what is difference between cluster index and non cluster index ?

hi guys and gals …

what is difference between cluster index and non cluster index ? plz give details with example ?

Hi,

The difference is that, Clustered index is unique for any given table and we can have only one clustered index on a table. The leaf level of a clustered index is the actual data and the data is resorted in case of clustered index.

Whereas in case of non-clustered index the leaf level is actually a pointer to the data in rows so we can have as many non-clustered indexes as we can on the db.