下面代码报空指针
with `__all_dim__` as (
select
*
from (
select
from_unixtime(unix_timestamp(`__bts__`) -1,‘yyyy-MM-dd HH:mm:ss‘) as `__bts__`
from (
select
concat_ws(‘ ‘, `d`.`date`, `t`.`time_of_day`) as `__bts__`
from `ecmp`.`dim_date` as `d`
left join `ecmp`.`dim_time_of_day` as `t` on 1 = 1
where
`d`.`date` >= ‘2020-01-12‘
and `d`.`date` <= ‘2020-01-13‘
) as `__bts___tp1`
where
`__bts__` > ‘2020-01-12 00:00:00‘
and `__bts__` <= ‘2020-01-13 00:00:00‘
and second(`__bts__`) = 0
and minute(`__bts__`) = 0
and hour(`__bts__`) = 0
and pmod(day(`__bts__`), 1) = 0
) as `__time_model__`
cross join (
select
`dd_59282`.`tenant_pk` as `tenant_pk`,
`dd_59282`.`tenant_id` as `tenant_id`,
`dd_59282`.`tenant_name` as `tenant_name`
from `ecmp`.`dim_tenant` as `dd_59282`
) as `tenant_pk`
cross join (
select
‘Fatal‘ as incident_level from system.dual
union all
select
‘Error‘ as incident_level from system.dual
union all
select
‘Warning‘ as incident_level from system.dual
union all
select
‘Info‘ as incident_level from system.dual
) as `incident_level`
)
,`t` as (
select
`tenant_pk`,
`incident_accept_violation_count`,
`incident_level`,
rank() over( partition by `incident_level` order by `incident_accept_violation_count` DESC) as `incident_accept_violation_count_rank`,
rank() over( partition by `incident_level` order by `incident_accept_violation_count` ASC) as `__inverse_rank__`
from (
select
`__all_dim__`.*,-- 经排查发现表名加单引号再.*就是会报空指针，去掉表名的单引号后该问题解决
CAST(round(nvl(`incident_accept_violation_count`, 0), 0) as INT) as `incident_accept_violation_count`
from `__all_dim__`
left join (
select
`incident_level`,
`tenant_pk`,
count(*) as `incident_accept_violation_count`
from `ecmp`.dwd_incident_accept
where
incident_accept_violation_flag = ‘违规‘
and `incident_accept_time` >= ‘2020-01-12 00:00:00‘
AND `incident_accept_time` <= ‘2020-01-12 23:59:59‘
group by
`incident_level`,
`tenant_pk`
) as `t1` on 1 = 1
and `__all_dim__`.`tenant_pk` = `t1`.`tenant_pk`
and `__all_dim__`.`incident_level` = `t1`.`incident_level`
) as `t0`
)
select
`__all_dim__`.`__bts__` as `__bts__`,
CAST(SYSDATE as STRING) as `__cts__`,
CAST(dround(nvl(`incident_accept_violation_count`, 0), 0) as INT) as `incident_accept_violation_count`,
CAST(dround(`incident_accept_violation_count_rank`, 0) as INT) as `incident_accept_violation_count_rank`,
CAST(dround(`incident_accept_violation_count_win_rate`, 1) as DOUBLE) as `incident_accept_violation_count_win_rate`,
`__all_dim__`.`incident_level` as `incident_level`,
`__all_dim__`.`tenant_id` as `tenant_id`,
`__all_dim__`.`tenant_name` as `tenant_name`,
`__all_dim__`.`tenant_pk` as `tenant_pk`
from `__all_dim__`
left join (
select
‘2020-01-12 23:59:59‘ as `__bts__`,
`incident_accept_violation_count`,
`incident_accept_violation_count_rank`,
`incident_accept_violation_count_win_rate`,
CAST(coalesce(`tp1`.`incident_level`) as STRING) as `incident_level`,
CAST(coalesce(`tp1`.`tenant_pk`) as STRING) as `tenant_pk`
from (
select
`t`.`tenant_pk`,
`t`.`incident_level`,
`t`.`incident_accept_violation_count`,
`t`.`incident_accept_violation_count_rank`,
if(`c`.ct = 1,null,(`__inverse_rank__` -1) /(`c`.ct -1) * 100) as `incident_accept_violation_count_win_rate`
from `t`
left join (
select
`incident_level`,
count(*) as `ct`
from `t`
group by
`incident_level`
) as `c` on 1 = 1
and `t`.`incident_level` = `c`.`incident_level`
) as `tp1`
) as `__dws__` on `__all_dim__`.`__bts__` = `__dws__`.`__bts__`
and `__all_dim__`.`tenant_pk` = `__dws__`.`tenant_pk`
and `__all_dim__`.`incident_level` = `__dws__`.`incident_level`;
然后修改后直接SELECT * FROM t;是没有问题的，但是用先有的select报错
[Code: 10009, SQL State: 42000] COMPILE FAILED: Semantic error: [Error 10009] Line 54:8 Invalid table alias. Error encountered near token ‘all_dim‘
with alldim as (
select
*
from (
select
from_unixtime(unix_timestamp(`__bts__`) -1,‘yyyy-MM-dd HH:mm:ss‘) as `__bts__`
from (
select
concat_ws(‘ ‘, `d`.`date`, t.`time_of_day`) as `__bts__`
from `ecmp`.`dim_date` as `d`
left join `ecmp`.`dim_time_of_day` as t on 1 = 1
where
`d`.`date` >= ‘2020-01-12‘
and `d`.`date` <= ‘2020-01-13‘
) as `__bts___tp1`
where
`__bts__` > ‘2020-01-12 00:00:00‘
and `__bts__` <= ‘2020-01-13 00:00:00‘
and second(`__bts__`) = 0
and minute(`__bts__`) = 0
and hour(`__bts__`) = 0
and pmod(day(`__bts__`), 1) = 0
) as `__time_model__`
cross join (
select
`dd_59282`.`tenant_pk` as `tenant_pk`,
`dd_59282`.`tenant_id` as `tenant_id`,
`dd_59282`.`tenant_name` as `tenant_name`
from `ecmp`.`dim_tenant` as `dd_59282`
) as `tenant_pk`
cross join (
select
‘Fatal‘ as incident_level from system.dual
union all
select
‘Error‘ as incident_level from system.dual
union all
select
‘Warning‘ as incident_level from system.dual
union all
select
‘Info‘ as incident_level from system.dual
) as `incident_level`
)
, t as (
select
`tenant_pk`,
`incident_accept_violation_count`,
`incident_level`,
rank() over( partition by `incident_level` order by `incident_accept_violation_count` DESC) as `incident_accept_violation_count_rank`,
rank() over( partition by `incident_level` order by `incident_accept_violation_count` ASC) as `__inverse_rank__`
from (
select
--alldim.*,
alldim.`tenant_pk`,--去掉.*,改用需要几列查询几列的方式
alldim.`incident_level`,
CAST(round(nvl(`incident_accept_violation_count`, 0), 0) as INT) as `incident_accept_violation_count`
from alldim
left join (
select
`incident_level`,
`tenant_pk`,
count(*) as `incident_accept_violation_count`
from `ecmp`.dwd_incident_accept
where
incident_accept_violation_flag = ‘违规‘
and `incident_accept_time` >= ‘2020-01-12 00:00:00‘
AND `incident_accept_time` <= ‘2020-01-12 23:59:59‘
group by
`incident_level`,
`tenant_pk`
) as `t1` on 1 = 1
and alldim.`tenant_pk` = `t1`.`tenant_pk`
and alldim.`incident_level` = `t1`.`incident_level`
) as `t0`)
select
alldim.`__bts__` as `__bts__`,
CAST(SYSDATE as STRING) as `__cts__`,
CAST(round(nvl(`incident_accept_violation_count`, 0), 0) as INT) as `incident_accept_violation_count`,--dround改成round，手写错误
CAST(round(`incident_accept_violation_count_rank`, 0) as INT) as `incident_accept_violation_count_rank`,
CAST(round(`incident_accept_violation_count_win_rate`, 1) as DOUBLE) as `incident_accept_violation_count_win_rate`,
alldim.`incident_level` as `incident_level`,
alldim.`tenant_id` as `tenant_id`,
alldim.`tenant_name` as `tenant_name`,
alldim.`tenant_pk` as `tenant_pk`
from alldim
left join (
select
‘2020-01-12 23:59:59‘ as `__bts__`,
`incident_accept_violation_count`,
`incident_accept_violation_count_rank`,
`incident_accept_violation_count_win_rate`,
CAST(coalesce(`tp1`.`incident_level`) as STRING) as `incident_level`,
CAST(coalesce(`tp1`.`tenant_pk`) as STRING) as `tenant_pk`
from (
select
t.`tenant_pk`,
t.`incident_level`,
t.`incident_accept_violation_count`,
t.`incident_accept_violation_count_rank`,
if(`c`.ct = 1,null,(`__inverse_rank__` -1) /(`c`.ct -1) * 100) as `incident_accept_violation_count_win_rate`
from t
left join (
select
`incident_level`,
count(*) as `ct`
from t
group by
`incident_level`
) as `c` on 1 = 1
and t.`incident_level` = `c`.`incident_level`
) as `tp1`
)
as `__dws__` on alldim.`__bts__` = `__dws__`.`__bts__`
and alldim.`tenant_pk` = `__dws__`.`tenant_pk`
and alldim.`incident_level` = `__dws__`.`incident_level`;
原文地址：https://www.cnblogs.com/qfdy123/p/12200731.html
时间： 2024-08-29 05:09:22