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A binary literal is a sequence of hexadecimal characters consisting of digits 0-9 and uppercase and lowercase letters A-F. When you enter binary data as literals, you must precede the data by 0x (a zero, followed by an x), and there should be an even number of digits to the right of this prefix. For example, the hexadecimal equivalent of 39 is 0027, and is expressed as 0x0027.
A binary literal is sometimes referred to as a binary constant. In SQL Anywhere, the preferred term is binary literal.