Is it Time to Switch to ELT?
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
Additional Articles
A closer look at CXPACKET wait type in SQL Server
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
Physical Join Operators in SQL Server - Hash Operator
In the concluding part of the Physical Operators series we look at the Hash operator.
2010-07-12
3,790 reads
Building a Data Warehouse Blueprint for Success
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
Developing Modifications that Survive Concurrency
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
How to add NULL Defense to your SSIS packages using scripting
In this part of NULL Defense series, we will discuss how to create NULL Defense in Script Transformation.
2010-07-08
3,480 reads
Data Warehousing Architecture - Designing the Data Staging Area
The staging area tends to be one of the more overlooked components of a data warehouse architecture, and yet it is an integral part of the ETL component design. Learn why it is best to design the staging layer right the first time, enabling support of various ETL processes and related methodology, recoverability and scalability.
2010-07-07
6,197 reads
Multi-parameter CLR aggregate in SQL Server 2005
How is it possible to pass multiple parameters to a SQL Server 2005 CLR aggregate?
2010-07-06
2,370 reads
Physical Join Operators in SQL Server - Merge Operator
Part II of the Physical Joins series looks at the Merge operator.
2010-07-05
4,112 reads
Reporting Services 2008 R2: Geospatial Visualization – Part I
Geospatial Visualization is one of the key new features of SQL Server 2008 R2 Reporting Services. This step-by-step tutorial demonstrates the creation of a Map Report.
2010-07-02
3,764 reads
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Question of the Day
Creating a JSON Document III
I have this data in a table called dbo.NFLTeams
TeamID TeamName City YearEstablished ------ -------- ---- --------------- 1 Cowboys Dallas 1960 2 Eagles Philadelphia 1933 3 Packers Green Bay 1919 4 Chiefs Kansas City 1960 5 49ers San Francisco 1946 6 Broncos Denver 1960 7 Seahawks Seattle 1976 8 Patriots New England 1960If I run this code, how many rows are returned?
SELECT TOP 2
json_objectagg('Team' : TeamName)
FROM dbo.NFLTeams;
See possible answers