IDOC to MSsql, error in mapping(Violation of PRIMARY KEY constraint)

Question

Hi All,
I'm working with MATMAS IDOC  to MSSql. My SQL structure is of 8 tables(multiple statements) with primary key. In mapping i have used UPDATE_INSERT in action field for all the tables but still im getting "Violation of PRIMARY KEY constraint" for the last table structure. first 7 tables are single occurances but the 8th structure data is coming multple times from IDOC(E1MARMM).
my 8th table structure is :
STATEMENT8                                IDOC(MAPPED)
TABLE8
ACTION                                      UPDATE_INSERT
TABLE                                           TABLENAME
ACCESS     0 to Unbounded            MAPPED with E1MARMM
Item_CD                                used oneasmany +splitbyvalue with MATNR
Plant_ID                                  used oneasmany +splitbyvalue with WERKS  
EAN_CAT                                 used oneasmany +splitbyvalue with NUMTP
EAN                                             used oneasmany +splitbyvalue with EAN11
Numerator_For_Conversion_To_BaseUOM
Display_UOM
Denominator_for_conversion_To_baseUOM
KEY           0 to Unbounded                 MAPPED with E1MARMM
Item_CD                                used oneasmany +splitbyvalue with MATNR
Plant_ID                                  used oneasmany +splitbyvalue with WERKS  
EAN_CAT                                 used oneasmany +splitbyvalue with NUMTP
EAN                                             used oneasmany +splitbyvalue with EAN11
Display_UOM
in test tab its fine and fetching number of times according to MARMM segments  but in END to END testing its triggering an error stating that
""Message processing failed. Cause: com.sap.engine.interfaces.messaging.api.exception.MessagingException: Error processing request in sax parser: Error when executing statement for table/stored proc. 'MM_EAN' (structure 'STATEMENT8'): com.microsoft.sqlserver.jdbc.SQLServerException: Violation of PRIMARY KEY constraint 'PK_MM_EAN'. Cannot insert duplicate key in object 'dbo.MM_EAN'.  ""
Plz help me regarding this..

Answer 1

Hi team,
How resolve the below error 
Violation of PRIMARY KEY constraint 'PK_test'. Cannot insert duplicate key in object 'dbo.test'. The duplicate key value is (12610). (Source: MSSQLServer, Error number: 2627) ?
Thanks,
Ram
RAM
There can be two reasons
1. The insert script used is having multiple instances of the records with Key as 12610 returned from the source query. If this is the issue add a logic to include only the unique set of id values for records by avoiding duplicates. There are several approaches
for this like using ROW_NUMBER with PARTITION BY, using a join with derived table etc
2. The record with Key 12610 already exist in your destination table and your script is again trying to insert another instances of record with same key. This can be avoided by adding a NOT EXISTS condition with a subquery which will check and return only
those records which doesnt already exist in the source
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