CREATE TABLE Product ( Product Id int IDENTITY(1,1) NOT NULL, Product Name nvarchar(100) NOT NULL, Product Line nchar(2) NULL, Created DT datetime, CONSTRAINT PK_Product PRIMARY KEY CLUSTERED ( Product Id ASC ) ) ON [PRIMARY]; GO INSERT INTO Product (Product Name, Product Line, Created DT) VALUES ('Product 1', 'L1', DATEADD(year, -1, GETDATE())), (' Product 1 ', 'L1', DATEADD(year, -2, GETDATE())), ('Product 2', 'L1', DATEADD(year, -3, GETDATE())), (' Product 2 ', 'L1', DATEADD(year, -4, GETDATE())), ('Product 3', 'L2', DATEADD(year, -5, GETDATE())), (' Product 3 ', 'L2', DATEADD(year, -6, GETDATE())), ('Product 4', 'L2', DATEADD(year, -7, GETDATE())), (' Product 4 ', 'L3', DATEADD(year, -8, GETDATE())), ('Product 5', 'L4', DATEADD(year, -9, GETDATE())), (' Product 5 ', NULL, DATEADD(year, -10, GETDATE())); GO 1000 CREATE NONCLUSTERED INDEX IX_Product_Product Name ON dbo.Product ( Product Name ASC ) INCLUDE (Product Id) ON [PRIMARY]; CREATE NONCLUSTERED INDEX IX_Product_Created DT ON dbo.Product ( Created DT ASC ) INCLUDE (Product Id, Product Name) ON [PRIMARY]; CREATE NONCLUSTERED INDEX IX_Product_Product Line ON dbo.
During the course of days I’ve come across cases from where I learnt about these numbers & their purpose; certainly do let me know for any corrections that I may have missed out.
Here is a list of trace flags for SQL Server that you can use to configure your server instance.
And if the query returned a smaller subset of records, then the performance improvement would be even greater.
If we now query on a specific Created DT datetime – But the DATEADD and DATEDIFF functions are not sargable so the query optimizer is unable to perform a seek on the IX_Product_Created DT non-clustered index.
Build number: 14.0.61712.050 Analysis Services (AS) projects Build number: 14.0.16134.0 This release provides a standalone web installer for SQL Server Database, Analysis Services, Reporting Services, and Integration Services projects in Visual Studio 2017 15.4 or later. For more information, please read the Analysis Services blog post.
Build number: 14.0.16121.0 This preview is the first version of SSDT for Visual Studio 2017. Database Tools Released: September 20, 2016 Build number: 14.0.60918 What's New?
IS NULL as shown below – The optimizer now chooses an optimal seek on the index.
Sargable functions in SQL Server are few and far between.
This is a timesaver for anyone who likes to keep a report of what was published during a deployment. Deployment Report); // Call script and receive deployment script & report in results result = service. Analysis Services – Integrated Workspace Mode for SSDT Tabular (SSAS) SSDT Tabular now includes an internal SSAS instance, which SSDT Tabular starts automatically in the background if integrated workspace mode is enabled so that you can add and view tables, columns, and data in the model designer without having to provide an external workspace server instance.
Another benefit is that for Azure scenarios, separate scripts for the master database and the deploy target database are created. Integrated workspace mode does not change how SSDT Tabular works with a workspace server and database.
This release introduces a standalone web installation experience for SQL Server Database, Analysis Services, Reporting Services, and Integration Services projects in Visual Studio 2017 15.3 or later. Schema Compare is now supported in Sql and the Data-Tier Application Framework (Dac Fx) API.