All Articles - SQL Authority with Pinal Dave

SQLAuthority News – Pluralsight On-Demand FREE for SQL Server Course

April 26, 2011

SQL, SQL Server, SQL Tips and Tricks, SQLAuthority News

Best Practices, SQL Scripts, SQL Training

The Moral of Story You can watch the most popular SQL Server – TSQL course on Pluralsight On-Demand for FREE for the next 48 hours. It starts NOW! The Story Learning is always difficult. After learning how to apply your knowledge, learning in real life is even more difficult. Technology…

SQLAuthority News – 1700th Blog Posts – Over 25 Millions of Views – A SQL Milestone

April 25, 2011

Pinal Dave

Personal, SQL, SQL Server, SQL Tips and Tricks

Database

It has been a tradition in this blog to write a “milestone blog post” for every 100th post. I am always looking forward to this because I am given a chance to do only three times a year. This year 2011 has been very nice to me so far- lots…

SQL SERVER – How to ALTER CONSTRAINT

April 24, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL Constraint and Keys, SQL Scripts

After reading my earlier blog post SQL SERVER – Prevent Constraint to Allow NULL. I recently received question from user regarding how to alter the constraint. No. We cannot alter the constraint, only thing we can do is drop and recreate it. Here is the CREATE and DROP script. CREATE…

SQL SERVER – How to Use Decode in SQL Server?

April 23, 2011

Pinal Dave

SQL Tips and Tricks

SQL Function, SQL Scripts, SQL Server

One of the reader of the blog has sent me question regarding how to use DECODE function in SQL Server.

SQL SERVER – Potential Bottlenecks for Performance

April 22, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

In recent GIDS presentation, I was asked can I name potential bottlenecks for performance. I was taken back to my collage life with this question. I remember that I have memorized following names as potential bottlenecks. CPU RAM Hard Disk Network Application Code Today when I look back at this,…

SQL SERVER – Prevent Constraint to Allow NULL

April 21, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL Constraint and Keys, SQL Scripts

With naked eyes, we often spot the evident problems but the specific details are missed many a time. Something similar happened recently. One of the blog readers sent me an email asking about a bug in how CHECK CONSTRAINT works. He suggested that check constraint accepts NULL even though the…

SQLAuthority News – Last 5 Days to WIN Windows Phone 7 – 140 Words to Win

April 20, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks, SQLAuthority News

You can win Windows 7 Phone by writing only 140 Characters. You need to leave a comment over here: SQLAuthority News – Win Windows Phone from Idera in 140 Characters – A Cartoon Challenge of SQL over here. There are so far around 150 comments and I believe that chances of…

SQLAuthority News – Sudden Death of SSD on my Laptop – A Warning for SSD Users

April 19, 2011

Pinal Dave

Personal, SQL, SQL Server, SQL Tips and Tricks, SQLAuthority News

The solid state drive on my personal laptop just died. Here’s the story. I have a DELL XPS laptop which is now 2.5 years old. The laptop had demonstrated no issues. About 6 months ago, I decided to upgrade the hard drive to solid state drive. There was a lot…

SQL SERVER – Speaking on T-SQL Worst Practices at Great Indian Developer Summit 2011 – Bangalore

April 18, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL Scripts

Presenting in front of techies is always fun. I will be speaking at Great Indian Developer Summit 2011 – Bangalore on April 19, 2011. Here is the details of my session: Session Title:“What did I do?” – T-SQL Worst Practices “Oh My God! What did I do?” Chances are you…

SQL SERVER – Applying NOLOCK Hint at Query Level – NOLOCK for whole Transaction

April 17, 2011

Pinal Dave

SQL, SQL Server, SQL Tips and Tricks

SQL Scripts

Just received very interesting question in email: “How do I apply NOLOCK hint to my whole query. I know that I can use NOLOCK at every table level but I have many tables in my query and I want to apply the same to all the tables. I want to…