1、把兩張**的資料抽取出來放到另外一張**中
（1）pt表
role_id int
pt int
（2）season_score表
role_id int
season_score int
（3）player表
role_id int
pt int
season_score int
count int
（4）把pt表和season_score表的資料移動到player表中,並且把player表的count欄位的值設定為1
（5）sql語句如下：
replace
into
`player` (
role_id,
`pt`,
`season_score`,
`count`
) select
tmp.t1,
coalesce (tmp.t2, 0),
coalesce (tmp.t3, 0),
1from((
select
p.role_id as t1,
p.pt as t2,
s.season_score as t3
from
pt as p
left
join season_score as s on p.role_id = s.role_id
)union
(select
s.role_id as t1,
p.pt as t2,
s.season_score as t3
from
season_score as s
left
join pt as p on p.role_id = s.role_id
)) tmp;
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