SQL error in the database when accessing a table.

Question

Hi,
I got below error at production server. Please suggest how to reslove this error.
<br>
<br>
<br>
Runtime Errors         DBIF_RSQL_SQL_ERROR
<br>
Exception              CX_SY_OPEN_SQL_DB
<br>
Date and Time          02.01.2011 15:55:06
<br>
<br>
<br>
<br>
<br>
Short text
<br>
SQL error in the database when accessing a table.
<br>
<br>
<br>
How to correct the error
<br>
Database error text........: "[10054] TCP Provider: An existing connection was
<br>
forcibly closed by the remote host.
<br>
[10054] Communication link failure"
<br>
Internal call code.........: "[RSQL/INSR/SWFCNTBUF ]"
<br>
Please check the entries in the system log (Transaction SM21).
<br>
<br>
If the error occures in a non-modified SAP program, you may be able to
<br>
find an interim solution in an SAP Note.
<br>
If you have access to SAP Notes, carry out a search with the following
<br>
keywords:
<br>
<br>
"DBIF_RSQL_SQL_ERROR" "CX_SY_OPEN_SQL_DB"
<br>
"CL_SWF_CNT_FACTORY_SHMEM======CP" or "CL_SWF_CNT_FACTORY_SHMEM======CM001"
<br>
|    "ADD_INSTANCE"         
<br>
<br>
<br>
Information on where terminated
<br>
Termination occurred in the ABAP program "CL_SWF_CNT_FACTORY_SHMEM======CP" -
<br>
in "ADD_INSTANCE".
<br>
The main program was "SAPMSSY1 ".
<br>
<br>
In the source code you have the termination point in line 16
<br>
of the (Include) program "CL_SWF_CNT_FACTORY_SHMEM======CM001".
<br>
The termination is caused because exception "CX_SY_OPEN_SQL_DB" occurred in
<br>
procedure "ADD_INSTANCE" "(METHOD)", but it was neither handled locally nor
<br>
declared
<br>
in the RAISING clause of its signature.
<br>
<br>
The procedure is in program "CL_SWF_CNT_FACTORY_SHMEM======CP "; its source
<br>
code begins in line
<br>
1 of the (Include program "CL_SWF_CNT_FACTORY_SHMEM======CM001 ".
<br>
<br>
<br>
<br>
Source Code Extract
<br>
<br>
Line
SourceCde
<br>
<br>
1
METHOD add_instance .
<br>
2
<br>
3
data: ls_id type swfcntbuf.
<br>
4
<br>
5
check buffer method - store in local buffer if necessary
<br>
6
retcode = cl_swf_cnt_factory=>add_instance( ibf_por = ibf_por instance = instance ).
<br>
7
<br>
8
CHECK m_buffer_method EQ mc_buffer_shared.
<br>
9
<br>
10
append key to list of tasks to add stored in database table SWFCNTBUF
<br>
11
will be evaluated by build process for shared memory area (UPDATE_BUFFER method)
<br>
12
<br>
13
ls_id-mandt = sy-mandt.
<br>
14
ls_id-id    = ibf_por.
<br>
15
<br>
>>>>>
INSERT swfcntbuf CONNECTION r/3*wfcontainer
<br>
17
FROM ls_id.
<br>
18
<br>
19
IF sy-subrc EQ 0.
<br>
20
Commit seems to be necessary always, even if INSERT has failed, to get rid of
<br>
21
database locks
<br>
22
COMMIT CONNECTION r/3*wfcontainer.
<br>
23
ENDIF.
<br>
24
<br>
25
ENDMETHOD.
<br>

Answer 1

duplicate here SQL error in the database when accessing a table.
Do not post the same question in more than on forum.