Arcmap attribute table
The Make Query Table tool, for example, allows you to apply a SQL expression to one or more tables. You can perform queries on these database or geodatabase tables to create new tables. In addition, databases and geodatabases provide capabilities to extend the functionality of tables, such as maintaining data integrity and managing transactions. For example, database or geodatabase tables can store BLOB or raster field types. Tables in a database or geodatabase can contain some types of information that file-based tables do not support.
![arcmap attribute table arcmap attribute table](https://i.stack.imgur.com/IeqaS.png)
Many other sorts of tables, including those generated in other programs, such as Microsoft Excel, either accessed directly in ArcGIS or through the OLE DB functionality.Text files, such as those created in a text editor and delimited by commas or tabs.dBASE tables, the format used with shapefiles.Some examples of file-based sources of tabular information include the following: In addition, if you have spatial data, you probably already have tabular attributes that describe those geographic features.įile-based tables are stored in folders on disk. Tabular information could be stored as tables in folders or databases, text files, queries on databases, and so on. There are lots of sources of tabular data, and ArcGIS can take advantage of many formats. Learn more about choosing between joins, relates, and relationship classes.Learn more about joining and relating tables.For example, you could associate a table of parcel ownership information with the parcels layer, since they share a parcel ID field. You can make these associations in several ways, including by joining or relating tables temporarily in your map or by creating relationship classes in your geodatabase that maintain more permanent associations. Some fields, such as the unique identifier number (ObjectID) and Shape, are automatically added, populated, and maintained by ArcGIS.ĪrcGIS allows you to associate records in one table with records in another table through a common field, known as a key.
![arcmap attribute table arcmap attribute table](https://desktop.arcgis.com/en/arcmap/10.3/manage-data/tables/GUID-5A309AD2-B84E-4ECF-A475-7E4B492660EC-web.png)
![arcmap attribute table arcmap attribute table](https://desktop.arcgis.com/en/arcmap/10.3/manage-data/tables/GUID-FC845874-F5D5-456D-BF0F-BDE1B959B7E5-web.png)
These include the Shape field for point, line, and polygon feature classes and the BLOB field for annotation feature classes. Each field can store a specific type of data, such as a number, date, or piece of text.įeature classes are really just tables with special fields that contain information about the geometry of the features. In ArcGIS, rows are known as records and columns are fields. In the simplest terms, tables are made up of rows and columns, and all rows have the same columns. Tabular information is the basis of geographic features, allowing you to visualize, query, and analyze your data. Tasks you can perform with tables and attribute information.