alter index rebuild oracle code example

Example: rebuild index oracle

-- Indexes:
SELECT 'alter index ' || OWNER || '.' || INDEX_NAME || ' rebuild tablespace ' 
	|| TABLESPACE_NAME || ';' SQL_TO_REBUILD_INDEX
FROM DBA_INDEXES
WHERE STATUS = 'UNUSABLE';			-- For unusable indexes

-- Indexes partitions:
SELECT 'alter index ' || INDEX_OWNER || '.' || INDEX_NAME 
	|| ' rebuild partition ' || PARTITION_NAME || ' TABLESPACE ' 
    || TABLESPACE_NAME || ';' SQL_TO_REBUILD_INDEX
FROM DBA_IND_PARTITIONS
WHERE STATUS = 'UNUSABLE';

-- Indexes subpartitions:
SELECT 'alter index ' || INDEX_OWNER || '.' || INDEX_NAME 
	|| ' rebuild subpartition ' || SUBPARTITION_NAME || ' TABLESPACE ' 
    || TABLESPACE_NAME || ';' SQL_TO_REBUILD_INDEX
FROM DBA_IND_SUBPARTITIONS
WHERE STATUS = 'UNUSABLE';