote327 views1 answer
Como hacer una consulta de un registro que no esta en una tabla en mysql
SQL
2 votes377 views3 answers
Sql delete duplicate
SQL