Splitting house numbers with a delimiter
In the previous exercise, you used STRPOS()
, LENGTH()
, and SUBSTRING()
to separate the actual house number for Queens addresses from the value representing a cross street. In the video exercise, you learned how strings can be split into parts based on a delimiter string value.
In this exercise, you will extract the house number for Queens addresses using the SPLIT_PART()
function.
This exercise is part of the course
Cleaning Data in PostgreSQL Databases
Exercise instructions
- Write a query that returns the part of the
house_number
value after the dash character ('-'
) (if a dash character is present in the column value) as the columnnew_house_number
.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
SELECT
-- Split house_number using '-' as the delimiter
___(___, ___, ___) AS ___
FROM
parking_violation
WHERE
violation_county = 'Q';