Database Reference
In-Depth Information
get a higher accuracy for each feature position. However, sometimes, you will
need to add features on top of each other, making them overlap on purpose, espe-
cially if you have Z values. Too small a tolerance value might make it difficult to
snap these features into a single location and might cause problems with shared
boundaries.
9. As you can see, this value needs to be carefully planned, but for now, leave the
XY Tolerance
value to its default value, which is
0.001
meters, and click on
Next
.
Note
The
XY Tolerance
value is the minimum distance after which two features will
snap together.
In the next form, we select the configuration keyword; choose the
Default
configuration
keyword and click on
Next
.
Note
The configuration keyword is a table space in which feature classes and tables are stored.
Each configuration has certain properties, such as the geometry type and file size, which
are shared by all objects in that keyword.
Finally, we add the fields for our feature class. Note that two fields are already added for
you. The first field is
OBJECTID
, which is also the primary key; a sequence number that
represents each feature in the feature class uniquely.
Note
The primary key is a column by which a record is uniquely identified in a table or a data-
set.
The second field is
SHAPE
, which if you remember, we have added by specifying the
geometry type. So, we need to add three more fields:
NAME
,
WEBSITE
, and
RATING
;
click on an empty row in the
Field Name
column and add the following fields:
