I had a conversation with a customer regarding the measurements of DATA CAPTURE CHANGE (DCC) impact and the discussion ended up Db2 Log reporting. <br/><br/>What I have noticed, IBM LAT has Extended Report. In this report, there is a field called <br/>Byte count : The total number of bytes contained within the log record. These byte counts are totaled at the end of the extended report.<br/><br/>It says, "The byte count fields can be useful in comparing table activity as logged with and without DATA CAPTURE CHANGES. This DB2 option determines if full row<br/>images are logged, or just the changed portions of the row are logged. Using this report, you can easily identify the extra amount of logging that can occur with this<br/>option in effect."<br/>But it seems you would have to actually turn on DCC and then compare the 'byte counts' for both cases,<br/><br/>It looks like CA Log Analyzer was doing some sort of 'projection' about how DCC would change the amount of logging without actually having to on DCC.<br/>https://docops.ca.com/ca-log-analyzer-for-db2-for-z-os/18-0/en/using/using-data-capture-changes<br/><br/>Looks like LAT has room to be improved.