I think it's probably Data Studio trying to format your dates in the display using whatever the locale in your environment. The JDBC specification is very specific (duh!) in the format a date or timestamp field is presented to the java layer. The driver is bound to make the same presentation whether it is JT400 or Oracle or ????. It puts the date into a java.sql.Date object. Then whatever presentation layer Data Studio is using converts the java.sql.Date object into the format it thinks you want to see based on your locale object.
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Jon Paris
Sent: Tuesday, June 18, 2013 2:24 PM
Subject: JDBC connection string
I'm not sure if this is a doc error or just me but ...
When I use the JT400/JDBC driver in Data Studio, unless I specify the date format on the connection string all displays of dates from a SQL statement are shown in MDY. If I specify ISO I get the results I want. OK but the docs (http://javadoc.midrange.com/jtopen/com/ibm/as400/access/doc-files/JDBCProperties.html#format
) say that the date format is only used for date literals - so why does it affect my non-literal results? Is the doc just wrong? The same issue seems to exist on IBM's ODBC driver which has a similar description.
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