WebJan 9, 2013 · SELECT (date_trunc ('MONTH', now ()) + INTERVAL '1 MONTH - 1 day')::date; plsql Function CREATE OR REPLACE FUNCTION last_day (date) RETURNS date AS $$ SELECT (date_trunc ('MONTH', $1) + INTERVAL '1 MONTH - 1 day')::date; $$ LANGUAGE 'sql' IMMUTABLE STRICT; Hope this helps. Share Follow answered Jan 9, … WebDATE_TRUNC. Truncates a DATE, TIME, or TIMESTAMP to the specified precision. Note that truncation is not the same as extraction. For example: Truncating a timestamp down to the quarter returns the timestamp corresponding to midnight of the first day of the quarter for the input timestamp. Extracting the quarter date part from a timestamp ...
postgresql - LAST_DAY function in postgres - Stack Overflow
WebAug 27, 2024 · SELECT DATE_TRUNC('month',calendar_date) AS Month, COUNT(DISTINCT USER) AS active_users FROM usage GROUP BY 1 8. Last_day. Last_day returns the date of the last day of the month that contains the given date. For instance, you can use it to check if a year is a leap year, how do sales vary in the last … WebJan 1, 2024 · The Oracle PL/SQL TRUNC function is used to truncate a date value to a specific level of precision. This function is commonly used to remove the time portion of a … ray ban oxford street
sql - How to truncate a date to the first day of the month in Snowflake …
WebSep 12, 2024 · 1 Answer Sorted by: 9 Your question borders on just being a typo, but from what I could find the date/time unit first parameter to date_trunc needs to be in single quotes: select date_trunc ('HOUR', current_date - interval '1' hour); OR select date_trunc ('HOUR', current_date); WebApr 13, 2024 · 1、sysdate:查询当前日前包含时间 select sysdate from dual; 2、length(str):返回字符串的长度,str 表示一个字符串 select length ('aa') from dual; select ename, length (ename) from emp;--查询姓名有6个字符的员工信息 select * from emp where length (ename) = 6; 3、concat(str1,str2):str1,str2都是字符串,将字符串str1 和 str2 拼 … WebOct 6, 2015 · What is DATE_TRUNC()? DATE_TRUNC() is a function used to round or truncate a timestamp to the interval you need. When used to aggregate data, it allows you to find time-based trends like daily … simple plain basic bathroom