Is there a function in ORACLE PL/SQL to calculate the area of a polygon?

Question

A polygon in terms of oracle spatial data (SDO_GEOMETRY). The polygon is formed by geographic coordinates and can be irregular.

Answer 1

The below function return the area of the GEOMETRY also it works with any polygon including polygons with holes.

SELECT SDO_GEOM.SDO_AREA(<geometry_column_name>, <tolerance_value>) 
FROM   <table_name>;

Where TOLERANCE_VALUE is used to associate a level of precision with spatial data. Refer here for more in detail.