SQL> desc opc_act_messages
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 MESSAGE_NUMBER                            NOT NULL VARCHAR2(36)
 CONDITION_ID                              NOT NULL VARCHAR2(36)
 INSTRUCTION_ID                                     VARCHAR2(36)
 NODE_ID                                   NOT NULL VARCHAR2(36)
 NETWORK_TYPE                              NOT NULL NUMBER(5)
 MSG_GEN_NODE_ID                           NOT NULL VARCHAR2(36)
 LOG_ONLY_FLAG                             NOT NULL NUMBER(3)
 UNMATCHED_FLAG                            NOT NULL NUMBER(3)
 MSG_SOURCE_TYPE                           NOT NULL NUMBER(12)
 NOTIFICATION_FLAG                         NOT NULL NUMBER(3)
 TROUBLE_TICK_FLAG                         NOT NULL NUMBER(3)
 ACKN_AFTER_TT_FLAG                        NOT NULL NUMBER(3)
 MSGGRP_MISC_FLAG                          NOT NULL NUMBER(3)
 CREATION_TIME                             NOT NULL NUMBER(12)
 LOCAL_CREATION_TIME                                DATE
 RECEIVING_TIME                            NOT NULL NUMBER(12)
 LOCAL_RECEIVING_TIME                               DATE
 SEVERITY                                  NOT NULL NUMBER(3)
 AUTO_STATUS                               NOT NULL NUMBER(3)
 AUTO_NODE_ID                              NOT NULL VARCHAR2(36)
 AUTO_ANNO_FLAG                            NOT NULL NUMBER(3)
 AUTO_ACKN_FLAG                            NOT NULL NUMBER(3)
 OP_INIT_STATUS                            NOT NULL NUMBER(3)
 OP_INIT_NODE_ID                           NOT NULL VARCHAR2(36)
 OP_INIT_ANNO_FLAG                         NOT NULL NUMBER(3)
 OP_INIT_ACKN_FLAG                         NOT NULL NUMBER(3)
 ESCALATE_FLAG                             NOT NULL NUMBER(3)
 ASSIGN_FLAG                               NOT NULL NUMBER(3)
 INSTRUCTION_TYPE                          NOT NULL NUMBER(3)
 FORWARD                                   NOT NULL NUMBER(3)
 READONLY                                  NOT NULL NUMBER(3)
 ORIGINAL_MSGID                            NOT NULL VARCHAR2(36)
 BUFFER_FLAG                               NOT NULL NUMBER(3)
 UNBUFFER_TIME                                      NUMBER(12)
 LOCAL_UNBUFFER_TIME                                DATE
 TIME_DIFF                                 NOT NULL NUMBER(12)
 LOCAL_AGT_CREATION_TIME                            DATE
 ACKN_FLAG                                 NOT NULL NUMBER(3)
 ACKN_TIME                                          NUMBER(12)
 LOCAL_ACKN_TIME                                    DATE
 ACKN_USER                                          VARCHAR2(20)
 MSG_SOURCE_NAME                                    VARCHAR2(32)
 APPLICATION                                        VARCHAR2(254)
 MESSAGE_GROUP                                      VARCHAR2(32)
 OBJECT                                             VARCHAR2(254)
 NOTIFY_SERVICES                                    VARCHAR2(254)
 AUTO_CALL                                          VARCHAR2(2000)
 OP_INIT_CALL                                       VARCHAR2(2000)
 MESSAGE_TYPE                                       VARCHAR2(32)
 RESOLVED_INSTR_PAR                                 VARCHAR2(254)
 SERVICE_NAME                                       VARCHAR2(254)
 MSG_KEY                                            VARCHAR2(254)
 DUPL_COUNT                                NOT NULL NUMBER(12)
 LAST_TIME_RECEIVED                                 NUMBER(12)
 LOCAL_LAST_TIME_RECEIVED                           DATE
 CMA_FLAG                                           NUMBER(3)
 
SQL> desc opc_msg_text
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 MESSAGE_NUMBER                            NOT NULL VARCHAR2(36)
 ORDER_NUMBER                              NOT NULL NUMBER(5)
 TEXT_PART                                          VARCHAR2(254)
