update (select iy.company_name company_name1, cc.company_name_jc company_name2
from income_year_item iy , city_company cc
where iy.company_code = cc.code
)
set company_name1 = company_name2;
2.只能单行子查询s
update CITY_PROJECT_SCALE_INFO c set
(c.value) = (
select d.value from CITY_PROJECT_SCALE_INFO @test d where d.project_id = '7d7fd580a06240b2a9137dc2bbe831e9'
and d.project_id = c.project_id and c.company_code = d.company_code
)
where exists (
select 1 from CITY_PROJECT_SCALE_INFO @test d where d.project_id = '7d7fd580a06240b2a9137dc2bbe831e9'
and d.project_id = c.project_id and c.company_code = d.company_code
)
3.使用merg inot 语句
--更新生产基础字段
merge into city_cfg_data_column_common cf1 using
city_cfg_data_column_common2 cf2 on
(cf1.resourceid = cf2.resourceid)
when matched then
update set cf1.template_type = cf2.template_type,
cf1.chinese_name = cf2.chinese_name,
cf1.column_name = cf2.column_name,
cf1.column_type = cf2.column_type,
cf1.column_size = cf2.column_size
when not matched then
insert (cf1.resourceid,cf1.template_type,cf1.chinese_name,cf1.column_name,cf1.column_type,cf1.column_size
,cf1.is_can_edit,cf1.is_unique,cf1.is_can_cover,cf1.show_order)
values (cf2.resourceid,cf2.template_type,cf2.chinese_name,cf2.column_name,cf2.column_type,cf2.column_size
,cf2.is_can_edit,cf2.is_unique,cf2.is_can_cover,cf2.show_order)
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