ORA-01401 error on char column with oracle oci driver

Question

Hello,
We found a potential bug in the kodo.jdbc.sql.OracleDictionary class
shipped as source with Kodo:
In newer Kodo versions (at least in 3.3.4), the method
public void setString (PreparedStatement stmnt, int idx, String
val,          Column col)
has the following code block:
// call setFixedCHAR for fixed width character columns to get padding
// semantics
if (col != null && col.getType () == Types.CHAR
&& val != null && val.length () != col.getSize ())
((OraclePreparedStatement) inner).setFixedCHAR (idx, val);
This block seems to be intended for select statements but is called on
inserts/updates also. The latter causes a known problem with the Oracle
oci driver when settings CHAR columns as FixedCHAR, which reports an
ORA-01401 error (inserted value too large for column) when definitely no
column is too long. This does not happen with the thin driver.
We reproduced this with 8.1.7 and 9.2.0 drivers.
For us we solved the problem by subclassing OracleDictionary and removing
the new code block.
Regards,
Rainer Meyer
ELAXY Financial Software & Solutions GmbH & Co. KG

Answer 1

Rainer-
I read at
re:'ORA-01401 inserted value too large for column' - 9i that:
"This is fixed in Oracle9i Release 2"
Can you try that version of the driver? Also, does it fail in the Oracle
10 OCI driver?
Rainer Meyer wrote:
Hello,
We found a potential bug in the kodo.jdbc.sql.OracleDictionary class
shipped as source with Kodo:
In newer Kodo versions (at least in 3.3.4), the method
public void setString (PreparedStatement stmnt, int idx, String
val,          Column col)
has the following code block:
// call setFixedCHAR for fixed width character columns to get padding
// semantics
if (col != null && col.getType () == Types.CHAR
&& val != null && val.length () != col.getSize ())
((OraclePreparedStatement) inner).setFixedCHAR (idx, val);
This block seems to be intended for select statements but is called on
inserts/updates also. The latter causes a known problem with the Oracle
oci driver when settings CHAR columns as FixedCHAR, which reports an
ORA-01401 error (inserted value too large for column) when definitely no
column is too long. This does not happen with the thin driver.
We reproduced this with 8.1.7 and 9.2.0 drivers.
For us we solved the problem by subclassing OracleDictionary and removing
the new code block.
Regards,
Rainer Meyer
ELAXY Financial Software & Solutions GmbH & Co. KG
Marc Prud'hommeaux
SolarMetric Inc.