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The following page has been changed by KevinWilliams: http://wiki.apache.org/ws/Tuscany/TuscanyJava/DAS_Java_Overview/RDBDAS_Java_User_Guide/Partial_Update ------------------------------------------------------------------------------ - = Partial Update = + = 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: + {{{ + UPDATE CUSTOMER SET LASTNAME = ? WHERE ID = ? + }}} + Rather than a statement that updates all columns like this: + {{{ + UPDATE CUSTOMER SET FIRSTNAME = ?, SET LASTNAME = ?, SET ADDRESS = ?, SET PHONE = ?, SET AGE = ?, SET SHOESIZE = ? WHERE ID = ? + }}} + --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
