ssis - Capturing the max value in a data flow -

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i'm getting ssis after several years of not using it. here need do. 

1) read value table , store variable 2) create data flow retrieve number of rows     having value greater value retrieved in #1. 3) store rows retrieved in #2 table 4) determine maximum value of particular column rows     read in step #2 , update table referenced in #1.

the first 3 steps easy, straightforward , working. however, i'm not best way accomplish #4.

best can subjective straight forward mechanism add multicast component prior destination.

the multicast allow data flowing through pipeline show in more 1 stream. done through pointers actual data buffers , doesn't result in physical copies of data being strewn about.

from multicast, connect aggregate component , perform max operation on whatever column you're using.

you know have 1 row coming aggregate i'd use ole db command component update table #1. like

update etlstatus set maxvalue = ? packagename = ?;

and you'd map column names in like

maxvalue => parameter_0 packagename => parameter_1

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