- Append Queries in Power Query means combining two or more tables vertically, stacking rows together.
- It’s like a UNION operation in SQL.
- In my project, we appended monthly sales tables to create a single year-to-date dataset.
- Columns must match in number and data type for proper alignment.
- Extra or missing columns can be handled with null values automatically.
- It helps consolidate data from multiple sources or periods for analysis.
- Applied before loading, it creates one unified dataset for reporting.
- Reduces complexity in visuals by avoiding multiple table references.
- Supports incremental data loading by appending new batches regularly.
- So append queries simplify dataset consolidation and analysis.
What is append queries during transformation?
Updated on February 9, 2026
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