CREATE FUNCTION dbo.fn_conversionzero_mj ( @decNum DECIMAL(18, 3))
RETURNS VARCHAR(200) --返回返回值的数据类型
AS
BEGIN
RETURN IIF(@decNum = 0 OR @decNum IS NULL
, '/'
, CONVERT(NVARCHAR(30), @decNum)) ;
END ;
判断是否null或者0返回保留3位小数函数
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Origin blog.csdn.net/q1923408717/article/details/119112318
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