Every DBA needs a few tricks up his/her sleeves to help them better manage their SQL Server 2000 environment. In this article I will explore a couple of such tricks. I will first explore how to cycle the SQL Server error log, and why you might want to do this. Secondly I will discuss backup history information and why you would need to periodically remove some of the older history information.
2006-03-16
2,855 reads
Excerpted from Brian Larson's book Microsoft SQL Server 2005 Reporting Services 2005, this chapter will help you build a table report and matrix report without the use of the Report Wizard, and it will discuss two new report types -- the chart report and the list report.
2006-03-15
3,467 reads
One advantage of CLR assemblies is the ability to consume web services from within the database. This wouldn’t be easy with T-SQL, and would also require a lot of work in an unmanaged extended stored procedure. With .NET, it’s almost as simple as accessing a local DLL. There are just a couple of extra command-line utilities we need to run to be able to access web services from within a SQL assembly:
2006-03-14
3,849 reads
Server 2005 now supports a more programmable error trapping convention in T-SQL code. This error handling is known as the TRY/CATCH block. The TRY/CATCH block allows T-SQL to handling errors like other programming languages, such as Microsoft Visual C# and C++. In addition to the TRY/CATCH block, Microsoft has expanded the set of available system functions in SQL Server 2005 for returning error codes and messages when an error occurs in your T-SQL code. This article will explore the new TRY/CATCH block and explain the new system functions for returning error codes and messages.
2006-03-13
3,150 reads
Rules play a central role in a wide variety of applications. In addition to the declarative specification of business rules, the simple rule engine design described in this article can be used to implement state machines, predicate dispatchers, or any other rule-based system.
2006-03-10
3,958 reads
In the past, it was common for an employer to work with their employees and pay to keep their skills current. While this still happens, in this age of high employee (and employer) turnover, many companies are more circumspect about how much they will spend to keep their employees keep up-to-date. At the end of the day, it is your responsibility to make sure this happens and there are many good reasons why you should strive to do so and many ways in which you can do it.
2006-03-09
3,546 reads
When a new version is released or when existing software is upgraded there is always a learning curve and getting used to new ways of doing things. This article demonstrates how to use SQL Server 2005's catalog views in comparison with using system tables in SQL Server 2000.
2006-03-08
2,613 reads
Most software projects fail. Only about a quarter are completely successful. About half are late and over budget and the remaining quarter just fade into oblivion. What if there was a simple way to ensure your project’s success? There is, and it’s all about starting out in the right way
2006-03-07
3,274 reads
SQL Server 2005 offers a new tool, Database Snapshot, which helps protect against user errors. It's a great feature, in some ways. But Ravindra Okade cautions against relying on it as an all-purpose rescue device.
2006-03-06
2,274 reads
SqlSiteMapProvider reads site maps from SQL Server databases. And it takes advantage of the ASP.NET 2.0 provider architecture to integrate seamlessly with the site navigation subsystem. Just create the site map database and register SqlSiteMapProvider as the default provider, and then, like magic, everything else just works.
2006-03-03
2,137 reads
I’ve been thinking a lot lately about what it actually takes to make an...
By Steve Jones
Redgate is a for-profit company. We look to make money by building and selling...
I’ve uploaded the slides for my Techorama session Microsoft Fabric for Dummies and my...
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We create the following table and then insert some records in it:
create table t1 ( id int primary key, category char(1) not null, product varchar(50) ); insert into t1 values (1, 'A', 'Product 1'), (2, 'A', 'Product 2'), (3, 'A', 'Product 3'), (4, 'B', 'Product 4'), (5, 'B', 'Product 5');What happens if we execute the following query in both Sql Server and PostgreSQL?
select id,
category,
string_agg(product, ';')
over (partition by category order by id
rows between unbounded preceding and unbounded following) as stragg
from t1; See possible answers