Converting Rows to Columns (PIVOT) and Columns to Rows (UNPIVOT) in SQL Server
Learn how to convert row values into column values (PIVOT) and column values into row values (UNPIVOT) in SQL Server.
Learn how to convert row values into column values (PIVOT) and column values into row values (UNPIVOT) in SQL Server.
Alex Kuznetsov, in an article taken from his book 'Defensive Database Programming with SQL Server', shows how DRY principles can be put in practice with constraints, stored procedures, triggers, UDFs and indexes.
There are challenges with the large scale archiving of data. Steve Jones talks about rethinking this as a daily process rather than a periodic one.
Aaron Bertrand has some advice on how to protect yourself from SQL Injection, looking at some specific common scenarios.
This metric shows Writelog wait time in ms, per elapsed second. Writelog wait types occur when the log cache is being flushed to disk. If this happens all the time, it may suggest disk bottlenecks where the transaction log is stored.
Part of our job as a data professional often deals with the movement and cleaning of data. However, should we be trying to reduce the work we do? Move the burden to the application? Steve Jones has a few comments.
One of the times that you need things to go right is when you are doing analysis and reporting. This is generally based on time and date. A sure-fire way of getting managers upset is to get the figures horribly wrong by messing up the way that you handle datetime values in SQL Server. In the interests of peace, harmony and a long career in BI, Robert Sheldon outlines some of the worst mistakes you can make when using SQL Server dates.
Chuck Hoffman exposes the mysteries of getting CASE statements to work in dynamic ORDER BY statements.
Microsoft released the preview version of Azure SQL Database V12 in December of 2014. As a database administrator, you might wonder about the schema and security of these new data marts. Microsoft has supplied system stored procedures for the database developer to query the Linked Servers for this type of meta data, as John Miner explains.
I previously wrote about how the underlying technology for Fabric mirroring changed with SQL...
By Steve Jones
At the recent Redgate Summit in Chicago, I demo’d (lightly) the ML based Alert...
By Steve Jones
los vidados – n. the half-remembered acquaintances you knew years ago, who you might...
Comments posted to this topic are about the item Seeding a Fabric Warehouse with...
Comments posted to this topic are about the item Seeding a Fabric Warehouse with...
Comments posted to this topic are about the item Doing the Little Things
If I want to track historical data values, which mechanism should I use?
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