Inexact Matching DateTimes

Scenario

Record written to different systems are timestamped when they are written. Timestamps may not match for a variety of reasons (system clocks out of sync, delays in writing, batch processing etc), but there may still be a need to reconcile an match records.

...

• Create a stream for each input.
• Create an calculate stream to perform the join.
• Make the pipe from one of the streams a pull pipe and the pipe from the other is a lookup pipe.
• In the join stream, for each record on the pull pipe, cycle thru all the records from the lookup pipe for that key and flag those records where there is a match based on a date range.
• Date ranges should be calculated based on converting dates to integers. Note : there is a dateDiff function in PhixFlow that will give the difference in milliseconds between 2 dates

See Also

• href="../../../../../../doc/training/Exercises.pdf">Patterns and Exercise Training Document
• href="http://www.phixflow-online.com:8081/patterns">PhixFlow Online Patterns and Training