SQL Server Filtered Index Essentials Guide
Learn about using filtered indexes for SQL Server tables and some of the potential issues you might be faced with when using a filtered index.
2024-05-08
Learn about using filtered indexes for SQL Server tables and some of the potential issues you might be faced with when using a filtered index.
2024-05-08
2024-01-17
446 reads
2024-01-10
504 reads
The ability to pause and then resume index rebuilds has been added to SQL Server. This is a fantastic feature, and with the release of SQL Server 2019, we can now replicate it on the actual create index process. Learn how to use this feature in this short article.
2023-06-26
5,702 reads
In this article, we look at how to design SQL Server indexes and why the way an index is created makes a difference in query performance.
2022-11-07
2022-01-26
514 reads
2021-08-09
532 reads
In the last year I’ve published articles on indexes to include Indexes: When Column Selectivity Is Not Always A Requirement – SQLServerCentral and Query Optimizer Suggests Wrong Index and Query Plan -- Why? – SQLServerCentral. This article is a continuation of just how the optimizer interacts with the index wizard. We’ve all heard and read […]
2021-07-07
3,118 reads
The script returns all the fragmented indexes on all databases on the instance you run it. Can be run on multiple instances in the same time using central management capability.
2021-07-12 (first published: 2021-07-06)
2,544 reads
Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]
2021-05-10
6,292 reads
By Steve Jones
I love Chicago. I went to visit three times in 2023: a Redgate event,...
By Brian Kelley
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Let’s consider the following script that can be executed without any error on both SQL Sever and PostgreSQL. We define the table t1 in which we insert three records:
create table t1 (id int primary key, city varchar(50)); insert into t1 values (1, 'Rome'), (2, 'New York'), (3, NULL);If we execute the following query, how will the records be sorted in both environments?
select city from t1 order by city;See possible answers