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我有一個需求,我需要插入記錄具有不同的哈希值爲特定的EmpID。以下是分段和主記錄的一些示例值。分段程序每週都會獲取值,並需要根據ID和散列值將值插入主程序中,並且在處理所有記錄時,表將被截斷。SQL服務器查詢獲取數據
Week 1 in staging: EMpd ID Hash Value
1000 1; 2000 2
2 records gets inserted in master
Week2 in staging: EMPID hashvalues
1000 -3
2000 2
3000 5
Master should have 1000 1;1000 -3; 2000 2; 3000 5
Week 3 in staging: EMPID hashvalues
1000 -5
2000 -9
3000 5
Master should have 1000 1;1000 -3; 1000 -5;2000 2; 2000 -9;3000 5
I have tried doing
insert into EMP_MASTER (EMPID,EMPNAME,hashValue)
select mas.*,stg.hashvalue FROM [EMP_master] mas (nolock)
INNER JOIN [EMP_staging] stg (nolock) ON mas.EMPID = stg.EMPID
WHERE mas.hashvalue != stg.hashvalue and not exists
(select 1 from [EMP_Master](nolock)
where EMPID=stg.EMPID and hashValue=stg.hashvalue) order by EMPID;
這給出1000的重複值。任何人都可以幫助我嗎? 謝謝 MR