Extracting house numbers from a string
Addresses for the Queens borough of New York City are unique in that they often include dashes in the house number component of the street address. For example, for the address 86-16 60 Ave, the house number is 16, and 86 refers to the closest cross street. Therefore, if we want the house_number to strictly represent the house number where a parking violation occurred, we need to extract the digits after the dash (-) to represent this value.
In this exercise, you will use STRPOS(), SUBSTRING(), and LENGTH() to extract the specific house number from Queens street addresses.
この演習はコースの一部です
Cleaning Data in PostgreSQL Databases
実践的なインタラクティブ演習
このサンプルコードを完成させて、この演習に挑戦してみましょう。
SELECT
-- Find the position of first '-'
___(___, ___) AS dash_position
FROM
parking_violation;