The following table describes the columns in the IMPSRC sequential file:
| Column | Type | Displacement | Length | Domain | 
|---|---|---|---|---|
| FILETYPE | CHARACTER | 001-004 | 4 | DB2D or ADAD or SEQ | 
| CPYLIB | CHARACTER | 005-132 | 128 | PDS name/owner | 
| CPYNAME | CHARACTER | 133-260 | 128 | copybook name/table name | 
| FLELAB | CHARACTER | 261-261 | 1 | flag file new | 
| TSNAME | CHARACTER | 262-285 | 24 | tablespace name | 
| DBNAME | CHARACTER | 286-309 | 24 | database name | 
| OBID | CHARACTER | 310-313 | 4 | OBID | 
| FILTXT | CHARACTER | 314-363 | 50 | text | 
| NUMREC | INTEGER | 364-372 | 9 | number of records | 
| RECLEN | INTEGER | 373-377 | 5 | length of records |