I suspect hippo's suggestion that you use a RDBMS' native capabilities is a better idea than this regex alternate... but nonetheless:

  1. if the (supposedly matching) lat/lon values are inconsistent by no worse than 9, simply compare the initial six digits of each lat and first five digits of the lon (in each case with an unspecified trailing digit and end_of_string, $, marker). That could produce false positives, but if my fingers-and-toes math is correct, the addresses would have to be fone-booth size properties to match.
  2. Similarly, but using your variance of 10, use five digits of lat and four of lon with two unspecified trailing difits. Caution: this is going to be a lot more squiggly.

Spirit of the Monastery


In reply to Re: CSV Cross Referencing by ww
in thread CSV Cross Referencing by Jalcock501

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