What are indexes? What is the difference between stered and nonclustered indexes
What are indexes? What is the difference between clustered and nonclustered indexes?
✍: Guest
Indexes in SQL Server are similar to the indexes in books. They help SQL Server retrieve
the data quickly.
There are clustered and nonclustered indexes. A clustered index is a special type of index
that reorders the way in which records in the table are physically stored. Therefore table
can have only one clustered index. The leaf nodes of a clustered index contain the data
pages.
A nonclustered index is a special type of index in which the logical order of the index
does not match the physical stored order of the rows on disk. The leaf node of a
nonclustered index does not consist of the data pages. Instead, the leaf nodes contain
index rows.
2007-10-25, 4716👍, 0💬
Related Topics:
What is Maximum Pool Size in ADO.NET Connection String
What is Maximum Pool Size in ADO.NET Connection String? 2007-10-24, 5492👍, 0💬
What is the use of OLAP
What is the use of OLAP ? OLAP is useful because it provides fast and interactive access to aggregated data and the ability to drill down to detail. 2007-10-25, 5458👍, 0💬