Deletion of duplicated table entry (SAP DB)

Question

Hi!
I am facing with the following error after the system copy of SAP ERP 2005 on Windows migrated from MS SQL to SAP DB.
By entering into the db-relevant tcodes (DB13, dbacockpit, etc.) the following error appears:
Runtime Errors ITAB_DUPLICATE_KEY
Date and Time 24.05.2008 14:01:23
Short text
A row with the same key already exists.
What happened?
Error in the ABAP Application Program
The current ABAP program "CL_DB6_SYS====================CP" had to be
terminated because it has come across a statement that unfortunately cannot be executed.
Error analysis
An entry was to be entered into the table "\CLASS=CL_DB6_SYS\DATA=SYSTEMS"
(which should have had a unique table key (UNIQUE KEY)).
However, there already existed a line with an identical key.
The insert-operation could have ocurred as a result of an INSERT- or
MOVE command, or in conjunction with a SELECT ... INTO.
The statement "INSERT INITIAL LINE ..." cannot be used to insert several
initial lines into a table with a unique key.
My questions:
1) How can I identify which DB-table is relevant?
2) How can I delete the duplicated entry?
a) with SAP tcodes
b) on DB level (what is the procedure)
Thank you very much!
regards
Thom

Answer 1

Hello Thom
> Error in the ABAP Application Program
> The current ABAP program "CL_DB6_SYS====================CP" had to be
> terminated because it has come across a statement that unfortunately cannot be executed.
> Error analysis
> An entry was to be entered into the table "\CLASS=CL_DB6_SYS\DATA=SYSTEMS"
> (which should have had a unique table key (UNIQUE KEY)).
Apparently there is a duplicate entry in the static private attribute SYSTEMS of this class.
If you look at the definition of type DB6CC_SYSTEMS you see where the error cause lies:
TYPE-POOLS: DB6CC. " DB6: Central Type Declarations for CCMS Monitoring
  db6cc_systems type hashed table of db6admsys
                   with unique key sysid,
I check the Where-Used-List for data element DB6DBREL of structure DB6ADMSYS which is used in DB table DB6NAVSYST. Thus, my guess is here is your table you are searching for.
However, you need to find out where the duplicated entries in the class (instance) come from.
Regards
  Uwe