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Date Handling

SQL can handle many date calculations. This four-part series will show you how to do date calculations against your database and get reports based on specific periods of time. This article, the first in the series, is excerpted from chapter four of the book SQL Hacks, written by Andrew Cumming and Gordon Russell (O'Reilly, 2006; ISBN: 0596527993). Copyright 2006 O'Reilly Media, Inc. All rights reserved. Used with permission from the publisher. Available from booksellers or direct from O'Reilly Media.

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By: O'Reilly Media
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December 06, 2007
  1. · Date Handling
  2. · Convert Your Dates
  3. · Parse Dates with Oracle
  4. · Parse Dates with MySQL

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Date Handling - Parse Dates with MySQL
(Page 4 of 4 )

MySQL has a similar function, calledSTR_TO_DATE. This works with the format strings in MySQL format:

  INSERT INTO d VALUES (STR_TO_DATE('1 Jun 2006', '%d %b %Y'));

%brepresents the abbreviated month name,%dis the day of the month, and%Yis a four-digit year.

Parse Dates with SQL Server

If your input format is a fixed size (with leading zeros), combine theSUBSTRINGfunction to build the string. Convert a string such as'06/18/2006'into a date:

      FROM (SELECT '06/18/2006' AS x) y;

Please check back next week for the continuation of this article.

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