Oracle sysdate - 1 month

SELECT sysdate - 1 FROM dual; 				-- Yesterday    12/01/2021 14:27:27
SELECT trunc(sysdate) - 1 FROM dual; 		-- Yesterday    12/01/2021 00:00:00
SELECT sysdate + INTERVAL '20' DAY FROM DUAL;		-- 20 days ahead (other way)
SELECT sysdate - 1 / 24 FROM dual;					-- 1 hour ago
SELECT sysdate - 1 / 24 / 60 FROM dual;				-- 1 minute ago
SELECT add_months(trunc(sysdate), -1) FROM dual;   	-- 1 month ago (no time)
SELECT trunc(sysdate) - 30 FROM dual;				-- 30 days ago (no time)
SELECT add_months(trunc(sysdate), -12*2) FROM dual;	-- 2 years ago (no time)

-- ⇓ Test it ⇓ (Fiddle source link)

Source: sqlfiddle.com

Similar codes

12 votes200 views2 answers
Select into insert sql server
SQL
0 vote197 views2 answers
Mysql dump structure only
SQL
2 votes184 views1 answer
Oracle to_char number format percentage
SQL
4 votes175 views4 answers
Sqlite describe table
SQL
0 vote185 views1 answer
Mysql config address
SQL
1 vote179 views1 answer
List all triggers in SQL Server
SQL
3 votes181 views3 answers
Into in sql
SQL
0 vote211 views1 answer
Mysql get nth highest
SQL
0 vote198 views1 answer
Insert ip address in mysql
SQL
0 vote240 views1 answer
Mysql, how to query the table comments?
SQL