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giacecco/gist:1c16bbfb65d75c7347dc

Last active August 29, 2015 14:23
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gistfile1.sql
DROP TABLE IF EXISTS temp_retired_postcodes;
CREATE TABLE temp_retired_postcodes AS (
SELECT DISTINCT pcd
FROM lr_9501_1504
WHERE pcd NOT IN (SELECT pcd FROM temp_active_postcodes)
);
SELECT COUNT(pcd) FROM temp_retired_postcodes;
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