ON

Specifies that expressions must match character for character when comparing character data, or byte for byte when comparing binary data, to be equivalent.

Note:
To match the length of the longer expression, the shorter of the two expressions is padded to the right with spaces or zero (0) bytes. However, any trailing spaces or zero bytes in the expressions are disregarded in the comparison.

OFF

Specifies that expressions must match character for character when comparing character data, or byte for byte when comparing binary data, until the end of the expression on the right side is reached to be equivalent. (Default)

If both strings are the same length, SET EXACT has no effect.

SET EXACT is scoped to the current data session.