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By: a guest on May 1st, 2012  |  syntax: None  |  size: 0.23 KB  |  hits: 10  |  expires: Never
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  1. PostgreSQL ORDER BY issue - natural sort
  2. em_code  name
  3. EM001    AAA
  4. EM999    BBB
  5. EM1000   CCC
  6.        
  7. SELECT * FROM employees ORDER BY substring(em_code, 3)::int DESC
  8.        
  9. SELECT regexp_replace(em_code, E'\D','','g')
  10. FROM employees
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