PI_EXTIO and PI_PARTIC_EXTBL Tables
The Export process can write data to either an export file or an export table.
This diagram illustrates exporting data to either a file or table:
This diagram illustrates exporting data to either a file or table.

PI_EXTIO Table
In the PI_EXTIO table, the REC_DATA_PARTIAL field should contain the exact contents of the external file. However, if the record length of the external file exceeds 252 bytes, then the rows in PI_EXTIO are split and the RECDATA_SEQ_NO field is incremented.
PI_PARTIC_EXTBL Table
In the PI_PARTIC_EXTBL table, a row for each changed field is written and the SEQ_NUM field is incremented by 1 unless the field has a group ID assigned to it. For fields with group IDs, the same SEQ_NUM is applied to all fields in the group. For the sequence numbering logic to work properly, you must set up grouped fields correctly. For example, the DED group ID can be used to pair the Deduction Code and Deduction Amount fields. These two fields must adjoin each other on the record; fields without the DED group ID cannot be positioned between them.