My last two blogs were on understanding columnstore and creating columnstore indexes. In this post, I will touch on one last topic, when to use columnstore indexes. As noted...
2019-08-05 (first published: 2019-07-17)
634 reads
In my last blog I explained what a columnstore index is, in this blog, we will dive into creating a clustered columnstore index and look at the performance differences...
2019-07-31 (first published: 2019-07-10)
539 reads
Recently I reviewed filtered indexes, this time let’s look at columnstore indexes. These indexes are very useful for data warehouse workloads and large tables. They can improve query performance...
2019-07-11 (first published: 2019-06-26)
1,230 reads
When you run a query twice, and get dramatically different run times, your first step can be to try to identify the differences in execution plans. For many that...
2019-07-05 (first published: 2019-06-19)
907 reads
In this post, we continue with another beginner’s blog of database features that may be unknown to many. Let’s take a look at filtered indexes. Many database administrators are...
2019-06-10 (first published: 2019-05-22)
748 reads
I give performance presentations at many different events to all levels of SQL Server professionals. Over time I’ve noticed that some DBAs and developers have never looked at the...
2019-05-29 (first published: 2019-05-15)
2,065 reads
I am very excited to announce I will be delivering a pre-conference session on SQL Server Performance Tuning on November 5th at PASS Summit 2019. If you have ever...
2019-04-24
68 reads
Another quick post of simple changes you can make to your code to create more optimal execution plans. This one is on implicit conversions. An implicit conversion is when...
2019-04-29 (first published: 2019-04-17)
1,113 reads
One of the easiest things to fix when performance tuning queries are Key Lookups or RID Lookups. The key lookup operator occurs when the query optimizer performs an index...
2019-04-17 (first published: 2019-04-03)
715 reads
March is Women’s History Month, to celebrate the PASS Women in Technology Virtual Group (@PASS_WIT) held a webcast featuring prominent...
2019-04-09 (first published: 2019-03-20)
1,029 reads
By Brian Kelley
The bottom line here is this: the idea that a CSP takes care of...
In today's data-driven world, SQL (Structured Query Language) is a blazing-hot skill. It's your...
By Steve Jones
I leave tonight for Australia. I was in London 3 days ago, so this...
I have been asked to fine-tune the following SQL that was written by a...
In this scenario, I seek assistance in implementing row-level permissions for a table named...
I've tried different credentials, target server versions, etc. hitting our Primavera WSDL. Works great...
What are the initial config sizes for the tempdb primary data files, secondary data files, and log files in SQL Server 2022?
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