It is also a service layer, because it is hosted online.ĩ. Like the population density layer, this too is a raster. The basemap updates to show imagery of the earth that was collected by satellites and aircraft. In the Catalog pane, on the Project tab, right-click Databases and choose Add Database. You can add the gdb data the same way you added the shapefile (with the Add Data button), but I’m going to show you another way.Ĥ. Inside the geodatabase are a lot of files with mysterious names. Inside is a file geodatabase: HongKong.gdb. Data stored in a geodatabase will take up less space and perform faster than shapefiles.ġ. If you’re creating or saving data, I recommend using this format instead of shapefiles.
GeodatabaseĮsri has since created a new format for storing data-the geodatabase. For example, shapefiles cannot support time, null values, or the full range of Unicode characters. But this data type is older, so it has a number of limitations. It is easy to save a shapefile and email it to a colleague, so you will come across many shapefiles if you’re searching for data on the internet. The name fclass may not seem like the most intuitive one, but shapefiles cannot have field names longer than 10 characters, so you’ll often run into cryptic headings like this. The column fclass looks like the most useful one it contains the transportation feature types, including tram stops, bus stops, and railway stations. A table appears showing the attributes for the points.
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