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redundantindex.sql
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79 lines (79 loc) · 3.47 KB
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PROMPT
PROMPT
PROMPT~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
PROMPT------ /) (\
PROMPT------ .-._((,~~.))_.-,
PROMPT------ `-. @@ ,-'
PROMPT------ / ,o--o. \
PROMPT------ ( ( .__. ) )
PROMPT------ ) `----' (
PROMPT------ / \
PROMPT------ / \
PROMPT------ / \
PROMPT------ "The Silly Cow"
PROMPT----- Script: redundantindex.sql
PROMPT----- Author: Prashant 'The FatDBA'
PROMPT----- Cat: Performance Management and Issue Identification
PROMPT----- Version: V1.1 (Date: 11-08-2018)
PROMPT-----
PROMPT-----
PROMPT-----
PROMPT~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~WITH
indexed_columns AS (
SELECT
col.index_owner,
col.index_name,
col.table_owner,
col.table_name,
idx.index_type,
idx.uniqueness,
MAX(CASE col.column_position WHEN 01 THEN col.column_name END)||
MAX(CASE col.column_position WHEN 02 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 03 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 04 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 05 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 06 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 07 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 08 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 09 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 10 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 11 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 12 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 13 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 14 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 15 THEN ':'||col.column_name END)||
MAX(CASE col.column_position WHEN 16 THEN ':'||col.column_name END)
indexed_columns
FROM dba_ind_columns col,
dba_indexes idx
WHERE col.table_owner NOT IN ('ANONYMOUS','APEX_030200','APEX_040000','APEX_SSO','APPQOSSYS','CTXSYS','DBSNMP','DIP','EXFSYS','FLOWS_FILES','MDSYS','OLAPSYS','ORACLE_OCM','ORDDATA','ORDPLUGINS','ORDSYS','OUTLN','OWBSYS')
AND col.table_owner NOT IN ('SI_INFORMTN_SCHEMA','SQLTXADMIN','SQLTXPLAIN','SYS','SYSMAN','SYSTEM','TRCANLZR','WMSYS','XDB','XS$NULL','PERFSTAT','STDBYPERF','MGDSYS','OJVMSYS')
AND idx.owner = col.index_owner
AND idx.index_name = col.index_name
GROUP BY
col.index_owner,
col.index_name,
col.table_owner,
col.table_name,
idx.index_type,
idx.uniqueness
)
SELECT
r.table_owner,
r.table_name,
r.index_type,
r.index_name||' ('||r.indexed_columns||')' redundant_index,
i.index_name||' ('||i.indexed_columns||')' superset_index
FROM indexed_columns r,
indexed_columns i
WHERE i.table_owner = r.table_owner
AND i.table_name = r.table_name
AND i.index_type = r.index_type
AND i.index_name != r.index_name
AND i.indexed_columns LIKE r.indexed_columns||':%'
AND r.uniqueness = 'NONUNIQUE'
ORDER BY
r.table_owner,
r.table_name,
r.index_name,
i.index_name;