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create table test_table
(
id int identity(1,1) primary key not null,
cid int not null,
userName varchar(50) null,
userPwd varchar(50) null,
createTime datetime null
)
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declare @count int
set @count=1
while @count<=1000000
begin
insert into test_table(cid,userName,userPwd,createTime) values(2,'admin','admin888',getdate())
set @count=@count+1
end
-------------------------------------------------------------------------------------------------------
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/*row_number() ²éѯ·½·¨Ò»*/
declare @tdiff datetime
set @tdiff=getdate()
select top 20 * from(select row_number() over(order by createtime desc,id asc) as rownumber,* from test_table ) as tb where rownumber>120000
select datediff(ms,@tdiff,getdate()) as 'ºÄʱ(ºÁÃë)'
/*row_number() ²éѯ·½·¨¶þ*/
declare @tdiff datetime
set @tdiff=getdate()
select * from(select row_number() over(order by createtime desc,id asc) as rownumber,* from test_table ) as tb where rownumber between 120000 and 120200
select datediff(ms,@tdiff,getdate()) as 'ºÄʱ(ºÁÃë)'
----------------------------------------------------------------------------------------------------------
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create table t_emp_log212
(
who varchar2(10) not null,
action varchar2(10) not null,
actime date
);
create or replace trigger tri_emp_insert
before insert
on t_emp
begin
insert into t_emp_log(who,action,actime)values(user,'insert',sysdate);
end ......