Oracle sql 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

5 votes341 views2 answers
Get number of columns sql
SQL
0 vote370 views1 answer
Create table using the clause with as
SQL
12 votes353 views4 answers
How to check mysql version ubuntu
SQL
0 vote362 views1 answer
Create-table-with-index-organization
SQL
0 vote357 views1 answer
Manage Database in MySQL
SQL
0 vote374 views1 answer
Sql basic commands
SQL
0 vote328 views1 answer
Difference between db.query and db.execute
SQL
0 vote385 views1 answer
Mariadb change column type
SQL
2 votes351 views1 answer
Coalesce sql
SQL
3 votes350 views1 answer
Sql print all names that start with a given letter
SQL