What is the fastest way to check a set of individual data lines against a from to range ?
Batch:
LOAD
batch_number,
invoice_number_from,
invoice_number_to
resident batch_header;
Invoices:
LOAD
batch_number,
invoice_number,
...
resident invoice_header;
Table Batch contains a range of invoices asked with a from and to invoice number. 1 row per batch_number
Table Invoices containts my actual invoices. 1 row per batch_number / invoice_number
However, for some reason, table Invoices sometimes does not contain some invoices as they cannot be processed by the interface process.
How can I easily script this ? I have the invoice_number_to and invoice_number_from in table Batch and I want to check which invoice numbers in between the range cannot be found in the table Invoices. Below is an example
Table Batch :
batch_number invoice_number_from invoice_number_to
123456 12568 12574
Table Invoices:
batch_number invoice_number
123456 12568
123456 12569
123456 12571
123456 12572
123456 12573
The result I want to get is a table with 12570 and 12574 as these numbers are within the interval but cannot be found in table Invoices
I guess the easiest way might be to transform the Table Batch into a multi row table and then check the generated invoice numbers against the Invoices table, but what is the easiest way to do this ?
