Comparison of application server file against custom table

Hello All,

I have a file in application server and I read it line by line. There are predefined fields in the record which should be compared against values maintained in a custom table and if matches then should be updated in a z table. The file is huge and the logic already in place is consuming time and hence we are eying the possibility to do it through amdp. Can someone guide as to how to start with the same?

Example:

The file data is seperated by ;If the second value in the current record is either a,b,c,d(to be checked against the custom table) and if fourth data in the current record is either 1,2(check the table) then a custom table is to be updated.

Thanks,

Prem