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As mentioned, the ptoassigneend_us_extracted is cleaned. This section works on the remaining records which are stored in ptoassigneend_us_temp.==== Output: ptoassigneend_us_identify0 ====
====* zip that is a zip====
====*state that is a state====
====*city that is a city====
==== Output ==== * The table ptoassigneend_us_identify1 This table stores records that meet all the requirements above: zip with 5-4 or 5 digits, state not null or not spaces, and city in ptoasigneend_us_citylist.
* Store remaining records in ptoassigneend_us_temp2. ==== Output: ptoassigneend_us_identify2 ==== Part of 'city' contains punctuation. Remove punctuation marks, and then match 'city' with ptoassigneend_us_citylist.
CREATE TABLE ptoassigneend_us_temp3 AS
Output: The output is ptoassigneend_us_identify2.
Patent Assignment Data Restructure (view source)
Revision as of 12:12, 2 May 2017
, 12:12, 2 May 2017→Identify Clean Data
=== Identify Clean Data ===
As mentioned, the ptoassigneend_us_extracted is cleaned. Copy all the records in ptoassigneend_us_extracted to ptoassigneend_us_identify0. ==== Output: ptoassigneend_us_identify1 ==== The following section works on the remaining records which are stored in ptoassigneend_us_temp. First, filter out records with city that is a city, zip that is a zip, state that is a state. Note: The consistency between city and state or city and postcode is not checked in this section.
* ptoassigneend_us_citylist
Select distinct clean city records in ptoassigneend_us_extracted and store them in ptoassigneend_us_citylist (775).
Since the city list is not long, I briefly cleaned the list by hand, and stored it in updated the ptoassigneend_us_citylist (730).
Match the pattern 5-4 or 5 digits.
Select distinct state records with
The output shows that all the records not null or not spaces are valid state names.
One option to identify clean city is to find records that match ptoassigneend_us_citylist.
-- SELECT 2603422
SQL Code:
SELECT 2511356
SELECT *, replace(city, ',', '') clean_city
FROM ptoassigneend_us_temp2;
# SELECT 1055874
SQL code:
CREATE TABLE ptoassigneend_us_identify2 AS
SELECT *
