我想将文件中的数据插入到这个模型的表 Division 中,这是非常简化的:
I would like to insert data from a file into the table Division of this model which is very much simplified:
create table Statements (
Id INT IDENTITY NOT NULL
primary key (Id)
)
create table Item (
StatementFk INT not null,
ItemNameFk INT not null,
primary key (StatementFk)
)
create table ItemNames (
Id INT not null,
Name NVARCHAR(255) null unique,
primary key (Id)
)
create table Division (
ItemFk INT not null,
primary key (ItemFk)
)
alter table Item
add constraint FKBCDC2F95A77158D3
foreign key (StatementFk)
references Statements
alter table Item
add constraint FKBCDC2F957105B2A7
foreign key (ItemNameFk)
references ItemNames
alter table TaxonomyDivision
add constraint FKCFB817265F647111
foreign key (ItemFk)
references Item
这里 Division 是 Item 的子对象,Item 是 Statements 的子对象.原始数据如下所示:
Here Division is a child object of Item and Item is a child object of Statements. The original data looks like this:
Division1
Division2
Division1
Division3
结果应该是:
ItemNames
1, Division1
2, Division2
3, Division3
Statements
1
2
3
4
Item
1,1
2,2
3,1
4,3
Division
1
2
3
4
我认为前进的方向是使用 OUTPUT 但我不知道如何在这种相当复杂的情况下使用它(我知道如何进行批量插入等)
I think the way forward is to use OUTPUT but I don’t know how to use it in this fairly complicated case (I know how to do a bulk insert etc.)
期待任何反馈.谢谢.
最好的祝福,
基督徒
我目前正在使用循环来实现这一点,这是一种解决方案,但速度很慢.真的没有基于集合的方法吗?谢谢!
I am currently using loops to achieve this which is kind of a solution but very slow. Is there really no set based approach? Thanks!
基督徒
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