October 2006
Intermediate to advanced
464 pages
16h 11m
English
Content preview from Inside Microsoft® SQL Server™ 2005, Fourth EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Creating an Index
The basic syntax for creating an index is straightforward:
CREATE [UNIQUE] [CLUSTERED | NONCLUSTERED] INDEX index_name ON table_name (column_name [ASC | DESC][,...n])
When you create an index, you must specify a name for it. You must also specify the table on which the index will be built and one or more columns. For each column, you can specify that the leaf level store the key values sorted in either ascending (ASC) or descending (DESC) order. The default is ascending. You can specify that SQL Server must enforce uniqueness of the key values by using the keyword UNIQUE. If you don’t specify UNIQUE, duplicate key values will be allowed. You can specify that the index be either clustered or nonclustered. Nonclustered is the default. ...
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