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本帖最后由 peter1166 于 2014-9-18 21:30 编辑
自己都发现有漏算,下面的
手工算的
SELECT
9*POWER(8,9) +
8*POWER(8,8)*9 + 8*7*POWER(8,6)*8 + 8*6*POWER(8,5)*7 + 8*5*POWER(8,4)*6 + 8*4*POWER(8,3)*5 + 8*3*POWER(8,2)*4 + 8*2*POWER(8,1)*3 + 8*1*POWER(8,0)*2 +
7*POWER(8,7)*8 + 7*7*POWER(8,5)*7 + 7*6*POWER(8,4)*6 + 7*5*POWER(8,3)*5 + 7*4*POWER(8,2)*4 + 7*3*POWER(8,1)*3 + 7*2*POWER(8,0)*2 +
6*POWER(8,6)*7 + 6*7*POWER(8,4)*6 + 6*6*POWER(8,3)*5 + 6*5*POWER(8,2)*4 + 6*4*POWER(8,1)*3 + 6*3*POWER(8,0)*2 +
5*POWER(8,5)*6 + 5*7*POWER(8,3)*5 + 5*6*POWER(8,2)*4 + 5*5*POWER(8,1)*3 + 5*4*POWER(8,0)*2 +
4*POWER(8,4)*5 + 4*7*POWER(8,2)*4 + 4*6*POWER(8,1)*3 + 4*5*POWER(8,0)*2 +
3*POWER(8,3)*4 + 3*7*POWER(8,1)*3 + 3*6*POWER(8,0)*2 +
2*POWER(8,2)*3 + 2*7*POWER(8,0)*2 +
1*POWER(8,1)*2
FROM DUAL ;
2688571064
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