Get SCOPE_IDENTITY value when inserting bulk records for SQL TableType

问题

I have following table structure, for convenience purpose I am only marking individual columns

Table_A (Id, Name, Desc)
Table_1 (Id this is identity column, Name....)
Table_2 (Id this is identity column, Table_A_Id, Table_1_Id)

The relationship between Table_1 and Table_2 is 1...*

Now I have created a table type for Table_A called TType_Table_A (which only contains Id as column and from my C# app I send multiple records). I have achieved this bulk insert functionality as desired.

What I need is when I insert records into Table_2 from TType_Table_A say with below statements, I would like to capture the Id of Table_2 for each record inserted

declare @count int = (select count(*) from @TType_Table_A); --a variable declared for TType_Table_A

if(@count > 0)
  begin
    insert into Table_2(Table_A_Id,Table_1_Id)
    SELECT @SomeValue, @SomeValueAsParameter FROM @TType_Table_A;
  end;

Now say if 2 records are inserted, I would like to capture the Id for each of these 2 records.

Any input/help is appreciated

This is what I know how it can be achieved, but I want to reduce DB calls from my app or user cursor in stored procedure

Insert record in Table_1 and return back the Id Loop.....through records and insert record in Table_2 and return back the Id

Use cursor in stored procedure when inserting/selecting from TableType

回答1:

I assume this is Sql Server? Then you can make use of the OUTPUT clause, like so:

declare @NewId table (MyNewId INT) 

 insert into Table_2(Table_A_Id,Table_1_Id)
 output INSERTED.MyNewId INTO @TempTable(MyNewID)
 SELECT SomeValue, SomeValueAsParameter FROM @TType_Table_A;

 SELECT * FROM @NewId

来源：https://stackoverflow.com/questions/17285679/get-scope-identity-value-when-inserting-bulk-records-for-sql-tabletype

标签

sql

sql-server

bulkinsert

scope-identity