Dear list,
While inserting data into one of the oracle table's CLOB column using
zsql via python script, we observed that zope process (running in debug
mode) is getting terminated/killed if length of text data >= 4094 with
message on command prompt
Input string too long, limit 4096
Whereas for text data with length >=4001 and <=4093 - It throws
following error
OperationalError on <Products.mxODBCZopeDA.ZopeDA.DatabaseConnection
"DSN=test_clob_oracle" thread 3672/3672 at 0x3ac3530>: ('HY000', 1704,
'[Oracle][ODBC][Ora]ORA-01704: string literal too long\n', 6113)
python script details:
print context.clob_zsql_test(i_description='A'*4095).
return printed
zsql details -
INSERT INTO CLOB_TEST(description) VALUES(<dtml-sqlvar i_description
type="string">)
Table/column details :
id - number
description - clob
Where as if we use mxODBCZopeDA execute API with following insert query
syntax
string_value = 'A'*5000
query = """ INSERT INTO CLOB_TEST(document) VALUES(?) """
result = test_connection.execute(query, string_value)
it works fine even with text data having length > 10000
After googling on the same found that execute method uses/support
parameters binding (is it similar to oracle bind varibles ? thats may be
reason why it works well). Do we have similar support for zsql or is
there other workaround ?
Configuration/other details are as follows :
RDBMS : Oracle Database 10g Release 10.2.0.1.0
ODBC used : Oracle ODBC which shipped with Oracle-Client-10g
Python adapter : mxODBC Python ODBC Interface - 2.1
Related Zope Product : mxODBCZopeDA-1.0.10
Zope : Zope 2.11.1-final
Python : python 2.4.4
Operating system : win32
ZEO setup : Yes
No of ZEO nodes : one
Threads per ZEO node : 10
Any kind of pointers/suggestions would be of great help.
Thanking you,
Harshad.
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