The SIGN numeric function tells you whether a given number is positive, negative, or zero.
The SIGN function returns -1, 0, or +1 when the NumericExpression value is negative, zero, or positive respectively. The parameter can be any built-in numeric data type and the result is of the same type as the parameter. If the parameter is NULL, the result is NULL
Related concepts
ESQL
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Developing ESQL
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Syntax preference
ESQL numeric functions
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