Delete SEP client multiple entries from SEPM

Hi Team,

We have migrated 11000 clients out of 26000 from old 11.x to new SEPM using sylink replace but client entries are still on old SEPM which we need to delete from there. Now we are verifying client one by one and deleting from Old SEPM which taking long time to complete. If anyone having any query which can be run on SQL or any other option is available.

We exported list of systems from both SEPM and collected duplicate using vlookup command in excel.

Please don't suggest to reduce the number of days for non reporting clients.

Thanks in advanced.

Regards,

S2S