A Common Table Expression (CTE) in SQL Server, defined using the WITH clause, is a temporary result set that simplifies complex queries by improving readability and maintainability. CTEs support recursive queries, enabling efficient handling of hierarchi
Virtual log file growth In previous versions of SQL Server, if the next growth is more than 1/8 of the current log size, and the growth is less than 64 MB, four VLFs were created. In SQL Server 2022 (16.x), this behavior is slightly different. Only one VLF is created if the grow...
Using a Common Table Expression also makes it easier to handle a scenario from a scalar subselect. A scalar subselect is a subquery that returns a single value for each row in the main query. For example, we want to categorize students based on their age at the time of enrollment. Whereas...
single column. Each value in the column represents a reusable calculation, or calculation item, that can be applied to any of the measures. A calculation group can have any number of calculation items. Each calculation item is defined by a DAX expression. To learn more, seeCalculation groups....
I’ll explain this by using examples in DDL, using SQL Server syntax. The short version of this is fairly simple. Every table that you want to use in relations should have a primary key constraint; this can either be a single field or a combination of fields defined by an expression. ...
November 2024 Mirroring for Azure SQL Database GA With Azure SQL Database mirroring in Fabric, you can easily replicate data from Azure SQL Database into OneLake in Microsoft Fabric. November 2024 Real-Time hub Real-Time hub is now generally available. For more information, see Introduction to...
What is SQL, in the SQL Server, is a common question asked. This article is meant to answer that question, while providing some history and context.
The sql in the annotation supports reading from the configuration The configured json is as follows:{ "mysqlSql": { "QueryListSql":"select * from customer", "QueryByPageSql":"select * from customer order by age", "UpdateByNameSql":"update customer set age=@age where name=@name", "...
We find great pleasure in announcing RC1 of SQL Server 2019 Analysis Services (SSAS 2019). The SSAS 2019 release is now feature complete! We may still make performance improvements for the RTM release. RC1 introduces the following features: ...
Support for window functions (a.k.a. analytic functions) is a frequent user request. Window functions have long been part of standard SQL (SQL 2003). See blog post by Dag Wanvik here as well as blog post by Guilhem Bichot here. Common Table Expression MySQL 8.0 delivers [Recursive] Com...