This query joins the tracktime, schedules, and stops tables to retrieve the necessary data. The date_part('seconds',(t.arrival - s.arrival)) calculates the difference in seconds between the actual and scheduled arrivals for each stop along a route.where date_part('seconds',(t.arrival - s...
-- Difference in seconds select date_part('epoch', delivered_at) - date_part('epoch', shipped_at); -- or minute, hour, week, day, etc -- Alternatively, you can do this with `extract` select extract(epoch from delivered_at) - extract(epoch from shipped_at); ...
TheAGEdate function calculates how long ago an event occurred. It returns a value representing the number of years, months, and days an event happened or the difference between two given arguments. The syntax is pretty straightforward: applyAGE()to a single timestamp, and your query will retur...
## How to use date_diff in MySQL and PostgreSQL. MySQL. The DATE_DIFF() function in MySQL calculates the difference between two dates. The syntax of the DATE_DIFF() function is as follows: DATE_DIFF(date1, date2)。 where: `date1` is the start date. `date2` is the end date. Th...
3. Round the interval (above difference) to the nearest day using date_part() Use the following query to round the number of days to the nearest day. dbase=# select date_part('days', now() - date_of_join) as days from employee; ...
TheINTERVALis the count of the days from a timestamp or, in other words, its age. It won’t return the date; instead, the difference in the days between two specific dates. Subtract Argument From Current Date (At Midnight) Syntax: ...
Find all the details of orders where the difference between the first view date and order date is less than or equal to 10 days. Query: SELECT customer_id, order_amount, order_date, first_view FROM e_transactions WHERE date_part('day',age(order_date, first_view)) <= 10; ...
FunctionMySQLPostgreSQLBigQueryRedshiftPrestoGet difference between two dates at some specificityDATEDIFF()SubtractionDATE_DIFF()DATEDIFF()DATE_DIFF() Here’s how we’d use this in Postgres: 1#Get difference between two dates2SELECTDATE('2019-01-31')-DATE('2019-01-01')3-- 304 ...
一、配置环境 ArcGIS Server发布要素服务,需要安装ArcGISMap(或者ArcGIS SDE)和对应版本的直联数据库,此文以ArcGISMap10.3与PostgreSQL9.3直联为例,ArcGIS Server10.3安装在Windows Server2012服务器中,IP地址为:192.168.1.100 安装软件的步骤省略 在服务器端配置postgresql 1... ...
In this query, we used the julianday() function when calculating the difference between two dates/timestamps. This function returns the number of days, which is what we expect for the trip duration. The flight duration is better presented in hours – thus, we multiply the result by 24 to...