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How_to_retrieve_data_from_two_or_more_tables_2
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How_to_retrieve_data_from_t.../demo-queries-from slides-5.sql

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  1. SELECT DISTINCT v1.vendor_name, v1.vendor_city, 

  2.     v1.vendor_state

  3. FROM vendors v1 JOIN vendors v2

  4.     ON v1.vendor_city = v2.vendor_city AND

  5.        v1.vendor_state = v2.vendor_state AND

  6.        v1.vendor_name <> v2.vendor_name

  7. ORDER BY v1.vendor_state, v1.vendor_city;