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Clean and combine data (silver)

What you'll accomplish: Create a silver dataset — a curated version of one or more bronze tables.

Before you start​

  • At least one bronze table in your catalog

When you need silver​

  • Join two bronze tables (for example customers + orders)
  • Drop ID columns or rename fields before modeling
  • Filter rows with conditions

If a single bronze file is already clean, you can skip silver and publish gold directly.

Steps​

Simple promote (one bronze table)​

  1. Open a bronze table in Data.
  2. Choose Promote to silver (or equivalent action in the UI).
  3. Optionally drop or rename columns.
  4. Save with a clear silver name.

Build with a recipe (joins)​

  1. From Data, start Build silver.
  2. Add bronze sources and define join keys.
  3. Use Preview to check rows (limited sample).
  4. Save the silver dataset.

UI paths​

ActionWhere
Simple promoteBronze detail → Promote to silver
Join recipeAdd data → Create silver dataset (or Build silver from catalog actions)

Next steps​

Common questions​

Silver vs gold?
Silver is internal curation. Gold is validated for ML/Forecast (row counts, target, time series).

Can I skip silver?
Yes — one clean bronze CSV can go straight to gold publish.