What does adding linkage to a display column accomplish?

What does adding linkage to a display column accomplish?

• A. It creates a template item.
• B. It adds maps from the base file to itself.
• C. It updates only the local master file.
• D. It adds maps from other master files to the one you want to display information from.

Answer: (D)

Linkage in a display column is about bringing in data from related master files by connecting that column to those other files. When you add linkage, you’re creating maps that point from the file you’re displaying to data in other master files, so the display column can show information from those external sources in one view. This is exactly what enables cross-file data to appear together without duplicating data in the local file. That’s why the correct choice describes adding maps from other master files to the one you want to display information from. The other options describe things that don’t involve pulling in or joining data from outside files: creating a template item is about scaffolding, not cross-file data; adding maps from the base file to itself would be self-referential and not bring in external information; and updating only the local master file doesn’t address linking to other files at all.

Linkage in a display column is about bringing in data from related master files by connecting that column to those other files. When you add linkage, you’re creating maps that point from the file you’re displaying to data in other master files, so the display column can show information from those external sources in one view. This is exactly what enables cross-file data to appear together without duplicating data in the local file.

That’s why the correct choice describes adding maps from other master files to the one you want to display information from. The other options describe things that don’t involve pulling in or joining data from outside files: creating a template item is about scaffolding, not cross-file data; adding maps from the base file to itself would be self-referential and not bring in external information; and updating only the local master file doesn’t address linking to other files at all.