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Technical Article

Introduction to XQuery in SQL Server 2005

This white paper provides an introduction to various features of XQuery implemented in SQL Server 2005 such as the FLWOR statement, operators in XQuery, if-then-else construct, XML constructors, built-in XQuery functions, type casting operators, and examples of how to use each of these features. Non-supported features of XQuery in SQL Server 2005 and workarounds are described in this article. It also presents three scenarios where XQuery is useful.

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2005-06-23

2,686 reads

Technical Article

Shredding a Recordset

Shredding a recordset in this instance means that we are going to show you how to take a recordset produced in your SSIS package, loop over the rows in that recordset, break apart the columns and do something with them. This is really useful when you want to preform an action on a row of data for every row of data just like we are going to do here. Sure we could use an ExecuteSQL task to get the recordset as well but that does limit our choices of source data whereas doing it in the pipeline does not. Something useful we hope.

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2005-06-21

2,103 reads

Technical Article

Reproduced with kind permission from the blog of Ashvini Sharma (MSFT)

InfoPath forms can be saved to XML, these XML Files can later be used in SSIS XMLSource adapter to pull out the data in tables and columns. However, there are some common problems you may meet in these scenarios. This article describes how to work around these potential problems. The issues mentioned in this article is not only specific to InfoPath files, it can also be referenced in other similar situations as well.

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2005-06-20

1,328 reads

Technical Article

MODELS, MODELS EVERYWHERE, NOR ANY TIME TO THINK

Even a cursory inspection of data management practice reveals that the majority of practitioners-–be they novices, or experienced, users or vendors--operate in a “cookbook”, product-specific mode, without really knowing and understanding the fundamental concepts and principles underlying their field, e.g. what data means, what data model, database, DBMS, data independence really are, and so on.

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2005-06-17

2,510 reads

Technical Article

SQL Server 2005 - SQL Server Integration Services - Part 3

This is the third article of our series discussing SQL Server 2005 Integration Services (SSIS), which provides Extraction, Transformation, and Loading features, replacing Data Transformation Services (DTS) available in SQL Server 2000 and 7.0. We have already presented an overview of the basic concepts necessary to design and implement SSIS-based projects. We have also stepped through the creation of one such project using Business Intelligence Development Studio. Our sample SSIS package, described in our previous article, delivered the basic functionality we needed (running an external process and loading the outcome of its execution stored temporarily in a text file into a database), however, it had one major shortcoming - a lack of support for reusability.

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2005-06-15

1,968 reads

Technical Article

SQL Server 2005 - SQL Server Integration Services - Part 2

In the first article of this series, we presented the basic concepts relevant to understanding SQL Server 2005 Integration Services, which is the primary mechanism for Extraction, Transformation, and Loading (ETL) functionality available in SQL Server 2005. We also provided a quick overview of tools that allow you to manage such activities as DTS package design, development, and storage, as well as interactive and scheduled execution. In order to gain better familiarity with each of these activities, we will look at them from a more practical perspective, using a number of fairly straightforward examples.

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2005-06-14

2,231 reads

Technical Article

SQL Server 2005 - SQL Server Integration Services - Part 1

One of the SQL Server 2005 Beta 2 features that has undergone considerable architectural, functional, and interface changes, compared with its earlier versions, deals with extraction, transformation, and loading (also known as simply ETL) of data. (In other words, allowing you to move data between a variety of stores and to modify it in the process, according to your arbitrary requirements). While in SQL Server 7.0 and 2000, such capabilities have been provided by Data Transformation Services (DTS in short), Microsoft decided that the degree of modifications introduced in the new version justified re-branding it, hence its rearchitectured and significantly improved implementation has been introduced under the new name of SQL Server Integration Services (SSIS).

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2005-06-13

12,405 reads

Technical Article

Introduction to C# for DBA's

This is the first article in a series on writing stored procedures using the Common Language Runtime (CLR). This article focuses on basic C# syntax and using Visual Studio to build a stored procedure. It's targeted at DBA's and anyone else who primarily writes in Transact-SQL and hasn't had much exposure to .NET yet.

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2005-06-10

5,111 reads

Technical Article

Enumerate SQL Server Names from "SQL Server Enterprise Manager"

Occasionally, SQL Server database administrators are requested to provide a list of development SQL Servers, production SQL Servers and so on. Many articles, such as "Monitor Disk Space on Multiple SQL Servers" and "Inventorying hardware and OS information on all SQL Servers" require a list of servers in a text file.

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2005-06-08

2,281 reads

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PostgreSQL psql Meta Commands: Databases

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PostgreSQL psql Meta Commands: Databases

Which of the following meta commands (sometimes called backslash or slash commands) within psql will provide you with information about the databases on the cluster?

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