A number of hierarchies and networks are most conveniently modelled as binary trees. So what is the best way of representing them in SQL? Joe Celko discards the Nested Set solution in favour of surprisingly efficient solution based on the Binary Heap
2010-07-20
4,764 reads
Shared Datasets are one of the features introduced in SQL Server 2008 R2. This article demonstrates how to implement Shared Datasets as well their use-case scenarios.
2010-07-19
4,132 reads
The capability of extending the limits of combining multiple node hierarchical structures has not been fully explored. Michael M. David presents a solution to advanced structure combining that is simple to use, generic and freely extends the way hierarchical structures can be semantically combined to produce advanced new hierarchical data structure mashups that dynamically increase the value of the data.
2010-07-16
3,196 reads
Spatial data support in SSIS is weak in comparison to SQL Server. This article demonstrates how to use the CLR to achieve the SQL Server levels of spatial data support in SSIS.
2010-07-15
2,450 reads
Extract-load-transform integration can offer performance and cost advantages over ETL. Here's how to pick the right approach.
2010-07-14
4,934 reads
If you have a server that has more than one CPU core, you may experience high values of CXPACKET wait types. This is typically due to queries that run in parallel and the real issue is to understand how different versions of a query can impact CXPACKET waits. In this tip we examine how changing a query can impact CXPACKET waits.
2010-07-13
4,058 reads
In the concluding part of the Physical Operators series we look at the Hash operator.
2010-07-12
3,790 reads
One of the most integral components and critical success factors of any enterprise data warehousing initiative is the Solutions Architecture document, a high-level conceptual model of a data warehousing solution. Learn why this collaborative effort that addresses the needs of all major stakeholders, including both the business units and Information Technology (IT), is essential.
2010-07-09
2,224 reads
You can create a database under the assumption that SQL looks after all the problems of concurrency. It will probably work fine under test conditions: then, in the production environment, it starts losing data in subtle ways that defy repetition. It is every Database Developer's nightmare. In an excerpt from his acclaimed book, Alex Kuznetsov explains why it happens, and how you can avoid such problems.
2010-07-09
3,657 reads
In this part of NULL Defense series, we will discuss how to create NULL Defense in Script Transformation.
2010-07-08
3,480 reads
PlanTrace Now Supports PostgreSQL The same plan analysis you know from...
By Steve Jones
the kinder surprise – . the point in your early adolescence when you realize...
If you’ve been following my T-SQL Snapshot Backup series, most of what I’ve covered...
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