| teneo:circular loop on DB2 error [message #615872] |
Thu, 13 March 2008 21:03 |
 Julia
Messages: 85
Registered: July 2009 |
Member |
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Hi Martin,
I'm using teneo with DB2 and on certain section of my meta-data during my
database initialize returns me an error which is essentially a loop -
table a is connect to table b to table c to table a.
DB21034E The command was processed as an SQL statement because it was not
a valid Command Line Processor command. During SQL processing it
returned: SQL20254N FOREIGN KEY "NVGTNLMN_LYTLMNTR" is not valid since it
would cause
table "DB2INST1.NAVIGATIONELEMENT" to be delete-connected to itself
through a cycle that contains a delete rule of either RESTRICT or SET
NULL. Reason code = "1". SQLSTATE=42915
DB2 was able to pinpoint where this happens and am able to replicate it on
a small sample.
If I make a substitution change in one of the element (for loop:Text and
copy Text into Preference), the problem goes away.
eg
<xs:complexType name="Preference">
<xs:sequence>
<xs:element name="value" type="loop:Text" minOccurs="0"
maxOccurs="unbounded"/> <--- use actual Text here
</xs:sequence>
<xs:attribute name="name" type="xs:string" use="required"/>
</xs:complexType>
I'm not sure if this is a bug or not. Perhaps changing my settings on how
I generate jdo might be a workaround for this problem. Currently I am using
FETCH_CONTAINMENT_EAGERLY = "true"
JOIN_COLUMN_NAMING_STRATEGY = "simple"
MAXIMUM_SQL_NAME_LENGTH = "18"
INHERITANCE_MAPPING = JOINED/SINGLE_TABLE (tried both)
Is there any other settings that you think I can try? I sent you my simple
sample just in case you want to try it. Thanks.
Julia
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