2012-01-18
8 reads
2012-01-18
8 reads
2011-08-24
9 reads
What are the most influential papers in the world of Big Data? Let me suggest:...
2011-05-30
5 reads
2011-05-02
3 reads
2011-02-02
6 reads
2011-01-05
6 reads
I searched the internet for “connect and forget”. Wonderbox.net offer is described as a...
2010-10-10
2 reads
10 years ago IT professionals considered database technology “mature” and analysts were preparing to...
2010-09-13
7 reads
“The information age is an idea that the current era will be characterized by the ability of...
2010-08-22
1 reads
“Content is king” is the golden rule of the SEO. The semantic web is all about data. Any web...
2010-06-25
9 reads
I recently had to copy an Azure SQL database (SQL db) from one subscription...
Ivan Jelić, Group CEO at Joyful Craftsmen, reflects on what separates AI success from...
By Chris Yates
AI is no longer a niche capability – it is a leadership catalyst. As...
Comments posted to this topic are about the item How a Legacy Logic Choked...
Comments posted to this topic are about the item SQL Server Columnstore Index Fragmentation
Hi i was surprised to see the approach my coworkers used to sunset talend...
The columnstore index is absolutely different than the traditional rowstore b-tree index. Because of this, it doesn't suffer from the same kind of fragmentation across pages as the b-tree index. Yet, it does suffer from a type of fragmentation brought about by an excess of deleted rows in a rowgroup and a lack of compression of storage because more things are in the delta store. While b-tree indexes use dm_db_index_physical_stats to show fragmentation, which system tables or DMVs can be used in SQL Server (prior to SQL Server 2025) to determine columnstore fragmentation?
See possible answers