Performance Testing Script
Fourth in a series of scripts demonstrating a quantitative comparison between the text of two stored procedures
2013-10-31 (first published: 2009-02-17)
10,591 reads
Fourth in a series of scripts demonstrating a quantitative comparison between the text of two stored procedures
2013-10-31 (first published: 2009-02-17)
10,591 reads
This script pivots 1 to N numeric columns, grouping by 1 to N (N)(Var)char columns, pivoting by distinct date.
2013-10-30 (first published: 2013-10-15)
1,107 reads
This will sum all of the records of a specified database, excluding the 'sysdiagrams' table.
2013-10-23 (first published: 2007-12-17)
19,861 reads
2013-10-22 (first published: 2007-10-10)
30,322 reads
I have used the following function to convert dates according to desired textual formats that were not immediately available in the standard styles on offer.
2013-10-18 (first published: 2013-10-01)
2,023 reads
This script selects clustered indexes containing only a uniqueidentifier column
2013-10-17 (first published: 2013-10-02)
1,231 reads
This script finds the size of all indexes in a database along with the table and the filegroup on which the index resides.
2013-10-15 (first published: 2013-09-23)
1,882 reads
Top 5 expensive Queries from a Write IO perspective
2013-10-03 (first published: 2013-09-09)
2,374 reads
Lists details for all indexes on one or more tables / schemas, including row count and size. The non-pivot version also gives data type and other details for the columns.
2013-10-02 (first published: 2008-08-01)
3,718 reads
The below written query helps us find the most expensive queries from a read IO perspective. The DMV that we have used in this script is sys.dm_exec_query_stats and the function that we have used is sys.dm_exec_sql_text.
2013-09-27 (first published: 2013-09-09)
2,639 reads
By Steve Jones
I recently started playing with the MCP Server for SQL Server, which is a...
If you spend your days tuning queries, managing pipelines, or keeping a production database...
I’ve been rebuilding my three-site SQL Server demo lab, and I ran into something...
Has anyone written a wrapper function (or similar) around STRING_AGG() to allow the retrieval...
Putting this here as we're currently on SQL Server 2019 installed on Windows Server...
Comments posted to this topic are about the item Never is Not the Policy
I have added a few indexes to one of my tables in SQL Server 2025:
ALTER TABLE dbo.CustomerContact
ADD CONSTRAINT PK_CustomerContact
PRIMARY KEY (CustomerID);
-- Create index on CustomerEmail
CREATE INDEX IX_CustomerContact_CustomerEmail
ON dbo.CustomerContact (CustomerEmail);
CREATE INDEX IX_CustomerContact_CustomerPhone
ON dbo.CustomerContact (phone);
I then do this to disable one index:
alter index IX_CustomerContact_CustomerPhone on dbo.CustomerContact disableI see this when I check the index status:
I decide to rebuild all indexes with this command:
ALTER INDEX ALL ON dbo.CustomerContact rebuildAfter I do this, what will I see for the index status? See possible answers