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2025-02-24 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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Function syntax: sign (n)
Function description: the symbol that determines the value n. If n > 0, the return value is 1; if n
< 0，返回 -1；若 n = 0，则返回0。 函数示例： 一、select sign(100) as "正数100" , sign(-100) as "负数-100" , sign(0) as "零0" from dual;
II. Axiom 10 and Bobby 20
Select sign (aMub) from dual; result:-1
Select sign (bmura) from dual; result: 1
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