Headers can also be used as variable column labels. Here is an example of Inventory segmented part numbers:

Details on the print section:

• seg.code header at inv.no norepeat skip
  • seg.code  — the name of the template record in the segment table
  • header at inv.no — header will print starting at the beginning of the inv.no column (which is listed under the nam5 row).
  • norepeat — we want to  print the code one time for all the matching inventory items.
  • skip — insert a blank line when the seg.code changes.
• nam1 header at “seg1” shade repeat on code center
  • nam1 — the field name in the template record for the first segment (nvseg.nam1)
  • header at “seg1” — will print nam1 starting at the column aliased as “seg1” (which id defined below the nam5 row).
  • We’re using an alias here. Without the alias, the statement would read:
    nam1 header at inv.seg1 shade repeat on seg.code center
    The inv.seg1 in the middle forces us to re-state the seg table for the code field, (code is in the seg table, not the inv table).
  • shade — shade the cell containing nam1. Shade (bordershaded) is the same grey scale as the default column labels.
  • repeat on code — the header will print when the seg.code changes. We could also write this as:
    repeat on code on page (printing the column header at the top of the next page)
  • center — center the text of the segment name in the real estate of the “seg1” column.
• inv.no partno
  • the inventory record number and part number which will print for each row.
• seg1 nolabel as “seg1”
  • seg1 — the first segment piece of the inventory part number (nvinv.seg1)
  • nolabel — we don’t want a column label to print since we are providing the variable column label from the segment template.
  • as “seg1” —  this sets the alias. The alias is equivalent to (nvinv.seg1).

So, what does it look like?

The BOLT segment template has 5 segments. The SHIM template has only 4,so the fifth column header label is blank. The normal column headings for the 5 segment columns are blank (nolabel).

 

   Page 1 — header
   Page 2 — no header
   Page 3 — multiple headers
   Page 4 — headers as sub-column labels