Geodatabases

Question 1

Geodatabase

Answer 1

database/file structure used to store/manage/query/manipulate data

Question 2

4 types of data can be stored in geodatabases

Answer 2

1. vector
2. raster
3. tabular
4. attachments

Question 3

3 advantages of using geodatabases

Answer 3

1. everything stored in one place
2. can create parameters for files to increase accuracy
3. takes up less space

Question 4

File geodatabase (how stored/what it is)

Answer 4

• stored in a file system folder
• can support multiple people working in/editing different files at the same time

Question 5

Enterprise geodatabase

Answer 5

• require a database management system like Oracle/SQL
• support unlimited people editing the same database at the same time

Question 6

Most basic level of a geodatabase

Answer 6

container for spatial/attribute data

Question 7

Mosaic dataset

Answer 7

Stores multiple images together in one dataset to be viewed as one seamless image

Question 8

Feature class storage method

Answer 8

primary storage method for spatial data in a geodatabase (points/lines/polygons)

Question 9

Feature class definition

Answer 9

collection of features that have the same geometry type, attribute columns, and spatial reference

Question 10

Feature dataset

Answer 10

a collection of feature classes that have the same spatial reference
can be any feature type (line, point, polygon)

Question 11

Geodatabase schema

Answer 11

Shows organizational structure of a geodatabase

Question 12

3 layers in a mosaic dataset

Answer 12

1. boundary (of whole mosaic)
2. footprint (of each image)
3. image (mosaic image)