Oracle Dictionary: check what table belongs a column from a view

hi,
Is there any way to check in the oracle data dictionary what is the table that a column in a view belongs to?
Imagine this
create view xpto as
select table_a.col1, table_a.col2, table_b.column1
from table_a, table_b
I want to know that column1 in the view xpto belongs to the table_b.
Is this possible? How?
Best Regards,
Joao Oliveira

Hi Mat,
I know that I can check the table columns in that view or in user_Tab_columns. The problem is that some views have columns from different tables that have the same name. Understood?
So I really need to know what tables are part of the view query.
Thanks
Joao

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SQL> desc user_tab_columns
Name                                                              Null?    Type
TABLE_NAME                                                        NOT NULL VARCHAR2(30)
COLUMN_NAME                                                       NOT NULL VARCHAR2(30)
DATA_TYPE                                                                  VARCHAR2(106)
DATA_TYPE_MOD                                                              VARCHAR2(3)
DATA_TYPE_OWNER                                                            VARCHAR2(30)
DATA_LENGTH                                                       NOT NULL NUMBER
DATA_PRECISION                                                             NUMBER
DATA_SCALE                                                                 NUMBER
NULLABLE                                                                   VARCHAR2(1)
COLUMN_ID                                                                  NUMBER
DEFAULT_LENGTH                                                             NUMBER
DATA_DEFAULT                                                               LONG
NUM_DISTINCT                                                               NUMBER
LOW_VALUE                                                                  RAW(32)
HIGH_VALUE                                                                 RAW(32)
DENSITY                                                                    NUMBER
NUM_NULLS                                                                  NUMBER
NUM_BUCKETS                                                                NUMBER
LAST_ANALYZED                                                              DATE
SAMPLE_SIZE                                                                NUMBER
CHARACTER_SET_NAME                                                         VARCHAR2(44)
CHAR_COL_DECL_LENGTH                                                       NUMBER
GLOBAL_STATS                                                               VARCHAR2(3)
USER_STATS                                                                 VARCHAR2(3)
AVG_COL_LEN                                                                NUMBER
CHAR_LENGTH                                                                NUMBER
CHAR_USED                                                                  VARCHAR2(1)
V80_FMT_IMAGE                                                              VARCHAR2(3)
DATA_UPGRADED                                                              VARCHAR2(3)
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Oracle Dictionary: check what table belongs a column from a view

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