We’ve previously looked at how to implement vertical partitioning and the benefits it can bring within our data. Here I’d like to dive a little further into improving the performance even further with a couple of modifications to our schema. We’ll use the same setup as we had previously to create the table, populate it and partition it. This results in […]
Tag: Performance
Categories
Benefits of Vertical Partitioning
We recently looked at implementing vertical partitioning on a set of data. In an earlier introduction post we also mentioned the benefits which can be seen as a result of the partitioning in both our maintenance and querying of the data. Here we’ll take a look at those benefits with a little more evidence. We’ll be using the data […]
Categories
Implementing Vertical Partitioning
We previously looked at an introduction to Vertical Partitioning where we covered what it is and the potential benefits and drawbacks of using it. Here I wanted to build up some data and show how we may vertically partition it to help make it more manageable for us. So that we’ve got some relevant data to use […]
Categories
Introduction to Vertical Partitioning
When dealing with large volumes of data in SQL Server we may need to look for strategies to make querying and managing the data easier to handle. A few months back we looked at an approach where we partitioned our data into multiple segments by applying partition functions and schemes to our tables. This helps […]
Categories
Performance Considerations using APPLY
In the previous post we looked at how to use the CROSS APPLY and OUTER APPLY operators as alternative to a JOIN in queries with some examples. As we wrapped that up I also mentioned that there can be drawbacks to using APPLY in our queries, particularly when we’re working with large data sets. The issue is due to the way that the right hand […]
Categories
Partition Elimination in SQL Server
Back in our introduction to partitioning I’d mentioned that using partitions can also bring us benefits in terms of performance. That performance comes in the way of partition elimination with our queries. Before we get started let’s set the stage with a sample table and one million records of data which we’ve used before: What is partition elimination Partition […]
Categories
Partition Switching in SQL Server
Continuing with our recent theme of partitioning I wanted to make sure that we looked at one of my personal favourite features – Partition Switching. Partition Switching is the ability to switch an entire partition of data from one table to another almost instantly. Where it gets interesting is that this is the same operation […]
Categories
Managing Table Partitions (Part 2)
Last time out, following up to our posts looking at an introduction to partitioning and how to implement it we started to look at how to manage partitions. In this post we’ll continue that theme by looking at how we’d go about removing (or merging) partitions as well as covering some general considerations when we’re performing operations on partitions and […]
Categories
Implementing Table Partitioning
A little while back we looked at an introduction to table partitioning where we covered the concepts involved in the partitioning. This time out we’ll look at how to implement those concepts to create a partitioned table. As we’re going through the motions for this let’s start off by creating a table and fill it with some […]
Categories
Introduction to Partitioning
In SQL Server you can use partitioning to split a table into multiple segments based on the data contained within it. This feature can be used to bring improvements to performance and provide more flexibility with maintenance for those tables which are partitioned. The impact of these will be key for large data sets where […]
Andy Brownsword 