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SIGN

ANSI DB2 SQL/DS XDB
      X

Returns the sign of the parameter expr. The format appears below:

SIGN(expr)

A value of one is returned if expr is positive, and a value of zero is returned if expr is zero, and -1 is returned if expr is negative. For example:

SIGN(-234.4) = -1
SIGN(234) = 1
SIGN(0) = 0
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