Sometimes, we need to find the first or last n% records from a dataset based on a particular column. For instance, a teacher wants to know which students are in the bottom 25% based on marks. Hence, in such situations, the SQL NTILE() function helps. We will leverage this tip to get first or last n% records using NTILE() in SQL Server.
2023-08-04
I have come across a lot of use cases for manufacturing rows on the fly, aside from the common goal of populating a large data set such as a numbers or calendar table. A few favorites include building sample data, pivoting an unknown number of columns, data extrapolation, and filling gaps in date or time ranges.
2023-07-26
In this article, learn how to query cached query statistics and execution plans for Oracle or SQL Server to identify code that can be optimized to improve performance.
2023-07-21
In this article, we look at a sample use case of how you can create SQLCMD batch files that can be interactive and reused in different SQL Server environments.
2023-07-14
My SQL Server backups and restores fail infrequently, but when I find out it is too late. How can I find out sooner?
2023-07-03
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
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It seems like every DBA has a USB stick or a shared drive filled with scripts they can pull up in almost any situation. How can I build such a library of T-SQL files?
2023-06-26
Deadlocks can occur in any database system, and SQL Server is no exception. In this article, we look at the steps I used to detect and resolve deadlocks in stored procedures.
2023-06-23
SQL Server supports working with JSON data and provides many different functions that can be used. SQL Server 2022 has expanded the ability to check if the JSON format is valid using the ISJSON function which we will cover in this article.
2023-06-19
SQL Server Auditing utilizes Extended Events in SQL Server. Although it is a feature-rich native solution available in all editions, you'll realize that when you start configuring the Audit and Specifications the filter options are not that widely documented or intuitive.
2023-06-05
By James Serra
There are three Azure SQL products with so many different deployment options, service tiers,...
By Steve Jones
I hosted this month’s T-SQL Tuesday party with my invitation asking about tracking permissions....
By Steve Jones
I was asked to do some a little thinking and brainstorming recently. Rather than...
Hi, Does anyone have experience with MEMORYBROKER_FOR_RESERVE ? when suddenly there is somehow constantly...
I just learned that my database was created on my C:\ drive in the...
I am needing to migrate a MSSQL db to MySQL, on a different server...
I have a complex database with a few filegroups and files. Can I run a backup command like this? (assume file/filegroup names are valid).
BACKUP DATABASE [complex]
FILE = N'thirdone'
, FILE = N'thirdtwo'
, FILEGROUP = N'second'
TO DISK = N'C:\Program Files\Microsoft SQL Server\MSSQL16.SQL2022\MSSQL\Backup\complex.bak'
WITH NOFORMAT, NOINIT, NAME = N'complex-Full Database Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10
GO
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