The following query takes the input argument 20, which has a data type of BYTEINT and a binary representation of 00010100, and requests that 3 bits be returned starting at the third bit. The 3 bits returned are 101, which are placed into a right-justified zero-filled byte. The result from the query is a value of 5, or binary 00000101, with the result data type being VARBYTE(1).
SELECT SUBBITSTR(20,2,3);