Yesterday I wrote a blog post discussing how the guest user can become a security threat. The script which was demonstrated in the example had a small T-SQL query which creates a new user. Later, I got an email from a user who had created this scenario on his production environment. It makes me sad that I had clearly talked multiple times about how to execute this as a trial on a development server or a test server, but NOT on a production server. Anyway, here is the email about the Force Removing User.
SQL SERVER – Solution Part 2 – A Quick Puzzle on SQL JOIN and NULL – SQL Brain Teaser
Some questions are timeless and they never grow old; no matter how much they grow old their interest never dies. Earlier, I asked a simple puzzle based on a conversation on SQLAuthority Page, and have received an overwhelming response from readers. I still get emails related to this puzzle every day. Let us see a quick puzzle between SQL Join and SQL Null.
SQL SERVER – T-SQL Errors and Reactions – SQL in Sixty Seconds #002 – Video
We got tremendous response to our very first video of SQL in Sixty Seconds #001. We talked about how to convert Subquery to CTE very quickly. My co-authors Vinod Kumar and Rick Morelan, we often came across very interesting and useful tips which we believe would be helpful to readers.…
Read MoreSQL SERVER – Solution – A Quick Puzzle on JOIN and NULL – SQL Brain Teaser
Yesterday was really fun. I asked a simple Brain Teaser and we had excellent conversation on SQLAuthority Page as well SQL SERVER – A Quick Puzzle on JOIN and NULL – SQL Brain Teaser. That was an easy puzzle for those who have attended the SQL Server Questions and Answers online course. Here is a quick…
Read MoreSQL SERVER – A Quick Puzzle on JOIN and NULL – SQL Brain Teaser
It seems that we all love to solve puzzles. On SQLAuthority Page, we have been playing the number game and those who are playing with us know how much fun we are having. Sometimes, the answers are so innovative and informative that they open up those aspects of the technology which I have not thought of. Today, I have a very relaxing puzzle and a SQL Brain Teaser for all of you. It is based on my earlier blog post on INNER JOIN and NULL, so I suggest reading the said post first if you want to get the complete idea.
SQL SERVER – INNER JOIN Returning More Records than Exists in Table
I blog and engage with the community because it gives me satisfaction when someone resolves an issue. A few days ago, I blogged about a DBA who began his first day at a new company and could not find out where the installation summary file was. He was very happy…
Read MoreSQL SERVER – Convert Subquery to CTE – SQL in Sixty Seconds #001 – Video
SQL Server is an ocean of information. I believe if one starts learning today, after 60 years he/she may still be learning the subject (there are always a few exceptions)! Recently, I published the SQL Server Questions and Answers video tutorial, and since the course came out, I have been…
Read More