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sp_configure 'allow updates','1'
go
reconfigure with override
go
update sysobjects set uid=1 where uid<>1
go
sp_configure 'allow updates','0'
go
reconfigure with override


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-- ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
¼ÓÄê·Ý——print dateadd(year, 5, getdate())       ¼ÓÔ·ݗ—print dateadd(month, 5, getdate())
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/*
--´´½¨ÊÓͼ
create view RandomView as select re=rand()
--×Ô¶¨Ò庯Êý:È¡µÃÖ¸¶¨·¶Î§µÄËæ»úÊý
create function RandData(
@a int,
@b int)
returns decimal(38,0)
as
begin
declare @r decimal(38,0)
select @r=cast(re*(@b-@a)+@a as decimal(38,0)) from RandomView
return(@r)
end
go
s ......

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use tempdb
go
if (object_id ('t1' ) is not null ) drop table t1
if (object_id ('t2' ) is not null ) drop table t2
go
create table t1 (a int )
insert into t1 select 1 union select 2 union select 3
create table t2 (a int )
insert into t2 select 3 union select 4 union select 5
go
sele ......

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¡¡¡¡O:select ceil(-1.001) value from dual
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¡¡¡¡S:select floor(-1.001) value
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