Question

我在下面有这个查询，根据特定条件解析列中的名称。我想扩充此查询以包含一个新行，该行将包含mk_kw表中两列的串联。

insert into mk_kw
with a(v) as (
select "Campaign"
from adwords_raw
), pre as (
select split_part(v, '{', 1) a,split_part(v, '{', 2) b
from a)
select
split_part(a, '-', 1) ca,
split_part(a, '-', 2) cb,
split_part(split_part(a, '-', 3), '|', 1) cc,
split_part(split_part(a, '-', 3),
split_part(split_part(a, '-', 3), '|', 1) || '|', 2) cd,
'{' || b ce
from pre;

当前输入表如下所示，“Campaign”是当前操作列

Campaign                           |Adgroup |
-----------------------------------+--------+
ES-SRC-IOT|Connectivity|SIM|USA|{e}|Watches |

目前的输出如下所示

 ca | cb  |    cc     |             cd             |  ce
----+-----+-----------+----------------------------+------
 ES | SRC | IOT       |  Connectivity | SIM | USA  | {e}

我想在此公式中添加一个串联，将其创建为输出

 ca|cb |cc |cd                  |ce |Campaign&AdGroup
---+---+---+--------------------+---+------------------------------
 ES|SRC|IOT|Connectivity|SIM|USA|{e}|ES-SRC-IOT|Connectivity|SIM|USA 
   |   |   |                    |   |{e}Watches

是否可以添加此连接，还是我必须完全废弃此查询？

干杯。

Answer 1

试试这个

insert into mk_kw
with a(v,a) as (
select "Campaign","Adgroup"
from adwords_raw
), pre as (
select split_part(v, '{', 1) a,split_part(v, '{', 2) b,v||a as Campaign&AdGroup
from a)
select
split_part(a, '-', 1) ca,
split_part(a, '-', 2) cb,
split_part(split_part(a, '-', 3), '|', 1) cc,
split_part(split_part(a, '-', 3),
split_part(split_part(a, '-', 3), '|', 1) || '|', 2) cd,
'{' || b ce,
Campaign&AdGroup
from pre;

Answer 2

您不需要使用concat，只需重用现有列：

with a(v,g) as (
select "Campaign","Adgroup"
from adwords_raw
), pre as (
select split_part(v, '{', 1) a,split_part(v, '{', 2) b,v||g "Campaign&AdGroup"
from a
)
select
split_part(a, '-', 1) ca,
split_part(a, '-', 2) cb,
split_part(split_part(a, '-', 3), '|', 1) cc,
split_part(split_part(a, '-', 3),
split_part(split_part(a, '-', 3), '|', 1) || '|', 2) cd,
'{' || b ce,
"Campaign&AdGroup"
from pre;

在新查询中连接两个现有列

2 个答案: