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 clustered index …

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 or it will …

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 out ...

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 inside the table.

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 update …

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 Ola Hallengren …

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 sys.schemas s on …

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.