Associate Change Date

The change date attribute is useful when incoming data's change date is other than current date. AttributeQuality has a property to point to an attribute which contains the name of change date of the attribute. This is useful when incoming data's change date is other than the current date. This attribute, if set, cannot be null for its value to be considered. The ChangeDate Attribute should always be set to TIMESTAMP.

The associate change date is considered only when the new-computed weight equals the old-computed weight.

For example,

ORCL source has a weight of 90.

SAP source has a weight of 90.

Record1 came from the ORCL source and was modified on 2015-09-28 3:14:07.

The same Record1 comes from the SAP source on Sep/29/2015 with the ChangeDate Attr as 2015-08-28 3:14:07.

Therefore, when the precedence is applied, the ORCL data is retained as the change date of the SAP source is older than the ORCL source.

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