Oracle Spatial User's Guide and Reference - InfoLab

SDO_SAM.TILED_AGGREGATES
Format
Description
Parameters
SDO_SAM.TILED_AGGREGATES(
theme_name IN VARCHAR2,
theme_colname IN VARCHAR2,
aggr_type_string IN VARCHAR2,
aggr_col_string IN VARCHAR2,
tiling_level IN NUMBER,
tiling_domain IN SDO_DIM_ARRAY DEFAULT NULL
) RETURN SDO_REGAGGRSET;
SDO_SAM.TILED_AGGREGATES
Tiles aggregates for a domain. For each tile, computes the intersecting geometries
from the theme table; the values in the aggr_col_string column are weighted
proportionally to the area of the intersection, and aggregated according to aggr_
col_string.
theme_name
Table containing theme information (for example, demographic information).
theme_colname
Name of the column in the theme_name table that contains geometry objects.
aggr_type_string
Any Oracle SQL aggregate function that accepts one or more numeric values and
computes a numeric value, such as SUM, MIN, MAX, or AVG.
aggr_col_string
Name of a column in the theme_name table on which to compute aggregate values.
An example might be a POPULATION column.
Spatial Analysis and Mining Subprograms 21-21