mysql> select qin, qout, yield, reject FROM yield WHERE date BETWEEN '11/01/2003' AND '01/31/2004';
hi...
i have this sql statement that does not extract the query i want
It did not even extract anything
this is how the table look like
+-----------+------------+
| job | date | lot | qin | qout | yield | reject | report | dir |
+-----------+------------+
| HDMP-0440 | 01/31/2004 | 321 | 15 | 15 | 100 | 0 | yield | /home/student |
| HDMP-0440 | 11/31/2003 | 456 | 15 | 15 | 100 | 0 | yield | /home/student/htm |
so how do i change this sql query?
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As Roonaan already suggests this problem is mos likely caused by the date format that you use in your SQL. Even though the format you use in your SQL matches the one in the output of the SELECT it can still cause problems. It is best to use a format that leaves no room for wrong interpretation. The format Roonaan suggests could work, but on the MySQL site they tend to favour a format without any separators in there, like "20040131".
I did some extra checks in the MySQL online documentation and found that they actually normally use separators in their date values, like
'1997-10-04 22:23:00'.
If you really want to play it safe you should probably convert the string to a data using the MySQL STR_TO_DATE function. This allows you to specify your own data format, so it can be anything you want. Something like STR_TO_DATE('03/10/2003', '%m.%d.%Y') should work for the values you specified in your question.
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by: RoonaanPosted on 2004-09-27 at 02:06:56ID: 12158506
possibly: BETWEEN "2003-11-01" AND "2004-01-31"
-r-