Create Database Snapshot Dynamically
Dynamic SQL can be used to generate a database snapshot. Useful for a database with a number of files.
2018-08-23 (first published: 2016-11-04)
3,452 reads
Dynamic SQL can be used to generate a database snapshot. Useful for a database with a number of files.
2018-08-23 (first published: 2016-11-04)
3,452 reads
Leveraging snapshots across multiple databases simultaneously to allow for quick rollback in case of a problem deploying code
2015-12-08
2,136 reads
2014-03-20
2,268 reads
2016-04-12 (first published: 2014-03-12)
2,367 reads
Not too long ago an ISV that developed solutions using SQL Server as the RDBMS, asked me how they could query a database as at a point in time. This was a relatively easy answer, thanks to the Database Snapshot feature. I was however surprised at the next question “Can we update the database snapshot?”
2011-12-21
2,509 reads
2009-07-27
3,121 reads
I wrote a stream-of-consciousness post a few months ago about what I do in...
By Steve Jones
I had to demo the Flyway Autopilot system recently and created a GitHub Actions...
This is more complicated than using the Azure Migration method, but because it’s maxed...
Comments posted to this topic are about the item The Rank Window
Comments posted to this topic are about the item The End of Azure Data...
Comments posted to this topic are about the item How to Develop Solutions with...
I have this table and data:
CREATE TABLE [dbo].[SalesTracking] ( [SalesDate] [datetime] NULL, [SalesPersonID] [int] NULL, [CustomerID] [int] NOT NULL, [PONumber] [varchar] (80) COLLATE SQL_Latin1_General_CP1_CI_AS NULL, [paid] [bit] NULL ) ON [PRIMARY] GO CREATE CLUSTERED INDEX [SalesTrackingCDX] ON [dbo].[SalesTracking] ([SalesDate]) ON [PRIMARY] GO INSERT dbo.SalesTracking (SalesDate, SalesPersonID, CustomerID, PONumber, paid, total) VALUES ('2024-03-15 10:45:55.067', 1, 1,'PO965' ,1, 100), ('2023-09-24 10:45:55.067', 1, 2,'PO627' ,1, 200), ('2022-07-02 10:45:55.067', 1, 3,'PO6' ,1, 300), ('2022-11-03 10:45:55.067', 1, 4,'PO283' ,1, 400), ('2022-11-26 10:45:55.067', 1, 5,'PO735' ,1, 500), ('2023-04-28 10:45:55.067', 1, 6,'PO407' ,1, 600), ('2022-09-09 10:45:55.067', 1, 7,'PO484' ,1, 700), ('2024-03-13 10:45:55.067', 1, 8,'PO344' ,1, 700), ('2024-04-24 10:45:55.067', 1, 9,'PO254' ,1, 800), ('2022-06-19 10:45:55.067', 1, 10,'PO344',1, 800) GOWhen I run this query, how many unique values are returned for the SaleRank column?
SELECT st.SalesDate , st.SalesPersonID , st.total , RANK () OVER (PARTITION BY st.SalesPersonID ORDER BY st.total desc) AS SaleRank FROM dbo.SalesTracking AS st;See possible answers