Transact SQL :: Get Back (Identity) ID To The Other Table In SSIS Data Flow?

Jul 17, 2015

Table 1:

-------     -----                ----          ----
Name       Add                  No         RowID
-------     -----                 ----         -------

aa     #a-1,India                              10
bb     #a-1,India                              11                
aa     #a-1,India                              12

----------------------------------------------------

 table 1 inserting to Table 2 (Using 1st Data flow)

Table 2:

-------     -----                ----
Name       Add                 ID(Note:Here Identity1,1)
-------     -----                 ----
aa     #a-1,India                 1
bb     #a-1,India                 2
aa     #a-1,India                 3

----------------------------------------------------

My Requirement is Update  Table 1 set Column::No=Table 2.ID
                                                                       
based on Exact Match of
                                                                        
Table1.Name=Table2.Name  and
                                                                        
Table1.Add=Table2.Add

It means Get back the Id for Source Table 1

 2nd Data flow
             Source(Table1:Name, Add,No)
                          |

   --LOOKUP(Table2:Name, Add::Matched Look Columns Name, Add and
Tick Mark on ID)
                         |(Match)

   -->OLEDB Command: update Table1 set N0=? where  RowID=?(Here Param_0= NO ,Param_1=RowID)

Here My Issue is if  Table 1 had Duplicates(same Name, Add, but Row Id is different it is Updating Same ID for Table 1.No It means Get Back ID correctly not updating Result::

Table 1:

-------     -----                ----          ----
Name       Add                  No         RowID
-------     -----                 ----         -------
aa     #a-1,India                1              10
bb     #a-1,India                2              11                
aa     #a-1,India              1 12

----------------------------------------------------

My correct Output is     3      instead of Result:Table1 1.NO  1   where RowID =12

It caused by LOOKUP , It picking Top1 ID while Matching Look on fields.

How Should I update the (Identity) Get Back Table 2.ID to Source Table1. NO  in Above logic in SSIS?

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Last GASP On Insert Row In Table With Identity Field, And Get New Identity Back ?

Jul 9, 2006

While I have learned a lot from this thread I am still basically confused about the issues involved.

.I wanted to INSERT a record in a parent table, get the Identity back and use it in a child table. Seems simple.

To my knowledge, mine would be the only process running that would update these tables. I was told that there is no guarantee, because the OLEDB provider could write the second destination row before the first, that the proper parent-child relationship would be generated as expected. It was recommended that I create my own variable in memory to hold the Identity value and use that in my SSIS package.

1. A simple example SSIS .dts example illustrating the approach of using a variable for identity would be helpful.

2. Suppose I actually had two processes updating these tables, running at the same time. Then it seems the "variable" method will also have its problems. Is there a final solution other than locking the tables involved prior to updating them or doing something crazy like using a GUID for the primary key!

3. We have done the type of parent-child inserts I originally described from t-sql for years without any apparent problems. (Maybe we were just lucky.) Is the entire issue simply a t-sql one or does SSIS add a layer of complexity beyond t-sql that needs to be addressed?



TIA,



Barkingdog

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TIA,



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P.S. Or should I pass the identity value back in a variable and not make it part of the data stream?

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Details:

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I have a small question here is below how my data look

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ColC                          ColD
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'      '                         1/1/2015
2             X12134              ABCD                    
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DE02635                    3/1/2015

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ColC                          ColD
1         X12134              ABCD                    
DE02635                     1/1/2015
2          X12134              ABCD                    
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DE02635                     3/1/2015

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TITLE: Microsoft Visual Studio

------------------------------

Cannot show the editor for this task.

------------------------------

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------------------------------

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------------------------------

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