Name
ST_NumBands — Returns the number of bands in the raster object.
Synopsis
integer
ST_NumBands
(
raster
rast
)
;
Description
Returns the number of bands in the raster object.
Examples
SELECT rid, ST_NumBands(rast) As numbands
FROM dummy_rast;
rid | numbands
----+----------
1 | 0
2 | 3