Updating xml in sql server 2016

13-Jul-2020 09:02

The exceptions are primarily those columns configured with large object (LOB) data types, such as image, text, and varchar(max).

It often turns out that the programmer understands detail, but not the broad picture of what indexes do.

An important characteristic of the clustered index is that the indexed values are sorted in either ascending or descending order.

As a result, there can be only one clustered index on a table or view.

A clustered index stores the actual data rows at the leaf level of the index.

Returning to the example above, that would mean that the entire row of data associated with the primary key value of 123 would be stored in that leaf node.

It often turns out that the programmer understands detail, but not the broad picture of what indexes do.

An important characteristic of the clustered index is that the indexed values are sorted in either ascending or descending order.

As a result, there can be only one clustered index on a table or view.

A clustered index stores the actual data rows at the leaf level of the index.

Returning to the example above, that would mean that the entire row of data associated with the primary key value of 123 would be stored in that leaf node.

The query engine continues down through the index nodes until it reaches the leaf node.