存储过程、插入数据后直接过去主键id

DECLARE @sql nvarchar(4000)
DECLARE @cou int
SET @sql='INSERT INTO people values('''+'xiaohong'+''');select @temp=@@IDENTITY' 
EXEC sp_executesql @sql, N'@temp int out', @cou OUT
INSERT INTO child VALUES(@cou, '小兰')

CREATE PROC chjj @name nvarchar(1000)
AS
BEGIN
　　DECLARE @sql nvarchar(4000)
　　DECLARE @cou int
　　SET @sql='INSERT INTO people values('''+@name+''');select @temp=@@IDENTITY' 
　　EXEC sp_executesql @sql, N'@temp int out', @cou OUT
　　IF @cou > 85
    BEGIN
     INSERT INTO child VALUES(@cou, '小兰')
    END
END
调用存储过程：EXEC dbo.chjj '李厚鑫s'
sql存储过程怎么接收datatable作为入参