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Learn how Merge, Append, and Union differ in GIS, especially whether you are creating a new dataset, adding features to an existing one, or combining layers through their spatial relationships.
Learn how Dissolve combines vector features, removes boundaries between related geometries, and changes the relationship between geometry and attributes.
Understand the main GIS vector operations, from Clip and Intersect to Buffer, Dissolve, Simplify, and spatial construction, and learn which kind of operation fits your geographic question.