臨時表更新mysql

Question

我正在將我的存儲過程從Sql Server遷移到MySql。

某處我正面臨着將更新查詢從MS sql server轉換爲Mysql臨時變量的問題。這裏是我的MS SQL Server查詢：

update sampleStoreTV set felony = c.fel,misdemeanor = c.mis,violation = c.vio 
from (select srcCL.id as 'storeId', 
case when SUM(case when srcCL.cl='FELONY' then 1 else 0 end)>0 then 1 else 0 end as 'fel', 
case when SUM(case when srcCL.cl='MISDEMEANOR' then 1 else 0 end)>0 then 1 else 0 end as 'mis', 
case when SUM(case when srcCL.cl='VIOLATION' then 1 else 0 end)>0 then 1 else 0 end as 'vio' 
from 
(select DM_Sample_Store.DM_Sample_Store_ID as 'id', 
Charge_Level.Mapped_Charge_Level as 'cl' 
from DM_Sample_Store 
left join screening_result on Screening_Result.Screening_Result_id = DM_Sample_Store.Screening_Result_id 
left join Crim_Case on Screening_Result.Screening_Result_id = Crim_Case.Screening_Result_id 
left join Crim_Charge on Crim_Case.Crim_case_id = Crim_Charge.Crim_case_id 
left join PDL_DataSource on DM_Sample_Store.DataSource_Id = PDL_DataSource.DataSource_Id 
left join DM_Sample_Search_Param on DM_Sample_Store.DM_Sample_Store_ID = DM_Sample_Search_Param.DM_Sample_Store_ID 
left join Charge_Level on Crim_Charge.Sanitized_Charge_Level_id = Charge_Level.Charge_Level_id 
where PDL_DataSource.DataSource_Id = dataSourceId 
and DM_Sample_Store.Active = 1 
and DM_Sample_Search_Param.Global_Search_Parameter_ID in (sosGspId, freqGspId, clGspId, dtGspId) 
and DM_Sample_Search_Param.Active = 1 
-- and Crim_Charge.AOR_Days is not null 
) srcCL 
group by id 
having SUM(case when cl='FELONY' then 1 else 0 end)>0 
or SUM(case when cl='MISDEMEANOR' then 1 else 0 end)>0 
or SUM(case when cl='VIOLATION' then 1 else 0 end)>0) c 
where sampleId = c.storeId 

Answer 1

我不知道什麼youre試圖做的，但你的查詢是完全錯誤的許多不同的原因。

您需要將您的sampleStoreTV加入其他表格。我想這可能是類似的東西：

update sampleStoreTV 
inner join (your query) as c on sampleStoreTV.sampleId = c.storeId 
set sampleStoreTV.felony = c.fel, 
sampleStoreTV.misdemeanor = c.mis, 
sampleStoreTV.violation = c.vio 

我希望它能幫助