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±íTest1
a1 a2 a3
11 12 13
10 8 9
5 20 10
ÏÔʾ³É a1 a2
a1>a2?a1,a2(a1>a2½á¹ûΪa1,·ñÔòΪa2) a2>a3?:a2,a3(ͬÀí)
±í Test2
time result
2009-11-1 ʤ
2009-11-1 ¸º
2009-11-1 ʤ
ÏÔʾ³É ʱ¼ä ʤ ¸º
2009-11-1 1 1
2009-11-2 1 0
SQL code:
--1
select case when a1>a2 then a1 else a2 end
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select cast(convert(numeric(18,2),1275674000000/100000000)as real)
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erkv|||rltdk
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SQL code: ......