Wednesday, August 06, 2008

Sunday, July 20, 2008

Microsoft Visual Studio Team System 2008 Database Edition GDR July CTP Released

Microsoft® Visual Studio Team System 2008 Database Edition GDR July CTP is available for download

In addition to providing support for SQL Server 2008 database projects, this release incorporates many previously released Power Tools as well as several new features. The new features include distinct Build and Deploy phases, Static Code Analysis and improved integration with SQL CLR projects.

Database Edition no longer requires a Design Database. Therefore, it is no longer necessary to install an instance of SQL Express or SQL Server prior to using Database Edition.

Download it here: http://www.microsoft.com/downloads/deta ... laylang=en

Monday, July 07, 2008

sp_indexinfo an enhanced index information procedure

Tibor Karaszi has created a very useful index information stored procedure for SQL Server 2005 and up.
This stored procedure will tell you the following"

What indexes exists for a or each table(s)
Clustered, non-clustered or heap
Columns in the index
Included columns in the index
Unique or nonunique
Number rows in the table
Space usage
How frequently the indexes has been used

Check it out here: http://www.karaszi.com/SQLServer/util_sp_indexinfo.asp

Wednesday, July 02, 2008

Awesome Collection Of ASP.NET Hacks, Tips and Tricks

We added a bunch of ASP.NET Hacks, Tips and Tricks

we have the following categories
1 Applications
2 Caching
3 Controls
4 Database
5 Dates
6 Debugging
7 Email
8 Encryption
9 Files
10 Images
11 Javascript
12 Objects and Classes
13 Pages
14 Sessions
15 Strings
16 Validation
17 Visual Studio
18 Web

The URL to these hacks is here: http://wiki.lessthandot.com/index.php/ASP.NET_Hacks
Bookmark that URL because we will be adding more hacks, tips and tricks

Interview With SSIS Guru Jamie Thomson

As promised yesterday, here is the link to the interview I did with jamie Thomson: Interview With SSIS Guru Jamie Thomson

Tuesday, July 01, 2008

I tried to keep it a secret but it is all over the internet: I am a SQL Server MVP

So all over the internet is exaggerated,I became a SQL Server MVP today and was not going to do a blog post about it. However some other people had other ideas

Congratulations, Denis!
SQL Server MVP - Denis Gobo

and even an announcement on lessthandot

My profile is here: https://mvp.support.microsoft.com/profile=BCCF7416-DA4E-4D73-83E2-65FD61BAB16D

Stay tuned, I will have an interview with Jamie Thomson tomorrow

Thursday, June 26, 2008

Working On SQL Admin Hacks, Tips and Tricks

I haven't posted for a while because I have been working on SQL Admin Hacks, Tips and Tricks lately. it is still a work in progress but below is what is on the wiki currently. It is not yet categorized but we will do that once we get more of these hacks done. To see what it will look like when it is done take a look at the SQL Server Programming Hacks

Can you think of any admin stuff you would like to see? This is what we have right now

Find Primary Keys and Columns Used in SQL Server
Get The Domain Name Of Your SQL Server Machine With T-SQL
Grant Execute/SELECT Permissions For All User Defined Functions To A User
Grant Execute Permissions For All Stored Procedures To A User
Kill All Active Connections To A Database
SQL Server 2008: When Was The Server Last Started?
Check If Auto Update Statistics Is Enabled By Using DATABASEPROPERTY
Three Way To List All Databases On Your Server
Generate A List Of Object Types By Using OBJECTPROPERTY
How to find all the tables and views in a database
Find Out Server Roles For a SQL Server Login
Which Service Pack Is Installed On My SQL Server
Test SQL Server Login Permissions With SETUSER
Login failed for user 'sa'. Reason: Not associated with a trusted SQL Server connection. SQL 2000
Login failed for user 'sa'. Reason: Not associated with a trusted SQL Server connection. SQL 2005
Compare Tables With Tablediff
Find All Tables Without Triggers In SQL Server
Find All Tables With Triggers In SQL Server
Create Stored Procedures That Run At SQL Server Startup
Cycle The SQL Server Error Log
How to read sql server error messages
Use OBJECT_DEFINITION To Track SQL Server Stored Procedure Changes
SQL Compare Without The Price Tag
How To Get The Database Name For The Current User Process
How To Find Out Which Columns Have Defaults And What Those Default Values Are
Fixing Cannot add, update, or delete a job that originated from an MSX Server Error after renaming a server

Tuesday, June 10, 2008

SQL Server 2008 Release Candidate 0 Available To The General Public For Download

SQL Server 2008 Release Candidate 0 has been made available to the general public.

There are 2 versions (and 3 flavors of each) ISO or DVD

Download it here: http://www.microsoft.com/downloads/details.aspx?FamilyId=35F53843-03F7-4ED5-8142-24A4C024CA05&displaylang=en

Don't forget to also visit the SQL Server 2008 Release Candidate 0 connect site here: https://connect.microsoft.com/SQLServer/content/content.aspx?ContentID=5395

Friday, June 06, 2008

Puzzle: Friday the Thirteenths

There is a puzzle on LessThanDot

The goal is to identify all friday the thirteenths for a given timeframe. We'll use a relatively small number of years, like 10. This should make it a little easier in procedural languages.


I posted my SQL solution, what about you?

Go here: Friday the Thirteenths and show me what you got. Make sure to use the [hide][/hide] tags so you don't spoil it for other people

Sunday, June 01, 2008

Less Than Dot A New community Site Has Been Launched

Myself and a bunch of friends have been working on Less Than Dot for a while now. The site has a forum, blogs and a wiki. More info why we started Less Than Dot and who we are can be found here: http://www.lessthandot.com/aboutus.php

Since I am mostly a SQL guy, I wrote a collection of SQL Server hacks. This collection of SQL hacks is available on the Wiki, right now we have 8 sections and between 70 and 80 hacks. Ideally we will have more hacks and we will also have a SQL admin hacks page in the future.

SQL Server Hacks Sections
* 1 NULLS
* 2 Dates
* 3 Sorting, Limiting Ranking, Transposing and Pivoting
* 4 Handy tricks
* 5 Pitfalls
* 6 Query Optimization
* 7 Undocumented but handy
* 8 Usefull Admin stuff For The Developer


Below are some direct links to a couple hacks, you can also get a list of all the hacks on the wiki itself here: SQL Server Programming Hacks




Hopefully you will like the site and find some good content, if you have a question then don't hesitate to ask it in a forum.

Tuesday, May 27, 2008

SQL Teaser uniqueidentifier

Create this table

CREATE TABLE #bla (SomeVal uniqueidentifier)
INSERT #bla VALUES('D903D52D-DBFA-4904-9D95-F265152A391F')

what do you think this will return?


SELECT * FROM #bla
WHERE SomeVal = 'D903D52D-DBFA-4904-9D95-F265152A391F12345678910'
UNION ALL
SELECT * FROM #bla
WHERE SomeVal = 'D903D52D-DBFA-4904-9D95-F265152A391F1'

Surprised?

What about this?

SELECT * FROM #bla
WHERE SomeVal = CONVERT(uniqueidentifier,'D903D52D-DBFA-4904-9D95-F265152A391F12345678910')

Interview With Erland Sommarskog About SQL Server and Transact SQL

I have interviewed Erland Sommarskog, you can find that interview here: Interview With Erland Sommarskog About SQL Server and Transact SQL

Enjoy

Wednesday, May 21, 2008

I have a question for you on DB development blunders!

Last week Kalen Delaney wrote Did You Know? I have a question for you on DBA Blunders! I though the comments were very interesting, S we did the DBA part but what about developers? What are some of the worst blunders you have seen?

Here are a couple of things

Starting a begin tran, then some insert/update command, never commiting but minimizing the window.


Here is my all time favorite, can you reduce this by 90%?


declare
@Token int
select
@Token = 51234567

declare @val int


if
left(@Token,1) = 1
select @val = 1
else if left(@Token,1) = 2
select @val = 2
else if left(@Token,1) = 3
select @val = 3
else if left(@Token,1) = 4
select @val = 4
else if left(@Token,1) = 5
select @val = 5
else if left(@Token,1) = 6
select @val = 6
else if left(@Token,1) = 7
select @val = 7
else if left(@Token,1) = 8
select @val = 8
else if left(@Token,1) = 9
select @val = 9
else if left(@Token,1) = 0
select @val = 0


select @val


Actually we put that on the whiteboard after we found it in our code and every time the developer wanted something we teased him about it...Oh you mean like that (pointing to the whiteboard)


What about changing the datatype from smallint to int in the table but keeping the params smallint in the proc.....mmmm why do I get a conversion in the execution plan?





So let's here some of what you have seen others write, we all know we couldn't write stuff like that ourselves right? :-)




Monday, May 19, 2008

Spring Cleaning, Getting Rid Of Some Books

I did some spring cleaning yesterday, I got rid of some old or obsolete books. I asked some people at work if they want any of these books and I believe all the books except for the JCL book are about to be given away.

I got rid of these books because:
I got a new version
I don't use the technology anymore
The book is obsolete


Click on the image and you can see a bigger version on my flickr page.


Spring Cleaning

Thursday, May 08, 2008

SSMS Tools PACK 1.0 is now available

Mladen Prajdić just released SSMS Tools PACK 1.0. SSMS Tools PACK is an Add-In (Add-On) for Microsoft SQL Server Management Studio and Microsoft SQL Server Management Studio Express.

Here are some of the features

Uppercase/Lowercase keywords.
Run one script on multiple databases.
Copy execution plan bitmaps to clipboard.
Search Results in Grid Mode and Execution Plans.
Generate Insert statements for a single table, the whole database or current resultsets in grids.
Query Execution History (Soft Source Control).
Text document Regions and Debug sections.
Running custom scripts from Object explorer's Context menu.
CRUD (Create, Read, Update, Delete) stored procedure generation.
New query template.

Check it out here: http://www.ssmstoolspack.com/Main.aspx

How to log when a function is called?

This question came up today and here is one way of doing it. It requires running xp_cmdshell so this is probably not such a good idea.
The problem with functions is that you cannot just insert into any table. INSERT, UPDATE, and DELETE statements modifying table variables local to the function.
EXECUTE statements calling an extended stored procedures are allowed.
So with this in mind we know that we can call xp_cmdshell, from xp_cmdshell we can use osql
Let's take a look
We will be using tempdb


--Create the table
USE tempdb
go
CREATE TABLE LogMeNow (SomeValue varchar(50), SomeDate datetime default getdate())
go

--Here is the proc
CREATE PROC prLog
@SomeValue
varchar(50)
AS
INSERT
LogMeNow (SomeValue) VALUES(@SomeValue)
go

--And here is the function
CREATE FUNCTION fnBla(@id int)
RETURNS int
AS
BEGIN
DECLARE
@SQL varchar(500)
SELECT @SQL = 'osql -S' +@@servername +' -E -q "exec tempdb..prLog ''fnBla''"'
EXEC master..xp_cmdshell @SQL
RETURN @id
END

Now call the function a couple of times

SELECT
dbo.fnBla(1)
SELECT dbo.fnBla(2)
SELECT dbo.fnBla(4)



And look inside the table




SELECT * FROM LogMeNow

What if you were to run this?


SELECT dbo.fnBla(4),* FROM sys.sysobjects


See the problem? The function will be called for every row, if you have a big table this can be problematic!!!!!!!!


I tested this on SQL 2000 and on SQL 2005(including a named instance). So there you have it, this is one way. does it smell kludgy and do I feel somewhat dirty now? yes it does indeed :-(

SQL Teaser: @@ROWCOUNT

Without running this what do you think will be printed?


SET ROWCOUNT 0
DECLARE
@ int
SET
@ =6
IF @@ROWCOUNT = 1
PRINT 'yes'
ELSE
PRINT 'no'
PRINT @@rowcount

Wednesday, May 07, 2008

Should SQLServer Have The CREATE [OR REPLACE] PROCEDURE Syntax?

I was asked by a developer at work the other day why SQL Server does not have the create or replace syntax. I started thinking and there were some advantages and one big disadvantage

First the advantages

Advantage
When scripting out a database you don’t have to generate if exists.....drop statements

When modifying an object from a file in source control you don’t have to change back and forth between CREATE and ALTER. This is really annoying sometimes; usually you create a proc or script out a proc and store it in Subversion/SourceSafe. Now you take that file, make some changes to the proc and run it. Of course it will tell you that the proc already exists, in general you don’t want to drop the proc and then execute the CREATE proc statement because then you have to worry about the permissions.(not everyone is running as dbo you know)

Disadvantage
I can overwrite a proc without even knowing it. What if we both are working on a proc and somehow we pic the same name I create my proc, you work in a remote location, you create yours and mine is gone.

Of course it is all what you are used to, I am sure the Oracle guys are not overwriting each other’s procs every day either

So what do you think? Would you be in favor of this syntax or not? Can you think of more advantages or disadvantages?

Tuesday, May 06, 2008

What Would You Like To Ask Erland Sommarskog?

In the Who do you want to see interviewed next?(sqlblog) and Who do you want to see interviewed next?(here) blog post I asked for some names of people who YOU would like to see interviewed. Erland Sommarskog's name was submitted in comments a couple of times. I contacted Erland and am happy to anounce that he has agreed to do this.

The first time I heard of Erland Sommarskog was in the SQL Server programming newsgroups. I also read all the articles on his site. When I answer questions I usually give the link out to these 4 articles
Arrays and Lists in SQL Server
Implementing Error Handling with Stored Procedures
Error Handling in SQL Server – a Background
and of course The curse and blessings of dynamic SQL

I always wondered why he didn't write a SQL book. Hey, now I can ask him that :-)

Before you think of any questions please visit Erland's page first (http://www.sommarskog.se/index.html) and read some of the articles he wrote.

You can submit questions until Monday May 12th and then I will forward the questions to Erland.