Oracle database link to MySQL select only one row

Hello,
I have created a connection from the Oracle batabase 11.2 to a MySQL database via database link. The following statement shows, that 35 rows are in the mySQL table:
SQL> select count(*) from "main_pages"@MOREWEB;
COUNT(*)
        35
But a normal select statement only return 1 row.
SQL> select "subject" from "main_pages"@MOREWEB;
subject
Übersicht: Referenzen
I am using the mysql-connector-odbc-3.51.30-winx64 driver. A newer version cann't be installed because on Windows Server 2008 R2 I get an error with an missing dll-file. The DataDirect-ODBC-driver is not possible, because we like to use the free MySQL-database an DataDirect only support the enterprise edition.
I also have tried to limit the HS_OPEN_CURSORS or dont limit the HS_FDS_FETCH_ROWS, but there is no difference in the result. I always get only one row.
HS Init.ora
# This is a sample agent init file that contains the HS parameters that are
# needed for the Database Gateway for ODBC
# HS init parameters
HS_FDS_CONNECT_INFO = moreweb
HS_FDS_TRACE_LEVEL = ON
HS_FDS_FETCH_ROWS=1
# Environment variables required for the non-Oracle system
#set <envvar>=<value>
HS tracefile
Oracle Corporation --- MITTWOCH   NOV 05 2014 13:56:22.066
Heterogeneous Agent Release
11.2.0.1.0
Oracle Corporation --- MITTWOCH   NOV 05 2014 13:56:22.066
    Version 11.2.0.1.0
HOSGIP for "HS_FDS_TRACE_LEVEL" returned "ON"
HOSGIP for "HS_OPEN_CURSORS" returned "50"
HOSGIP for "HS_FDS_FETCH_ROWS" returned "1"
HOSGIP for "HS_LONG_PIECE_TRANSFER_SIZE" returned "65536"
HOSGIP for "HS_NLS_NUMERIC_CHARACTER" returned ".,"
HOSGIP for "HS_KEEP_REMOTE_COLUMN_SIZE" returned "OFF"
HOSGIP for "HS_FDS_DELAYED_OPEN" returned "TRUE"
HOSGIP for "HS_FDS_WORKAROUNDS" returned "0"
HOSGIP for "HS_FDS_MBCS_TO_GRAPHIC" returned "FALSE"
HOSGIP for "HS_FDS_GRAPHIC_TO_MBCS" returned "FALSE"
HOSGIP for "HS_FDS_RECOVERY_ACCOUNT" returned "RECOVER"
HOSGIP for "HS_FDS_TRANSACTION_LOG" returned "HS_TRANSACTION_LOG"
HOSGIP for "HS_FDS_TIMESTAMP_MAPPING" returned "DATE"
HOSGIP for "HS_FDS_DATE_MAPPING" returned "DATE"
HOSGIP for "HS_FDS_CHARACTER_SEMANTICS" returned "FALSE"
HOSGIP for "HS_FDS_MAP_NCHAR" returned "TRUE"
HOSGIP for "HS_FDS_RESULTSET_SUPPORT" returned "FALSE"
HOSGIP for "HS_FDS_RSET_RETURN_ROWCOUNT" returned "FALSE"
HOSGIP for "HS_FDS_PROC_IS_FUNC" returned "FALSE"
HOSGIP for "HS_FDS_REPORT_REAL_AS_DOUBLE" returned "FALSE"
using mpgw as default value for "HS_FDS_DEFAULT_OWNER"
HOSGIP for "HS_SQL_HANDLE_STMT_REUSE" returned "FALSE"
SQL text from hgopars, id=1, len=36 ...
     00: 53454C45 43542043 4F554E54 282A2920 [SELECT COUNT(*) ]
     10: 46524F4D 20606D61 696E5F70 61676573 [FROM `main_pages]
     20: 60204131                             [` A1]
Deferred open until first fetch.
Performing delayed open.
SQL text from hgopars, id=1, len=40 ...
     00: 53454C45 43542041 312E6073 75626A65 [SELECT A1.`subje]
     10: 63746020 46524F4D 20606D61 696E5F70 [ct` FROM `main_p]
     20: 61676573 60204131                    [ages` A1]
Deferred open until first fetch.
Performing delayed open.
Please can help me someone.
Thanks.
Bianca

mxallen wrote:
Bianca,
If you log directly into MySQL and issue the same query (select "subject" from "main_pages";) what data is returned?
I looks to me that you count is the number of rows in the entire table "main_pages"
while you select is for the data in the "subject" column only.
This seems to indicate that you have just one row in that subject column.
Regards,
Matt
WHAATT?
What do you mean by "just one row in that subject column"?
That makes no sense at all. A row is a row. A column is a part of a row. All rows have all columns, though not all columns of all rows will necessarily have an assigned value. Lacking a WHERE clause to filter rows, any SELECT should return all rows.

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Select from Oracle to MySQL returns only one row

Environment:
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mysql-connector-odbc-5.1.7-0.i386.rpm
unixODBC 2.3.0
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I've create a table like yours:
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Edited by: 963214 on Oct 5, 2012 10:12 AM
Edited by: 963214 on Oct 5, 2012 10:40 AM

try this... hope this helps...
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select '4' as aid,'trevor' as anm from dual union all
select '5' as aid,'jess' as anm from dual
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select '1' aid from dual union all
select '2' aid from dual union all
select '2' aid from dual union all
select '3' aid from dual union all
select '3' aid from dual union all
select '3' aid from dual union all
select '4' aid from dual union all
select '4' aid from dual union all
select '4' aid from dual union all
select '4' aid from dual union all
select '4' aid from dual union all
select '5' aid from dual
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Ranit B.
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Copyright (c) 1991, 2007, Oracle. All rights reserved.
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Version                   TNSLSNR for 64-bit Windows: Version 10.2.0.4.0 - Production
Start Date                20-JUL-2010 12:01:42
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Edited by: garuka on Jul 20, 2010 4:08 AM
Edited by: garuka on Jul 20, 2010 4:09 AM

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Copyright (c) 1991, 2010, Oracle. All rights reserved.
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(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=10.16.72.176)(PORT=1522)))
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Service "bookdb" has 1 instance(s).
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The command completed successfullyEdited by: garuka on Jul 20, 2010 7:42 AM

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Nasir,

There is two method.
One of that
(1) Buy Oracle Transparent Gateway for AS400/DB2 and install it to AS400.
(2) Set tnsnames.ora for connecting to AS400/DB2.
(3) Create database link
http://download-west.oracle.com/docs/html/A97615_01/toc.htm
Another of that
(1) Get odbc driver for AS400/DB2 (on your OS executing Oracle)
(2) Set listener.ora, inithsodbc.ora and tnsnames.ora.
(3) Create database link
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96544/gencon.htm#1004729

How to select only one record at a time in ALV

Hi all,
I have to use ALV report. Each record on the report output should have a button (or radio button) which will allow the record to be selected. My requirement is to select only one record at a time.
please guide me how to proceed further.
regards
manish

hi
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/snippets/sampleCheckBoxProgram
Regards
Pavan

Oracle database link to MySQL select only one row

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