Jun 2, 2010 · An index is used to speed up the performance of queries. It does this by reducing the number of database data pages that have to be visited/scanned. In SQL Server, a …

Jul 6, 2011 · 140 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 …

Given that indexing is so important as your data set increases in size, can someone explain how indexing works at a database-agnostic level? For information on queries to index a field, check …

In SQL Server, the primary key constraint automatically creates a clustered index on that particular column. Non-Clustered Index - A non-clustered index doesn’t sort the physical data …

Given an email address column, I need to find the position of the @ sign for substringing. What is the indexof function, for strings in T-SQL? Looking for something that returns the position of a

Mar 23, 2018 · Both types of index will improve performance when select data with fields that use the index but will slow down update and insert operations. Because of the slower insert and …

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

Jul 28, 2017 · Looking to create a SQL query that rebuilds indexes in SQL on only one table within my database. Can anyone point me in the right direction. Someone earlier suggested …

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 …

Mar 6, 2011 · 12 You could use this query to get the no of indexes as well as the index names of each table in specified database.