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From Apache Wiki <wikidi...@apache.org>
Subject [Ws Wiki] Update of "Tuscany/TuscanyJava/DAS Java Overview/RDBDAS Java User Guide/Partial Update" by KevinWilliams
Date Mon, 02 Oct 2006 17:56:18 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Ws Wiki" for change notification.

The following page has been changed by KevinWilliams:
http://wiki.apache.org/ws/Tuscany/TuscanyJava/DAS_Java_Overview/RDBDAS_Java_User_Guide/Partial_Update

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  = Partial Update =
  
- The RDB DAS uses the SDO Change Summary to generate a set of database write operations.
 Rather than generated a statment to update all columns in a table that maps to a SDO DataObject
Type, the DAS generates statements that update ony those columns that map to a modified DataObject
property.  For example, consider a Customer DataObject that has had the LastName property
changed.  The update statement generated by the DAS will look somthing like this:
+ The RDB DAS uses the SDO Change Summary to generate a set of database write operations.
 Rather than generated a statment to update all columns in a table that maps to a SDO DataObject
Type, the DAS generates statements that update ony those columns that map to a modified DataObject
property.  For example, consider a Customer DataObject that has had the LastName property
changed.  The '''partial update''' statement generated by the DAS will look somthing like
this:
  {{{
     UPDATE CUSTOMER SET LASTNAME = ? WHERE ID = ?
  }}}

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