XID | 
RAW(8) | 
  | 
Transaction identifier | 
START_SCN | 
NUMBER | 
  | 
Transaction start system change number (SCN) | 
START_TIMESTAMP | 
DATE | 
  | 
Transaction start timestamp | 
COMMIT_SCN | 
NUMBER | 
  | 
Transaction commit system change number (null for active transactions) | 
COMMIT_TIMESTAMP | 
DATE | 
  | 
Transaction commit timestamp (null for active transactions) | 
LOGON_USER | 
VARCHAR2(30) | 
  | 
Logon user for the transaction | 
UNDO_CHANGE# | 
NUMBER | 
  | 
Undo system change # (1 or higher) | 
OPERATION | 
VARCHAR2(32) | 
  | 
Forward-going DML operation performed by the transaction: 
- 
D - Delete
  
- 
I - Insert
  
- 
U - Update
  
- 
B
  
- 
UNKNOWN
    | 
TABLE_NAME | 
VARCHAR2(256) | 
  | 
Name of the table to which the DML applies | 
TABLE_OWNER | 
VARCHAR2(32) | 
  | 
Owner of the table to which the DML applies | 
ROW_ID | 
VARCHAR2(19) | 
  | 
Rowid of the row that was modified by the DML | 
UNDO_SQL | 
VARCHAR2(4000) | 
  | 
SQL to undo the DML indicated by OPERATION |