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select deptno,job,avg(sal) from emp group by cube (deptno,job)
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try
GROUP BY deptno,job WITH ROLLUP
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ÈçºÎʹÓà Oracle Round º¯數 (ËÄ捨ÎåÈë)
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SELECT ROUND( number, [ decimal_places ] ) from DUAL
參數:
number : Óû處ÀíÖ®數Öµ
decimal_places : ËÄ捨ÎåÈë , С數È¡幾λ ( 預設為 0 )
Sample :
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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