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Introduction to Dimension Security in SQL Server Analysis Services SSAS 2005

I have seen the tip Dynamically Control Data Filtering in SQL Server Reporting Services Reports which showed how to leverage a SQL Server database table to filter sales data based on the user running the report. I have a similar requirement to implement dynamic filtering except my data is in a SQL Server Analysis Services (SSAS) cube and the users query the data with a variety of different tools. How can I implement dynamic security in my case?

2009-09-15

2,770 reads

External Article

Tuning the Performance of Change Data Capture in SQL Server 2008

Change data capture is a new feature in SQL Server 2008 that provides an easy way to capture changes to data in a set of database tables so these changes can be transferred to a second system like a data warehouse. This document provides guidance on how to configure change data capture parameters to maximize data capture performance while minimizing the performance impact on the production workload. The scope of this document is limited to the capture of change data and the cleanup process. Querying the changed data is out of scope for this white paper.

2009-09-15

2,531 reads

External Article

Disaster Recovery for SQL Server Databases

High-Availability depends on how quickly you can recover a production system after an incident that has caused a failure. This requires planning, and documentation. If you get a Disaster Recovery Plan wrong, it can make an incident into a catastrophe for the business. Hugo Shebbeare discusses some essentials, describes a typical system, and provides sample documentation.

2009-09-14

4,158 reads

External Article

Ten Common SQL Programming Mistakes

It is not always easy to spot "antipatterns" in your SQL, especially in more complex queries. In this article, Plamen demonstrates some of the most common SQL coding errors that he encounters, explains their root cause, and illustrates potential solutions.

2009-09-11

8,634 reads

External Article

Using Star Join and Few-Outer-Row Optimizations to Improve Data Warehousing Queries

In this white paper we discuss two of the new features in SQL Server 2008, Star Join and Few-Outer-Row optimizations. We test the performance of SQL Server 2008 on a set of complex data warehouse queries designed to highlight the effect of these two features and observed a significant performance gain over SQL Server 2005 (without these two features).

2009-09-10

4,815 reads

External Article

Transact-SQL Formatting Standards

How should SQL code be formatted? What sort of indentation should you use? Should keywords be in upper case? How should lists be lined up? SQL is one of those languages that will execute however you treat whitespace and capitalization. However, the way SQL is laid out will effect its readability and the time taken to review and understand it. Standardisation of code layout is an important issue, but what standard should you adopt? Rob avoids a direct answer, but tells you the sort of answers you'll need to decide upon when creating a strategy for formatting SQL code.

2009-09-09

4,890 reads

External Article

Options for hiding SQL Server code

I am aware of the WITH ENCRYPTION clause that is used to encrypt the code for objects like views, stored procedures and functions. It sort of fulfills my purpose and is easy to implement, but it does not cover all SQL Server objects. In this tip we look at another option to restrict users from viewing the definition/code of any SQL Server object.

2009-09-08

5,538 reads

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Question of the Day

Upgrading Admin Queries

I have a query from a former DBA that we run on SQL Server 2025 to check on database metadata. This query references sys.sysaltfiles. I want to refactor this code to be more modern. Which DMV should I reference instead?  

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