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decimal_places : ËÄ捨ÎåÈë , С數È¡幾λ ( 預設為 0 )
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select round(123.456) from dual; »Ø傳 123
select round(123.456, 0) from dual; »Ø傳 123
select round(123.456, 1) from dual; »Ø傳 123.5
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