Jun 2, 2010 · These two videos (Clustered vs. Nonclustered Index Structures in SQL Server and Database Design 39 - Indexes (Clustered, Nonclustered, Composite Index) ) are very helpful …

Apr 22, 2010 · Something like this: SELECT * FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE CONSTRAINT_NAME …

CREATE INDEX idx1 ON MyTable (Col1) INCLUDE (Col2, Col3) The INCLUDE clause is new to me. Why would you use it and what guidelines would you suggest in determining whether to …

Indexes in SQL Server 2005/2008 – Best Practices, Part 1 Indexes in SQL Server 2005/2008 – Part 2 – Internals One thing to note, clustered indexes should have a unique key (an identity …

May 20, 2010 · There can be only one Primary Key defined on the table where as you can have many unique indexes defined on the table (if needed). Also, in the case of SQL Server, if you …

Apr 20, 2009 · How do I get a list of all index & index columns in SQL Server 2005+? The closest I could get is: select s.name, t.name, i.name, c.name from sys.tables t inner join …

Jul 6, 2011 · Lets say in the employee table, I have created an index(idx_name) on the emp_name column of the table. Do I need to explicitly specify the index name in select clause …

Can anyone provide the script for rebuilding and re-indexing the fragmented index when 'avg_fragmentation_in_percent' exceeds certain limits (better if cursor is not used)?

Mar 6, 2011 · SHOW INDEXES FROM database_name.table_name; Note that INDEX and KEYS are the synonyms of the INDEXES, IN is the synonym of the FROM, therefore, you can use …

Correct. Indexes can be composites - composed of multiple columns - and the order is important because of the leftmost principle. Reason is, that the database checks the list from left to right, …