1.比如我需要某一列自增 就在下面写上该sql
select ROW_NUMBER()over(order by (select 1)) as tt,name,id
from s03_bak
只能做一个嵌套，按照你的，我建了几个表和查询，你看看，符合你要求不
建表
|
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create
table
a (id
int
,
name
varchar
(10));
b (
(10),
qty
);
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插入数据
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insert
into
a
values
(1,
'张三'
)
(2,monospace; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important; margin:0px!important; padding:0px!important; color:blue!important">'李四'
)
(3,monospace; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important; margin:0px!important; padding:0px!important; color:blue!important">'王五'
)
(4,monospace; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important; margin:0px!important; padding:0px!important; color:blue!important">'赵六'
)
(5,monospace; border:0px!important; bottom:auto!important; float:none!important; left:auto!important; line-height:1.1em!important; outline:0px!important; overflow:visible!important; position:static!important; right:auto!important; top:auto!important; vertical-align:baseline!important; width:auto!important; min-height:auto!important; margin:0px!important; padding:0px!important; color:blue!important">'孙七'
)
b
(
sql string" style="font-family:Monaco,100)
sql keyword" style="font-family:Monaco,200)
sql keyword" style="font-family:Monaco,500)
sql keyword" style="font-family:Monaco,100)
sql keyword" style="font-family:Monaco,200)
sql keyword" style="font-family:Monaco,500)
|
运行语句
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select
t.
name
sql plain" style="font-family:Monaco,t.qty,row_number() over (
order
by
t.qty)
from
(
a.
sql keyword" style="font-family:Monaco,
sum
(b.qty) qty
from
a
left
join
on
=b.
group
) t
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结果截图
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|
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