Generate index on foreign key columns
Script find all foreign key without index in database and create new one for them.
2012-03-29 (first published: 2008-01-25)
3,401 reads
Indexing
SQL Server clustered index design for performance
Find why SQL Server clustered index design should be narrow and static and how clustered indexes affect many-to-many tables to improve database performance.
2008-01-16
3,939 reads
SQL Server Indexes: The Basics
Indexes directly affect the performance of database applications. This article uses analogies to describe how indexes work. The estimated execution plan feature of the Query Window is utilized to compare the performance of two queries in a batch.
2007-12-04
5,686 reads
2007-12-21 (first published: 2007-10-25)
1,425 reads
Prioritize Missing Index Recommendations 2 (2005)
This is an enhanced version of my previous script: Prioritize Missing Index Recommendations (2005).To aid in evaluation of whether the recommended index is reasonable, I have added :1. counts for key columns and the total columns of the recommended index 2. the length/bytes for both key and all columns Note this is 'per row', not […]
2007-08-17
1,858 reads
Prioritize Missing Index Recommendations (2005)
To report indexes proposed by the database engine that have highest probable user impact. Note that no consideration is given to 'reasonableness' of indexes-- bytes, overall size, total number of indexes on a table, etc. Intended to provide targeted starting point for holistic evaluation of indexes.
2007-08-17
993 reads
Find Unindexed Foreign Keys (2005)
This script will find foreign keys (on referencing table) that are not indexed in SQL Server 2005.
2011-12-20 (first published: 2007-08-10)
3,764 reads
2005 Clean Indexes For All Databases on a Server
Check Indexes on all databases and rebuild/reindex based on fragmentation
2008-02-01 (first published: 2007-04-05)
1,467 reads
2007-04-30 (first published: 2007-04-03)
1,691 reads
SQL Server 2005: Script all Primary Keys
Since it is not possible to script only the primary keys of all tables with the SQL Server 2005 Management Studio, here a small script to get the create scripts for all existing primary keys of the current database.
2007-03-28 (first published: 2007-03-09)
4,305 reads
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Question of the Day
BIT_COUNT II
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37 4 NULLWhat is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 4;See possible answers