Attribute table
The attribute table docks under the map and shows the values of the layer selected in the Layers panel. It is the last entry of the right rail, and a layer’s Open attribute table action opens the same thing.
Drag its top edge to give it more room, collapse it to a single bar, or close it.
Reading the table
Section titled “Reading the table”- Sort by clicking a column header, click again to reverse.
- Resize a column by dragging its edge, and rename a field by double clicking its header.
- Search attributes filters the rows on any value, as you type.
- Fields shows or hides columns, so a layer with forty attributes can be read through the six that matter.
Selecting a row selects the feature on the map, and selecting a feature on the map scrolls the table to its row. Clear selected feature releases the selection.
Editing values
Section titled “Editing values”Edit turns the cells into inputs. Change what you need, then Save to commit or cancel to discard. Geometry is edited in the Edit panel instead.
Two more actions change the schema rather than the values:
- Add field creates a new attribute, with a type and an optional default.
- Calculate fills a field from an expression over the other fields, for
example
pop / area,upper(name), or a conditional. It can run over the whole layer or over the selected feature only.
Exploring the data
Section titled “Exploring the data”Three tools read the table without changing it.
- Explore summarizes every column at once: its type, how many rows are populated, and what the values look like. It is the fastest way to understand a dataset you just received.
- Statistics summarizes one field. A numeric field gives count, nulls, minimum, maximum, mean, median, standard deviation, sum and the number of distinct values. A text field gives count, nulls, distinct values and the most frequent ones.
- Charts plots a field, to see a distribution before deciding how to classify it in Style.
Dashboard goes one step further and builds chart widgets from these fields, in a panel of its own.
Exporting
Section titled “Exporting”Export downloads the layer in the format you pick: GeoJSON, GeoParquet, GeoPackage, zipped Shapefile, or CSV for the attributes alone. Export needs a layer whose features ALIGN holds, so a remote tile service offers nothing to export.
A table for you, a table for your audience
Section titled “A table for you, a table for your audience”This table is a builder surface. To put a table on a published map, turn on the Table widget, which is read only and exposes the layers and columns you pick.