Hello,
While trying to insert into an Oracle table with one column defined as
CLOB, I get the following error:
File
"/home/xxxxx/.local/lib/python3.4/site-packages/sqlalchemy/engine/default.py"
, line 442, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.NotSupportedError: (NotSupportedError) Variable_TypeByValue
(): unhandled data type cx_Oracle.LOB
Statement: 'INSERT INTO contract_cancellation_test_s ( contract_id,
cancel_dt, cancellation_obj) VALUES ( :contract_id, :cancel_dt,
:cancellation_obj) '
Parameters: {'contract_id': 23.0, 'cancel_dt': datetime.datetime(2015, 1, 14
, 0, 0),'cancellation_obj' : <cx_Oracle.LOB object at 0x7f0a427be4f0> }
Versions:
Python: 3.4
SQLAlchemy: 0.9.9
cx_Oracle: 5.1.3
Here is code snippet: I am selecting records from one table and inserting
into another (both source and target are different schema - as handled by
source_conn, target_conn)
# Sample query: SELECT CONTRACT_ID, CANCEL_DT, CANCELLATION_OBJ from
SOURCE_TABLE
query_rs = source_conn.execute(select_query)
while True:
row = query_rs.fetchone()
if not row:
query_rs.close()
break
row_dict = dict(row)
insert_target_stmt = l_target_table.insert()
insert_target_stmt.execute(row_dict)
(My original code was using fetchmany() instead of fetchone(), but I
simplified it to first make it work on row by row.)
Both the tables (source and target) are defined as :
CONTRACT_ID NUMBER(19,0)
CANCEL_DT TIMESTAMP(6)
CANCELLATION_OBJ CLOB
I have read the relevant parts of sqlalechmy documentation - and have
played with following parameters, but the error remains : auto_convert_lobs,
auto_setinputsizes, arraysize
I can't figure out what I am doing wrong here.
Any help?
Thanks!
GP
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