AND Condition Ignored

Question

I have the query below but is seems that the AND A.UNIQUENESS = 'UNIQUE' condition is ignored. Can someone explain why? Or have I incorrectly coded this?
It's 9i.
SELECT B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER, B.COLUMN_NAME
FROM DBA_INDEXES A INNER JOIN DBA_IND_COLUMNS B ON A.OWNER = B.TABLE_OWNER
WHERE A.OWNER = 'USERDATA'
AND A.UNIQUENESS = 'UNIQUE'
GROUP BY B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER, B.COLUMN_NAME
ORDER BY 1

Answer 1

I have the query below but is seems that the AND
A.UNIQUENESS = 'UNIQUE' condition is ignored. Can
someone explain why? Or have I incorrectly coded
this?
It's 9i.
SELECT B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER,
B.COLUMN_NAME
FROM DBA_INDEXES A INNER JOIN DBA_IND_COLUMNS B ON
A.OWNER = B.TABLE_OWNER
WHERE A.OWNER = 'USERDATA'
AND A.UNIQUENESS = 'UNIQUE'
GROUP BY B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER,
B.COLUMN_NAME
ORDER BY 1Are you giving correct username ??
SQL> SELECT B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER, B.COLUMN_NAME
  2  FROM DBA_INDEXES A INNER JOIN DBA_IND_COLUMNS B ON A.OWNER = B.TABLE_OWNER
  3  WHERE A.OWNER = 'SCOTT'
  4  AND A.UNIQUENESS = 'UNIQUE'
  5  GROUP BY B.TABLE_NAME, B.TABLE_OWNER, B.INDEX_OWNER, B.COLUMN_NAME
  6  ORDER BY 1;
TABLE_NAME                     TABLE_OWNER                    INDEX_OWNER
COLUMN_NAME
DEPT                           SCOTT                          SCOTT
DEPTNOKhurram