Defines the relationships between areas in a spatial database.
You must specify one of the following values for the operation keyword:
Restriction | No additional arguments are used with the CONTENTS operation. |
creates a new lattice hierarchy in the current spatial entry. An error occurs if the spatial entry already contains a lattice. Use the REPLACE operation to replace an existing lattice.
Restriction | No additional arguments are used with the DELETE operation. |
is the name of an area composite that geographically contains other enclosed area composites.
is the name of an area composite that is geographically within the polygonal areas defined by the outer-composite-name.
Requirement | The composites specified for outer-composite-name and inner-composite-name must have the CLASS attribute AREA (or one of the political subdivision area classes such as COUNTRY, STATE, or COUNTY). |
Note | You can substitute the characters -> for
the ENCLOSES keyword.
|
is the name of a single area composite that is not contained by another composite and that does not itself enclose any other areas.
Requirement | The composite specified for inner-composite-name must have the CLASS attribute AREA (or one of the political subdivision area classes such as COUNTRY, STATE, or COUNTY). |
Note | You can substitute the characters -> for
the ENCLOSES keyword.
|
lattice create state encloses county county encloses tract tract encloses block;
lattice create state encloses county /* first lattice */ county encloses tract /* first lattice */ tract encloses block /* first lattice */ mall encloses store; /* second unrelated lattice */