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.