Need query to find out whether exactly 2 columns are used in any index ?

Question

Suppose i have two columns ID and Status (or any number of columns ) belongs to table customer...
Now I want to create below index
Ex. create index test1 on customer (ID , Status )
But before creating this index i want to check that whether there is already index on these 2 columns ? May be by other name ?
Need query for this.
Plz help.

Answer 1

Hi Shubhangi,
Your requirement is very difficult to fulfill , i have made an attempt to replicate your reqrmnt & write a query wherein you need to compromise on few things , let us see if it works for you
Supply table_name/owner & Number of column on which you want to find indexes
e.g.
select distinct INDEX_NAME,column_name
from dba_ind_columns
where index_name in (select distinct index_name
from dba_ind_columns
where table_name='&table_name'
and table_owner='&owner'
having count(column_name)=&column_count group by index_name);
Enter value for table_name: ADDRESS
Enter value for owner: ASAP
Enter value for column_count: 2
INDEX_NAME COLUMN_NAME
FKIDX_AD__SF_ST_FO SF_STRUC_FORMAT_NM
FKIDX_AD__SF_ST_FO SF_TYPE_NM
SQL> /
Enter value for table_name: ADDRESS
Enter value for owner: ASAP
Enter value for column_count: 3
INDEX_NAME COLUMN_NAME
FKIDX_AD__SF_ST_FO_1 POSTAL_CD
FKIDX_AD__SF_ST_FO_1 SF_STRUC_FORMAT_NM
FKIDX_AD__SF_ST_FO_1 SF_TYPE_NM
Thanks,
Ajay More
http://moreajays.blogspot.com