How Are Indexes Ordered
The Ordering of a Two-Column Index Is Therefore Like the Ordering of a Telephone Directory: It Is First Sorted by Surname, Then by First Name. That Means That...
The ordering of a two-column index is therefore like the ordering of a telephone directory: it is first sorted by surname, then by first name. That means that a two-column index does not support searching on the second column alone; that would be like searching a telephone directory by first name.
How do I rebuild all indexes on a table?
If you want to rebuild all the indexes on any particular table quickly, you can just do that with the help of SSMS. Just go to the table, further expand the indexing folder and right after that you can right-click on it and select the option to rebuild all the indexes.
Does the order of an index matter?
Does the order of Columns in a Composite Index matters? … The order of the columns in a composite index does matter on how a query against a table will use it or not. A query will use a composite index only if the where clause of the query has at least the leading/left most columns of the index in it.