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MySQL Cookbook
book

MySQL Cookbook

by Paul DuBois
October 2002
Intermediate to advanced content levelIntermediate to advanced
1024 pages
27h 26m
English
O'Reilly Media, Inc.
Content preview from MySQL Cookbook

Telling MySQL How to Display Dates or Times

Problem

You want to display dates or times in a format other than what MySQL uses by default.

Solution

Use the DATE_FORMAT( ) or TIME_FORMAT( ) functions to rewrite them.

Discussion

As already noted, MySQL displays dates in ISO format unless you tell it otherwise. To rewrite date values into other formats, use the DATE_FORMAT( ) function, which takes two arguments: a DATE, DATETIME, or TIMESTAMP value, and a string describing how to display the value. Within the formatting string, you indicate what to display using special sequences of the form %c, where c specifies which part of the date to display. For example, %Y, %M, and %d signify the four-digit year, the month name, and the two-digit day of the month. The following query shows the values in the date_val table, both as MySQL displays them by default and as reformatted with DATE_FORMAT( ):

mysql> SELECT d, DATE_FORMAT(d,'%M %d, %Y') FROM date_val;
+------------+----------------------------+
| d          | DATE_FORMAT(d,'%M %d, %Y') |
+------------+----------------------------+
| 1864-02-28 | February 28, 1864          |
| 1900-01-15 | January 15, 1900           |
| 1987-03-05 | March 05, 1987             |
| 1999-12-31 | December 31, 1999          |
| 2000-06-04 | June 04, 2000              |
+------------+----------------------------+

Clearly, DATE_FORMAT( ) tends to produce rather long column headings, so it’s often useful to provide an alias to make a heading more concise or meaningful:

mysql> SELECT d, DATE_FORMAT(d,'%M %d, %Y') AS date FROM ...
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Publisher Resources

ISBN: 0596001452Catalog PageErrata