Question

我需要创建一个存储过程，用于将生产数据库中某些表格中的数据移动到2010年之前的归档数据库（使用与生产相同的结构创建）。我使用的方法是将数据从生产复制到存档，并删除存档中存在的生产数据。这是代码：

--## INSERT data from Production DB to Archive DB

    --tableMaster
    INSERT INTO [DB_Archive].[dbo].[tableMaster]
    select * from [DB_Production].[dbo].[tableMaster]
    where QuoDate < '2010-01-01 00:00:00.000'

    --tableDetail
    INSERT INTO [DB_Archive].[dbo].[tableDetail]
    select * from [DB_Production].[dbo].[tableDetail] tblDet
    where exists (select tblMaster.QuoNo,tblMaster.AgentCode from [DB_Archive].[dbo].[tableMaster] tblMaster
                                                    where tblDet.QuoNo = tblMaster.QuoNo)

    --tableSubDetail1
    INSERT INTO [DB_Archive].[dbo].[tableSubDetail1]
    select * from [DB_Production].[dbo].[tableSubDetail1] tblsub1
    where exists (select tblMaster.QuoNo,tblMaster.AgentCode from [DB_Archive].[dbo].[tableMaster] tblMaster 
                                                    where tblsub1.QuoNo = tblMaster.QuoNo)

    --tableSubDetail2
    INSERT INTO [DB_Archive].[dbo].[tableSubDetail2]
    select * from [DB_Production].[dbo].[tableSubDetail2] tblsub2
    where exists (select tblMaster.QuoNo,tblMaster.AgentCode from [DB_Archive].[dbo].[tableMaster] tblMaster 
                                                    where tblsub2.QuoNo = tblMaster.QuoNo)


    --## DELETE data from Production DB

    --tableMaster
    DELETE tblM FROM [DB_Archive].[dbo].[tableMaster] tblM
    Where exists (select bmas.QuoNo from [DB_Archive].[dbo].[tableMaster] bmas 
                                        where tblM.QuoNo = bmas.QuoNo)

    --tableDetail
    DELETE tblD FROM [DB_Archive].[dbo].[tableDetail] tblD
    Where exists (select bmas.QuoNo from [DB_Archive].[dbo].[tableDetail] bmas 
                                        where tblM.QuoNo = bmas.QuoNo)

    --tableSubDetail1
    DELETE tblS1 FROM [DB_Archive].[dbo].[tableSubDetail1] tblS1
    Where exists (select bmas.QuoNo from [DB_Archive].[dbo].[tableSubDetail1] bmas 
                                        where tblM.QuoNo = bmas.QuoNo)

    --tableSubDetail2
    DELETE tblS2 FROM [DB_Archive].[dbo].[tableSubDetail2] tblS2
    Where exists (select bmas.QuoNo from [DB_Archive].[dbo].[tableSubDetail2] bmas 
                                        where tblM.QuoNo = bmas.QuoNo)

上面只有4个表，我有30个++表来使用相同的脚本。你能告诉我如何使这段代码变得简单和简短吗？谢谢

Answer 1

您可以在单个语句中组合INSERT和DELETE：

DELETE [DB_Production].[dbo].[tableDetail]
output deleted.col1, deleted.col2, etc into [DB_Archive].[dbo].[tableDetail]
where exists (select * from [DB_Archive].[dbo].[tableMaster] tblMaster where [DB_Production].[dbo].[tableDetail].QuoNo = tblMaster.QuoNo)

将数据清除到历史数据库（简单和短代码）

1 个答案: