Data Otaku

A seemingly random collection of data- and database-related posts

Posts
  • Data Otaku

    Presenting Actuals and Forecast Concurrently in a Write-Enabled Cube

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    I have written a series of entries on writeback applications and wanted to add this last entry highlighting a common cube design challenge associated with these. Quite often with write enabled cubes, we enter forecasted data for future periods. When those...
  • Data Otaku

    UPDATED: Getting the Timeline Filter (Slicer) in Excel 2013 to Work with an Analysis Services OLAP Cube

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    In Excel 2013, there is a new Timeline filter (slicer) that allows you to easily select a range of dates over which you want to filter your data. The feature is very slick. Here's an picture: I wanted to use this slicer in an Analysis Services demo...
  • Data Otaku

    Creating Your First FileTable in SQL Server Denali CTP3

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    With SQL Server Denali CTP3 now available , I'm starting to explore some of the new Database Engine capabilities. One that caught my attention is the FileTable . The FileTable builds upon FileStream storage which allows BLOB data to be stored as individual...
  • Data Otaku

    Building a Writeback Application with Analysis Services

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    Recently, I delivered a presentation at the 2012 PASS SQL Rally titled Building a Writeback Application with Analysis Services. Based on feedback from that session, I’ve decided to address this topic in my blog, making this information accessible...
  • Data Otaku

    Allocation across a Parent-Child Hierarchy

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    NOTE This is part of a series of entries onthe topic of Building Writeback Applications with Analysis Services . A parent-child hierarchy consists of members with which values are associated at various levels. A frequently cited example of such a hierarchy...
  • Data Otaku

    Understanding Allocations

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . In my previous entries on this topic, I’ve been writing data to the Score measure at the intersection of an individual project and...
  • Data Otaku

    Secure the Authentication Process

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    SQL Server supports two authentication mechanisms: Windows authentication and SQL Server (SQL) authentication. With Windows authentication, SQL Server simply validates a user’s Windows identity with an identity management solution such as Active...
  • Data Otaku

    SQL Injection Demo

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    The purpose of this post is to demonstrate a simple SQL injection attack. For information on securing a database against SQL injection, please review this post . NOTE Implementing an actual SQL injection attack against a system for which you have not...
  • Data Otaku

    Transparent Data Encryption (TDE) Demo

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    This post demonstrates the use of Transparent Data Encryption (TDE) to protect database files including backups. To understand how this features can be employed to improve the security of database applications, please review this post . The first step...
  • Data Otaku

    Build Secure Database Applications with Microsoft SQL Server

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    The recent spate of breaches and attacks targeting various business and government computing systems drives home the message that our (collective) systems are at risk from threats both internal and external. As a database professional, I'm inclined to...
  • Data Otaku

    Application-Specific Endpoint Demo

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    This post demonstrates the use of endpoints to secure application connectivity to an instance of SQL Server. The first step in the demonstration is to create two logins to test the functionality of the endpoints. In the code below, I'm using local...
  • Data Otaku

    Virtualizing the SharePoint 2010 Database-Tier

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    Over the last few months, I’ve had a number of conversations with customers regarding the virtualization of SQL Server for the database-tier of SharePoint Server 2010 deployments. Historically, administrators have been hesitant to virtualize SQL...
  • Data Otaku

    Defend against SQL Injection

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    SQL injection is an attack by which user input is used to modify the logic of a SQL statement. The attack may be used to disrupt the underlying database or bypass application logic but more typically it is used to extract additional information from the...
  • Data Otaku

    Harden the Database Server

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    Reducing the database server’s exposure to attacks (hardening) is a pretty big task. The physical security of the server along with that of the infrastructure on which it depends must be considered. Then there's the network and the operating system...
  • Data Otaku

    Securing the Data Warehouse

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    After completing a series of posts on Building Secure Database Applications , the question of how the practices and features highlighted apply to data warehouses arose. In a traditional database application, the database is a behind-the-scenes element...
  • Data Otaku

    Building a Write-Enabled Cube

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . To build a writeback application, you need a write-enabled cube and an application with which to interact with it. I’ll cover the...
  • Data Otaku

    A Simple Demonstration of What-If Analysis

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    NOTE This is the second of a series of entries on the topic of Building a Writeback Application with Analysis Services . To demonstrate writeback with Analysis Services, I’ll leverage a simple model built around a project selection process that...
  • Data Otaku

    Introducing Dimension Writeback

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . Up to this point, we’ve focused exclusively on the update of measures using cell writeback. When we need to insert, update or delete...
  • Data Otaku

    Building a Custom Writeback Application

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . If you have not read the other posts in this series, you will want to read A Technical Review of the Simple Demonstration before proceeding...
  • Data Otaku

    Encrypt the Data

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    SQL Server supports the encryption of data through a number of mechanisms. These include: Cryptographic functions for the encryption and signing of individual values, The Transparent Data Encryption (TDE) feature through which the data and log...
  • Data Otaku

    Managing Writeback Cubes

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . In presenting on the topic of writeback applications with Analysis Services, there are a few administrative questions that seem to come...
  • Data Otaku

    Writeback to a Regular Dimension

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    NOTE This is part of a series of entries on the topic of Building Writeback Applications with Analysis Services . In the post on writeback to a parent-child dimension , writeback was implemented using the ALTER CUBE MDX statement. If you attempt to...
  • Data Otaku

    Assign Minimal Permissions

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    Users should be permitted to perform just those operations required within the context of an application and nothing more. Restricting user permissions in this manner limits the potential for inappropriate data access and database actions. With this...
  • Data Otaku

    Understanding What-If Analysis

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    NOTE This is the first of a series of entries on the topic of Building Writeback Applications with Analysis Services . Business analysts frequently encounter questions focused on the impact of potential change: What if we raised our parts and...
  • Data Otaku

    Sidebar: The Other What-If Analysis Options in Excel

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    NOTE This is part of a series of entries on the topic of Building a Writeback Application with Analysis Services . What-if analysis against Analysis Services is just one form of what-if analysis supported by Excel. Other forms focus on spreadsheet...
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