One of the most obvious bottlenecks in the performance of tempdb is caused by PAGELATCH, in-memory latch contention on the allocation bitmap of each data file used. We can use one of the rules-of-thumb to choose what should be roughly the best number of files, but how then do you check to see whether you've got it right for your data and workload?
2012-08-07
2,869 reads
I've been charged with coming up with a quick solution to audit login changes on my SQL Servers. However, there's no budget so I'm going to have to come up with basic scripts and the like to do the work. Is this tip we cover a solution for you to audit login changes.
2012-08-06
2,872 reads
Use the power of regular expressions to cleanse your data right there inside the Data Flow. This transformation includes a full user interface for simple configuration, as well as advanced features such as error output configuration. Two regular expressions are used, a match expression and a replace expression. The transformation is designed around the named capture groups or match groups, and even supports multiple expressions.
2012-08-03
3,279 reads
Recently I was supporting a third party application. It queries to determine what tables it has permissions to before it proceeds with the rest of its functionality. We had implemented permissions based on the best practice of creating roles, assigning the permissions to the roles, and then making the users members of the roles. The application was querying INFORMATION_SCHEMA.TABLE_PRIVILEGES and of course didn't find any permissions directly against the user in question. We ended up granting explicit permissions to the user so the application would work, but I'm more interested in the general case. How can I determine permissions for an individual user?
2012-08-02
3,152 reads
Sometimes, you can tire of writing the same PowerShell code once again. After this happened to Phil whilst keying in an SMO pipeline to access databases, it occurred to him that he should have only one pipeline to access databases in PowerShell, one reusable pipeline
2012-08-01
2,411 reads
Continuous integration, or CI, brings developers closer to delivering error-free software flawlessly. Find out how to implement it.
2012-07-31
2,538 reads
Service Broker is a technology built into SQL Server and utilized by the engine for its internal asynchronous processing. The great thing about Service Broker is that its functionality is exposed so we can build our own custom data integrations. Deanna Dicken introduces you to the concepts needed to create a service broker integration.
2012-07-30
3,492 reads
This component needs little explanation. It generates random integer (DT_I4) and string (DT_WSTR) data and places them in the pipeline. You specify how many columns of each you would like and for any string columns you pass a fixed length value. You then need to specify how many rows in total you require to be generated. This component is used by us to do testing of the pipeline and components downstream.
2012-07-27
2,236 reads
Sparse columns and column sets in SQL Server 2012 provide a way of accomodating the less-structured data that has always proved to be tricky for the relational model. They can be used very effectively where the attributes are sparse for any given entity and very numerous across all entities. Seth Delconte shows how to use them.
2012-07-26
1,410 reads
We’ve all heard about Extended Events and how they can help troubleshoot SQL Server performance, connectivity, and locking problems, but they seem so difficult to implement using T-SQL. Isn’t there a better way to implement SQL Server Extended Events?
2012-07-25
3,142 reads
By Steve Jones
Software is hard. While I love our Lucid Gravity, I realize that they are...
By James Serra
Making Data AI-Ready, Part 2 (This is the second article in a three-part series...
By Steve Jones
Can you use your GPUs when running a local model under Ollama? You can,...
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