Enabling Disabled Index

Question

Hi, while loading data through SQL*loader using DIRECT path, the index on the table gets disabled if the data was bad. I am deleting the bad data from the table. Now I want to get the disabled indexes on that table and re-enable them. how to do this?

Answer 1

Hmm...
satyaki>
satyaki>select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE    10.2.0.1.0      Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
Elapsed: 00:00:00.02
satyaki>
satyaki>create table ttest
  2      (
  3        a_no number(4) not null,
  4        constraints ck_ano primary key(a_no)
  5      );
Table created.
Elapsed: 00:00:00.02
satyaki>
satyaki>
satyaki>select index_name
  2     from user_indexes
  3     where table_name = upper('ttest');
INDEX_NAME
CK_ANO
Elapsed: 00:00:00.00
satyaki>
satyaki>
satyaki>alter index ck_ano unusable;
Index altered.
Elapsed: 00:00:00.01
satyaki>
satyaki>
satyaki>select status, index_name
  2     from user_indexes
  3     where table_name = upper('ttest');
STATUS   INDEX_NAME
UNUSABLE CK_ANO
Elapsed: 00:00:00.00
satyaki>
satyaki>
satyaki>alter index CK_ANO rebuild;
Index altered.
Elapsed: 00:00:00.01
satyaki>
satyaki>
satyaki>select status, index_name
  2  from user_indexes
  3  where table_name = upper('ttest');
STATUS   INDEX_NAME
VALID    CK_ANO
Elapsed: 00:00:00.00
satyaki>
satyaki>Regards.
Satyaki De.