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 …

A clustered index alters the way that the rows are stored. When you create a clustered index on a column (or a number of columns), SQL server sorts the table’s rows by that column (s). It is like a …

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.

Dec 30, 2024 · See Online Index Operations. When the process is completed the table is locked for a brief period and the new index replaces the old index. If the index contains LOB columns, ONLINE …

Apr 28, 2015 · 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 …

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

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

Apr 28, 2017 · Here is a SQL query solution that works in SQL Server 2005 and up, that will let you 1) first find all the indexes that need to be rebuilt or reorganized to reduce fragmentation, and then 2) …