1. Key Terms
Attribute join
Target table
Join table
Spatial join

2. Lect 10A Building Geodatabase
Create a new file geodatabase
Map x,y data
Convert shape files to geodatabase feature classes

3. Spatial Data Formats Coverage Shape file
Geodatabase: personal, file, enterprise (SDE)

4. Shape File
Multiple files, all with the same name but different file extensions
No intermediate data products, but has indices to speed data processing
Widely used to share spatial data files

5. Geodatabase
A geodatabase is a container used to hold a collection of datasets (GIS features, tables, raster images, and other objects)

6. Geodatabase
Storage model based on a series of simple yet essential relational database concepts and leverages the strengths of the underlying database management system (DBMS).
Simple tables and well-defined attribute types are used to store the schema, rule, base, and spatial attribute data for each geographic dataset.
Provides a formal model for storing and working with your data. Through this approach, structured query language (SQL)—a series of relational functions and operators—can be used to create, modify, and query tables and their data elements.

7. Geodatabase
A feature class is stored as a table, often referred to as the base or business table.
Each row in the table represents one feature.
The shape column stores the polygon geometry for each feature.
The contents of this table, including the shape when stored as a SQL spatial type, can be accessed through SQL.

8. Enterprise Geodatabase
Practically unlimited size and multiple simultaneous users
Use enterprise data management systems
Store spatial datasets in a number of DBMSs: IBM DB2, Microsoft SQL Server, Oracle, or Postgres

9. Personal Geodatabase Parallels enterprise geodatabase but on PC
Stores datasets in a Microsoft Access .mdb file
Limited to 2GB
Much overhead in space and extra structure
Tempting to apply one’s own Access skills, but needs ArcGIS Catalog utility for manipulation

10. File Geodatabase Esri’s replacement for shapefiles
Vector and raster map layers
Other objects (tables)
Stores one or more datasets in a folder of files with .gdb extension
Can be up to 1 TB in size
Can be used across platforms
Can be compressed and encrypted for read-only, secure use

11. X, Y Data Point data table with X and Y attributes
Increasingly popular to include X and Y with data
Commonly used for GPS data

12. Lecture 10B Geocoding Create and manage address locator
Match addresses

13. Lecture 10B Geocoding
Definition: the process of creating map features from addresses
Three components:
Data table (addresses)
Reference data
Address locator

14. Create Address Locator
ArcCatalog

15. Choose Address Locator Style
Skeleton of the address locator
Based on data tables and reference layer

16. Address Locator Styles
Reference dataset geometry
Reference dataset representation
Address search parameters
Example
Applications
US Address—Dual Ranges
Lines
Address range for both sides of street segment
All address elements in a single field
320 Madison St.
N2W1700 County Rd.
Union St.
Finding a house on a specific side of the street
US Address—Single House
Points or polygons
Each feature represents an address
71 Cherry Ln.
W1700 Rock Rd.
38-76 Carson Rd.
Finding parcels, buildings, or address points

17. Choose Reference Layer
Streets, ZIP Codes

18. ArcGIS Locator Parameters

19. Geocode in ArcMap Add tabular data and streets layer
Add address locator
Geocode addresses
View geocoding results
Interactively rematch addresses

20. Address Rematching Investigate unmatched addresses.
Generally requires expertise and knowledge of local streets
Compare a street name in the attributes of the streets table and the address table.