I had this (what seems to be a) simple question asked today and I'm afraid I didn't like my answer. Does anyone know the proper answer to this one:
Any ideas on how I can constrain a lookup or merge join based on the dimension row's effective and expired dates so three criteria are needed as follows: 1. DataStagingSource.ModifyDate < DataWarehouseDimension.RowExpiredDate AND 2. DataStagingSource.ModifyDate >= DataWarehouseDimension.RowEffectiveDate AND 3. DataStagingSource.NaturalKey = DataWarehouseDimension.NaturalKey
Hi, I am pretty new to SSIS. I am transferring some rows from 2 source tables to 1 destination table. The 2 source tables have 1000 rows.They act as the 2 inputs to a merge join transformation where i perform the join between the 2 tables based on a couple of fields. But for some reason the output of the merge join gives me about 1018 rows .Shouldnt the destination also have only 1000 rows? How do i solve tis problem?
I need to run an Insert query which pulls data from a table located on server A database AA Table AAA conditional on (or JOINED with) Table BBB in database BB sever B. In SQL 2000 it could be done as:
From Server A: sp_addlinkedserver B INSERT dbo.ResultsTable SELECT SourceTable.* FROM B.BB.dbo.BBB SourceTable INNER JOIN A.AA.dbo.AAA ConditionTable ON SourceTable.RecID = ConditionTable.RecID sp_dropserver B
In SSIS one of the possible solutions is to use a package which does the following: OPEN A + OPEN B-> SORT A + SORT B->MERGE JOIN A and B->OUTPUT RESULT
The problem with this approach is that it's extremely slow for large datafiles (50M records each)
1) In the procedure above could the SORT step be avoided? 2) Is there another approach to run cross-servers JOIN in SSIS?
I have a merge join (full outer join) task in a data flow. The left input comes from a flat file source and then a script transformation which does some custom grouping. The right input comes from an oledb source. The script transformation output is asynchronous (SynchronousInputID=0). The left input has many more rows (200,000+) than the right input (2,500). I run it from VS 2005 by right-click/execute on the data flow task. The merge join remains yellow and the task never finishes. I do see a row count above the flat file destination that reaches a certain number and seems to get stuck there. When I test with a smaller file on the left it works OK. Any suggestions?
Is there a way to do a super-table join ie two table join with no matching criteria? I am pulling in a sheet from XL and joining to a table in SQLServer. The join should read something like €œfor every row in the sheet I need that row and a code from a table. 100 rows in the sheet merged with 10 codes from the table = 1000 result rows.
This is the simple sql (no join on the tables):
select 1.code, 2.rowdetail from tblcodes 1, tblelements 2
I need to use Merge Join transformation to join two sources. One is from a PIVOT transformation and one of the output columns is ISSORTED, the other is from an OLE DB Source using a query. The Merge Join transformation requires both input source have to be sorted. I cannot find the ISSORTED property on the OLE DB Source!! I tried to use Derived/ copy transformations but cannot find the property also. How can set the OLE query sorted in order to use the MergeJoin?
I am new to this SSIS. I have a simple join query like this select a.id from tbl_a a, tbl_b b where a.id = b.id and I want insert the result to my temp table. the query results is 1500 rows. but when I use merge join in SSIS, it only inserts to my temp table 4 rows. I use inner join and I already set the IsSorted to true and specify the sort position for the columns in both source tables In tbl_a, there are one million rows, in tbl_b, there are 2000 rows. I don't know why the merge join cannot work out my task.Is there other way that I can just run this simple join query in SSIS to copy the data? Please help, thanks in advance.
I have a package where I use merge join for two sorted inputs and the output is stored in a raw file.
In another package, the raw file from above package is again merge joined with another sorted input. Now my question is....do we need to sort again the raw file from first package? or is it OK to set the isSorted property to True and define the sort keys?
Hi guys! I'm trying to figure out how to join 3 tables, but I can't seem to find a solution. What I want to do is to put table 1, table 2 and table 3 into table_merged. table_merged = table 1 + table 2 + table 3 Is it possible to merge tables even if they have different fields?
Hi, I'm using a Merge Join Component of Inner Join type to retrieve from the right pipeline some records to append to the ones coming from left pipeline according to the join citerias defined on the compnent. Is there any way to know which are the records coming from the left pipeline that doesn't match the join criterias? In the following I'll try to do an axample.
On exiting from the MergeJoin, defining €œColumn0€? for LT as join key and €œColumnA€? for RT and as output data all the columns of the LT pipeline and the only ColumnB from the RT pipeline it should be obtained the following records:
In the data flow of Intergration Service, my understanding is that the "Merge Join" only does the "join", there is no way to input the "where" clause. If I need to input the the "Where" clause or selection criteria, how should I do it in Integration Service?
I've run into something that looks like a bug to me but I wanted to run it by the board:
Merge join 2 sorted tables.
Table1: ColumnA : Sort Order 1, ColumnB Sort Order 2
Table2 : ColumnA: Sort Order 1, ColumnB Sort Order 2, ColumnC not sorted
Merge Join the two tables on ColumnA and ColumnB...
Choose the following as output columns
A + B + C = works
C = works
A + C = works
B + C = NOT work.. error message: The column with the SortKeyPosition value of 0 is not valid. It should be 2.
Basically if you choose one or more of the sorted columns in the output at least one of them has to be the column with Sort position 1 or you'll get that error.
Is this a bug or intentional? If you do not have sort column 1 in the output that output could no longer be considered sorted... so perhaps the error is related to that (instead of error I'd expect some warning about the sorting). Interesting that it lets you choose C only becuase that also makes the output unsorted.
I need to take certain items of data from four different tables and out them into one table.
Unfortunately my source data's version of SQL does not support the LEFT JOIN keyword which has left me with a bit of a problem.
I saw the merge join in SSIS and used it to get data from two of the tables and stick them in the destination and it all worked fine.
That got me thinking, is it possible to create a second merge join transformation within the same data flow task for the remaining two tables and then join the output of both the merge joins to give me the data I need from all four tables in one output?
I am trying to normalize data using the unpivot transform. I have to unpivot using more than one key so I have a multicast feeding into two unpivot transforms then into a sort transform. This is where my problem starts - I have tried using a Merge Join (inner Join) transform but dont get the expected result.
My original data looks like this:
After the mulitcast - unpivot - Merge Join, the expected result is: (pk_newID is an identity)
However with a Merge-Join (inner join on pk_ID) I get
I don't know if anyone is having this issue with merge join. I built a custom SCD to handle insert, update and delete records. So far I am having success with the delete but after I do a union all combining the updated and new rows, I merge them with the source. My proble is that is I have 10 records coming from the flow and I have say 30 records from the source, it will only load about half of these records. IBy the way, I am doing inner join. When I copy the two set of data and I manually join them, I get the result I expect. Is there something I am missing in the merge join configuration?
i'm merge joining 2 data sources, one is oracle and the other is excel...the problem is in the oracle source, it's a sql statement like:
select hdr.div_ord_no, hdr.mtr_no, hdr.prod_cd from qctrl_div_ord_header hdr, (select max(sub.eff_dt_from) min_eff_dt_from, div_ord_no from qctrl_div_ord_header sub group by div_ord_no ) tmp where hdr.eff_dt_from = tmp.min_eff_dt_from and hdr.div_ord_no = tmp.div_ord_no
having that sql statement, merging will come out with 0 rows
however, having a simple query like:
select hdr.div_ord_no, hdr.mtr_no, hdr.prod_cd from qctrl_div_ord_header hdr
merging will come out with 2 rows
you may think that the data in the first sql statement is not there for the merge, which causing the 0 rows, however, the data is there, i'm only joining by one column and definitely the data is there, the merge result should be 2 rows for both query statements
i believe this is a problem with SSIS, anyway around this?
This is what i expect in my left outer join: AGENT_CODE; REGION_ID; COUNTRY_ID;FIRST_NAME; LAST_NAME AA;01;01;Maradona;Diego; BB;01;01;Maradona;Diego; CC;01;02;NULL;NULL CC;02;02;NULL;NULL; DD;01;01;Zidane;Zinedine
600 records in the destination table, with only 145 Not null first_name and last_name
The issorted property has been set to true in the 2 sources tables, the numkeyscolumns property is set to 1, and the join keys are both checked. When i execute the sql query using the editor in sql server, the result is good, i've got what i've expected. But when i run the dataflow, the destination has got 600 records, but the columns FIRST_NAME and LAST_NAME are not null only 8 times, the 592 other lines are NULL. Could someone explain to me why i lost 145-8=137 FIRST_NAME and 145-8=137 LAST NAME ? Thank you in advance.
i have 2 input files,those are sorted on account no field , i use to merge these 2 files data into 1 file.i took merge join trans.... with inner join but i didn't get the output fields ,plz help me regarding this issue.......
I am trying to use the merge join example in the following link. To import new records only.
The problem is that for some unkown reason the join is not woeking correctly. One of the records is incorrectly showing a NULL on the output. This would indicate that it would be a new record, but it is not it already exists in the new table.
I created a dummy table in SQL and executed the same join and I always get the right answer. What the heck could be wrong?
For example. Table A has 20 records Table B has 3 records. Table B has the new records I want to import into Table A. The package runs corectly the first time, only importing the 3 new records. Then the next time the package runs it shows 1 of the 3 records as being new still, and tries to import the record causing a PK error. Adding a watch to the MERGE output shows that the one record has a NULL on the join.
I'm trying to compare two fields between two tables using a Merge Join that runs into a conditional. This conditional sorts mismatched rows from validated ones but its returning incorrect mismatches (which means the mismatch is actually a match).
TABLE1 has two DT_STR fields with length 16 and TABLE2 had two DT_STR fields with length 32.
I've used a data conversion component to lengthen the first table's fields to a length of 32 but there still seems to be incorrect mismatches. For example TABLE1 had "AAA" and "BBB" and this appeared as a mismatch. If I used Query Analyzer to check TABLE2 for this criteria it would exist (which means it IS a match).
Is there any way to view hidden characters (i.e. carriage returns, tabs) in those fields? I've tried using RTRIM in my SQL Query for both my data sources and they still don't match up.