Thread: SELECTing part of a matrix

I've got a 3D matrix stored in a table. I'd like to pull back just 2
of the dimensions (specifying a constant value for the 3rd dimension).

e.g. 
table1
======
matrix1[5][10][20]

I've like to get matrix[1][all][all] and have it pulled back as a 2D
matrix (new_matrix1[all][all]).

Any way to do this?

-Tony