Oracle ASM: Migrating from UDEV devices to the ASM Filter Driver
This article looks at the way in which you can convert unmanaged devices to the ASM filter drive in an Oracle system.
2022-03-04
3,582 reads
This article looks at the way in which you can convert unmanaged devices to the ASM filter drive in an Oracle system.
2022-03-04
3,582 reads
It’s important to choose the right datatypes when designing a database. Greg Larsen explains the differences between CHAR, VARCHAR and VARCHAR(MAX).
2022-02-14
Vertipaq optimization is a critical component of the columnstore compression process. Edward Pollack explains how it works and what you need to know to manage it.
2022-02-11
To troubleshoot poorly performing SQL in Oracle, you must understand which transformations the optimizer has made. Jonathan Lewis demonstrates several possible optimizations for one query.
2022-02-09
You can do essential monitoring of SQL Server instances and databases with a FREE toolkit!
2022-01-28
6,236 reads
Predicates in SQL are often complex and difficult to understand. In this article, Joe Celko explains the logic behind a few of the predicates: EXISTS, SOME, ANY and ALL.
2022-01-14
Ransomware has threatened many organizations over the past few years. In this article, Robert Sheldon explains the history of ransomware and what needs to be done to protect against it.
2021-11-22
How to get the most out of SQL Search, a free database search tool for SQL Server Management Studio (SSMS) and Visual Studio that will locate database objects based on their names, columns, or text.
2021-11-19
Tableau is a popular visualization tool used by organizations around the world. In this article Sanil Mhatre demonstrates sentiment analysis with Tableau and Oracle data.
2021-11-08
It’s not difficult to set up an extended event session, but reviewing and saving the data can be complex. In this article, Edward Pollack demonstrates how to collect extended event data.
2021-11-03
Want to build a data analytics foundation that transforms raw data into valuable business...
By Steve Jones
Recently a customer asked if SQL Compare and SQL Data Compare can be used...
By Tim Mitchell
Earlier this month, I hosted the monthly T-SQL Tuesday invitation in which I asked,...
Comments posted to this topic are about the item Concatenating Multiple Row Values into...
Hi there, I've tried CROSS APPLY, PATINDEX and many other functions, but can't nail...
What is the best way to continually loop a SQL Server Agent Job? I...
I have some simple sales data in a SQL Server 2022 database that looks like this:
TransactionDate SalesAmount 2023-01-15 1200.00 2023-02-22 1500.50 2023-03-10 900.75If I run this query, what are the sales growth amounts returned?
SELECT ms.TransactionDate , ms.SalesAmount , ms.SalesAmount - LAG (ms.SalesAmount, 1) OVER (ORDER BY ms.TransactionDate) AS SalesGrowth FROM dbo.MonthlySales AS ms;See possible answers