ISSUE:
SQL> select name,height,lf_rows,del_lf_rows,(del_lf_rows/lf_rows)*100 as ratio from index_stats where name like 'FND_LOG_MESSAGES_N8';
NAME HEIGHT LF_ROWS DEL_LF_ROWS RATIO
------------------------------ ---------- ---------- ----------- ----------
FND_LOG_MESSAGES_N8 3 7729513 6882517 89.0420522
SQL> alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild online;
alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild online
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01450: maximum key length (3215) exceeded
SOLUTION:
SQL> alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild;
Index altered.
SQL> select name,height,lf_rows,del_lf_rows,(del_lf_rows/lf_rows)*100 as ratio from index_stats where name like 'FND_LOG_MESSAGES_N8';
NAME HEIGHT LF_ROWS DEL_LF_ROWS RATIO
------------------------------ ---------- ---------- ----------- ----------
FND_LOG_MESSAGES_N8 3 847078 0 0
ANALYSIS:
The online rebuild of the index creates a journal table and index. This internal journal IOT table contains more columns in its index. This is a feature of online rebuild. This time the error arises because that current value of the initialization parameter db_block_size is not large enough to create internal journal IOT.
SQL> select name,height,lf_rows,del_lf_rows,(del_lf_rows/lf_rows)*100 as ratio from index_stats where name like 'FND_LOG_MESSAGES_N8';
NAME HEIGHT LF_ROWS DEL_LF_ROWS RATIO
------------------------------ ---------- ---------- ----------- ----------
FND_LOG_MESSAGES_N8 3 7729513 6882517 89.0420522
SQL> alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild online;
alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild online
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01450: maximum key length (3215) exceeded
SOLUTION:
SQL> alter index APPLSYS.FND_LOG_MESSAGES_N8 rebuild;
Index altered.
SQL> select name,height,lf_rows,del_lf_rows,(del_lf_rows/lf_rows)*100 as ratio from index_stats where name like 'FND_LOG_MESSAGES_N8';
NAME HEIGHT LF_ROWS DEL_LF_ROWS RATIO
------------------------------ ---------- ---------- ----------- ----------
FND_LOG_MESSAGES_N8 3 847078 0 0
ANALYSIS:
The online rebuild of the index creates a journal table and index. This internal journal IOT table contains more columns in its index. This is a feature of online rebuild. This time the error arises because that current value of the initialization parameter db_block_size is not large enough to create internal journal IOT.