how to find records in a table which contains same value in some field after finding insert to another table in a single record

Hi All,

I have a table which is look Like below

CatoID    OrderNo   CustomerNo  UID     BatchNo   Quantity 

1008          1032                                XAR/02  123            0.26

1008           1032                                XAR/02  65463        1.5     

1009            1032                               XAR/02   123             0.26

1010             1032                             XAR/02     123            1.1

Now I have another table which is Looking Like Below

OrderNo    UID      BAtchNo      quantity

1032         XAR/02    123             1.62

I mean when three fields are same then all quantity fields are added and then Insert multiple record in a single records.

I alrerady searched on google but nothing i found

so pls give me code for this or any good link for this

Thanks

Avinash