Oracle 查询重复索引列

SELECT /*+ rule */
a .table_owner,
a.table_name,
a.index_owner,
a.index_name,
column_name_list,
column_name_list_dup,
dup duplicate_indexes,
i.uniqueness,
i.partitioned,
i.leaf_blocks,
i.distinct_keys,
i.num_rows,
i.clustering_factor
FROM (SELECT table_owner,
table_name,
index_owner,
index_name,
column_name_list_dup,
dup,
MAX(dup) OVER(PARTITION BY table_owner, table_name, index_name) dup_mx
FROM (SELECT table_owner,
table_name,
index_owner,
index_name,
SUBSTR(SYS_CONNECT_BY_PATH(column_name, ','), 2) column_name_list_dup,
dup
FROM (SELECT index_owner,
index_name,
table_owner,
table_name,
column_name,
COUNT(1) OVER(PARTITION BY index_owner, index_name) cnt,
ROW_NUMBER() OVER(PARTITION BY index_owner, index_name ORDER BY column_position) AS seq,
COUNT(1) OVER(PARTITION BY table_owner, table_name, column_name, column_position) AS dup
FROM sys.dba_ind_columns
WHERE (index_owner LIKE 'E%' OR
index_owner LIKE 'TRIAL%' OR
index_owner = 'TEST')
AND index_owner NOT IN ('EXFSYS'))
WHERE dup != 1
START WITH seq = 1
CONNECT BY PRIOR seq + 1 = seq
AND PRIOR index_owner = index_owner
AND PRIOR index_name = index_name)) a,
(SELECT table_owner,
table_name,
index_owner,
index_name,
SUBSTR(SYS_CONNECT_BY_PATH(column_name, ','), 2) column_name_list
FROM (SELECT index_owner,
index_name,
table_owner,
table_name,
column_name,
COUNT(1) OVER(PARTITION BY index_owner, index_name) cnt,
ROW_NUMBER() OVER(PARTITION BY index_owner, index_name ORDER BY column_position) AS seq
FROM sys.dba_ind_columns
WHERE (index_owner LIKE 'E%' OR index_owner LIKE 'TRIAL%' OR
index_owner = 'TEST')
AND index_owner NOT IN ('EXFSYS'))
WHERE seq = cnt
START WITH seq = 1
CONNECT BY PRIOR seq + 1 = seq
AND PRIOR index_owner = index_owner
AND PRIOR index_name = index_name) b,
dba_indexes i
WHERE a.dup = a.dup_mx
AND a.index_owner = b.index_owner
AND a.index_name = b.index_name
AND a.index_owner = i.owner
AND a.index_name = i.index_name
ORDER BY a.table_owner, a.table_name, column_name_list_dup;