ST_NumGeometries
Applies to ❌ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
This function returns the number of interior rings of a polygon geometry. For example:
create.select(stNumGeometries(stGeomFromText("MULTIPOINT ((-1 -1), (1 -1), (1 1), (-1 1))"))).fetch();
The result being, for example
+------------------+ | ST_NumGeometries | +------------------+ | 4 | +------------------+
stNumGeometries(geometry)
Translates to the following dialect specific expressions:
-- AURORA_MYSQL, AURORA_POSTGRES, COCKROACHDB, MARIADB, MYSQL, POSTGRES, REDSHIFT, SNOWFLAKE st_numgeometries(geometry) -- ORACLE sdo_util.getnumelem(geometry) -- SQLSERVER geometry.STNumGeometries() -- ACCESS, ASE, BIGQUERY, DB2, DERBY, EXASOL, FIREBIRD, H2, HANA, HSQLDB, INFORMIX, MEMSQL, SQLDATAWAREHOUSE, SQLITE, -- SYBASE, TERADATA, TRINO, VERTICA, YUGABYTEDB /* UNSUPPORTED */
(These are currently generated with jOOQ 3.19, see #10141), or translate your own on our website
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