while performing an editing session in ArcMap, you may receive the following error message:

Unable to create logfile system tables. User perhaps lacks permissions or resources to create tables

solution:

Your ArcSDE Geodatabase is configured for a “standalone log file architecture”.

for more information:http://resources.arcgis.com/en/help/main/10.2/index.html#/Log_file_table_configuration_options_for_geodatabases_in_Oracle/002n00000014000000/

use the “sdeconfig” command to list the parameters or the server_config system table under your SDE schema.

The user will require the following permissions granted to him:

CREATE SESSION
CREATE TABLE
CREATE TRIGGER
CREATE SEQUENCE
CREATE PROCEDURE

cheers!