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SGN Function Details
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SGN Function Details
Syntax
SGN(numeric-expression)
The SGN function returns a value depending on the sign of its
argument:
■ If numeric-expression > 0, then SGN(numeric-expression) returns 1.
■ If numeric-expression = 0, then SGN(numeric-expression) returns 0.
■ If numeric-expression < 0, then SGN(numeric-expression) returns -1.