Comments on: How to solve the Find all 3 digit numbers have the digital sum of nine Puzzle in SQL

By: Amalendu Pramanik

Amalendu Pramanik — Mon, 19 Dec 2011 14:07:00 +0000

With
D As(
Select 99+RowNum N From Dual Connect By Level<=(999-100)+1
)
Select *
From D
Where N>=100 And N<=999
And SubStr(N,1,1)+SubStr(N,2,1)+SubStr(N,3,1)=9

By: Amalendu Pramanik

Amalendu Pramanik — Mon, 19 Dec 2011 13:49:08 +0000

With
D As(
Select 99+RowNum N From Dual Connect By Level=100 And N<=999
And SubStr(N,1,1)+SubStr(N,2,1)+SubStr(N,3,1)=9

By: Amalendu Pramanik

Amalendu Pramanik — Mon, 19 Dec 2011 13:47:57 +0000


With
D As(
	Select 99+RowNum N From Dual Connect By Level=100 And N<=999
And SubStr(N,1,1)+SubStr(N,2,1)+SubStr(N,3,1)=9

By: Amalendu Pramanik

Amalendu Pramanik — Mon, 19 Dec 2011 13:43:50 +0000

With
D As(
	Select 99+RowNum N From Dual Connect By Level=100 And N<=999
And SubStr(N,1,1)+SubStr(N,2,1)+SubStr(N,3,1)=9;

By: cszxheap

cszxheap — Thu, 23 Dec 2010 02:47:00 +0000

–the following is my try :)

WITH DATA AS (
SELECT LTRIM(sys_connect_by_path(num,’+'),’+') str_num,REPLACE(sys_connect_by_path(num,’.'),’.') str_out
FROM (SELECT LEVEL-1 num
FROM dual
CONNECT BY LEVEL <= 10)
WHERE LEVEL = 3
CONNECT BY LEVEL <= 3
)
SELECT s.str_out, decode(ROWNUM,1,COUNT(*) OVER(),NULL) cnt FROM DATA s
WHERE dbms_aw.eval_number(s.str_num) = 9;