Grant Fritchey

03Sep 2010 by Grant Fritchey 5 Comments

Recursive Hiearchies in Reporting Services

I am not a Reporting Services guru and nor do I play one on TV. I am however forced to be all things Microsoft Data where I work. So I frequently find myself stretching way beyond my abilities. I just had to get a report running that feeds from a web service and has a recursive hiearchy with customized aggregation on multiple fields with drill down to a different set of details. Yeah, through the internet I can see the SSRS monsters rolling their eyes at the ease of this task. But for us mere mortals it was work. Since I spent so much time learning how to do it, I thought I'd share. XML as a Source First, because we have a very paranoid (and appropriately so) group of…

30Aug 2010 by Grant Fritchey 4 Comments

Upcoming Presentations: #24HOP & #SQLSAT46

PASS

Blogging has been a bit quiet of late. That's because I've been spending a lot my spare time getting ready for presentations that I have to give. Two of them are in about two weeks. First, and this one is going to be a big deal, is 24 Hours of Pass: Summit Preview. At the PASS Summit this year I have two spotlight sessions, both on tricks and tools for tuning queries, one on using execution plans and the other on using DMVs. Since the 24HOP presentation is supposed to be a lead-in to the PASS presentations, I decided that before you started tuning queries, you need to know which queries to tune. The presentation is titled: Identifying Costly Queries. I understand there are already nearly 2000 people registered. Let's…

23Aug 2010 by Grant Fritchey 4 Comments

PASS Elections

PASS

There are a lot of things I'd like to say about the PASS elections. I was on vacation last week when the news about the slate of candidates broke. I've gone through a lot of emotions thinking about this, which is funny, because, really, what does it matter? But, because of the people, and let's face it, PASS is nothing without the people involved, it does matter. But, I've decided to say as little as possible because I'm not convinced I can add constructively to the conversation and that is what is most needed at this time. First, I want to endorse a few candidates. The people I'm going to endorse, I'm endorsing because I know them personally. I've worked with them, I've talked to them, I've read their stuff.…

11Aug 2010 by Grant Fritchey No Comments

Viva Las Vegas!

SQL Server, T-SQL

I won't be going to Las Vegas, but I will be presenting to the Las Vegas SQL Server Users Group, S3OLV. The sesssion will be "Introduction to Execution Plans." Please swing by if you're in the area. I'm not sure if they'll make the LiveMeeting available to the public or if they'll record the session. But if they do, please attend that way too.

11Aug 2010 by Grant Fritchey 3 Comments

24 Hours of PASS: Summit Preview

PASS, T-SQL

Registration is open for the second 24 Hours of PASS this year. This one is going to be a preview of the Summit itself. So all the sessions are tied, in some manner, to sessions being given at the summit.Here's a link to go and register. I'm very excited to be able to say that I'll beÂ presentingÂ in thisÂ 24HOP. One of my presentations at the Summit this year is Identifying and Fixing Performance Problems Using Execution Plans. It covers pretty much what it says, methods for fixing performance problems by exploring the information available within execution plans. But, how do you know you have a performance problem? That's where my preview session comes in. Identifying Costly Queries will show you several ways to gather metrics on your system so that you…

01Aug 2010 by Grant Fritchey 6 Comments

A Milestone

Uncategorized

I just passed 100,000 views on the blog. That's from 400 posts over a period of time starting in March of 2008. You guys have posted 1129 comments. The average views per week went from 39 in 2008 to 160 in 2010. I realize others out there are hitting 100,000 a week, but for some of us small time bloggers, this is a big deal. I just wanted to say thanks for stopping by and I hope my attempts at understanding SQL Server, PowerShell, SCOM, spatial data, Visual Studio, ORM and whatever else I've posted about has been helpful in some way.

27Jul 2010 by Grant Fritchey 4 Comments

Powershell Remoting with SQL Server

PowerShell

One of the best things to come out with Powershell V2 is remoting and asynchronous calls. Between the two of these, you can basicallyÂ send commandsÂ simultaneouslyÂ to a number of SQL Server instances. BUT... and there always seems to be one of those, there is a lot of work required to get this running right. I'm going to outline what I did recently to test the ability of PowerShell to begin administering my servers remotely. Hopefully this provide the basis for a checklist and a how-to. I'll update this post over time so that I get things right. Enable remoting on the machines you wish to call This requires admin privileges, but it's pretty simple unless you need to modify which ports are available, etc. But to get it going the easiest…

23Jul 2010 by Grant Fritchey 6 Comments

SQL University: Introduction to Indexes, Part the Third

SQL Server, T-SQL

Nice to see most of you have managed to fight your way through the shoggoths outside to attend another lecture at the Miskatonic branch of SQL University. This will be the third and final part of the introduction to indexes lecture. Please, if you're going mad, step out into the hall. Our previous two lectures introduced the concept of indexes and then talked about two types of indexes, clustered and nonclustered. This lecture will cover the concept of statistics as they relate to indexes. If you followed the previous lecture then you know that indexes are stored in a Balanced Tree or B-Tree structure. You know that this storage mechanism is intended to provide fast retrieval of data. But, how can the query engine inside SQL Server know which index…

21Jul 2010 by Grant Fritchey 5 Comments

SQL University: Introduction to Indexes, Part the Second

SQL Server, T-SQL

Welcome once more to the Miskatonic branch of SQL University. Please try to concentrate. I realize the whipoorwills singing outside the window inÂ a coordinated fashion that sounds almost like laboured breathing can be distracting, but we're talking about indexes here. We left last class with a general idea what an index is, now it's time for some specifics. There are several different kinds of indexes, as we talked about last class. But the two you're probably going to work with the most are clustered, non-clustered. Each of these indexesÂ is stored in a structure called a B-Tree, a balanced tree, not a binary tree. That's a very important distinction. A B-Tree is a double-linked list that is defined by the keys of the indexes on the top and intermediate pages, and…

19Jul 2010 by Grant Fritchey 6 Comments

SQL University: Introduction to Indexes, Part the First

PowerShell, Spatial Data, SQL Server, T-SQL

Right, all eldritch tomes are to be closed and Elder Signs are to be put away during this course. Welcome to the History department here at the Miskatonic branch ofÂ SQL University. Why the History department? Well, first, because I like history and have frequently thought I would enjoy teaching it. Second, because I needed a hook upon which to hang part of the story I want to tell. What story is that you ask? Why, the story of the Dewey Decimal System. We are interested in studying history and historians must classify our subjects carefully. For advanced students we'll be covering the Library of Congress Classification System and the... Right, I give,Â this is the introductory class on indexes. If you thought we were covering something exciting and sexy like PowerShell,…