Oracle date winter 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

1 vote195 views1 answer
Continue in sql
SQL
1 vote153 views1 answer
Last 6 months postgresql
SQL
1 vote152 views1 answer
How to install mysql 8.0 windows service
SQL
27 votes173 views6 answers
Set password mysql
SQL
0 vote185 views1 answer
Sqlcl format
SQL
0 vote155 views1 answer
Aktor yang pernah terlibat lebih dari 3 film di sql
SQL
1 vote152 views1 answer
Restart identity postgresql
SQL
0 vote174 views1 answer
Datagrip exec
SQL
5 votes180 views1 answer
How to check port number for postgresql
SQL
0 vote154 views2 answers
Update all columns in one update
SQL