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| Date | Event |
| 07/06/2010 | Searching and bookmarks service have appeared in the site forum. |
| 01/30/2010 | The new stage named "Puzzles" is implemented. Exercises of this stage begin with No.251 and are accessible to participants of 3rd stage. The points earned on solving of these exercises do not give a contribution to 3-rd stage, but are included into the total number of points of rating exercises. |
| 07/01/2009 | New service - Modelling of data - has been launched. Service allows to add the data into the database for exercises of 2/3 stages and to compare the results on these data of test solution with own query. |
| 06/26/2009 | The learning stage rating is available now. |
| 05/09/2009 | The testing system and demo-test on Transact-SQL are available now. |
| 12/13/2008 | Recent activity of leaders of the rating system (taken tasks and solved exercises within last two weeks) you can see at leaders page. |
| 11/14/2008 | Tips system has been launched in help of solution of exercises. |
| 10/09/2008 | The new resource - Interactive textbook on SQL - is opened. |
| 05/30/2008 | Exercises voting is a new service that appeared on the site. You can estimate any task of second/third stage by 10-point scale now. |
| 03/22/2008 | On the page of Rating of second-stage exercises the list of those who have begun the solving an exercise can be seen. Similar functionality was done on statistics' page . You can get list of professionals in a given geographical location. |
| 02/16/2008 | The last news letter is on the site now. |
| 01/23/2008 | Statistics page for certificated professionals was added; you can see distribution over ages and regions. |
| 11/21/2007 | The learning stage for beginners is started. The page with exercises on SELECT statement and a corresponding forum is already accessible. |
| 08/10/2007 | Rating page for authors of second-stage exercises is added. |
| 07/06/2007 | Updating of the forum. New features: - Editing and removal of messages; - A prompt reply with citing. |
| 12/18/2006 | Some intellect was added to script text area in the exercise page. Select the "Autoreplace" checkbox for inserting the sql keywords and table/column names. |
| 09/09/2006 | Third testing stage was started with exercise #139 |
| 07/09/2006 | Feedback page of visitors and participants of rating system about the site is added. |
| 05/13/2006 | The page with the chart of the results shown by participants while solving the exercises on the second stage (SELECT) is added: chart.php . It is possible to compare your results with the results of other participants. |
| 04/08/2006 | The book "SQL. Problems and solutions" (in Russian), which is analyzing the characteristic mistakes admitted at the solution of the first stage exercises on the site, was published in Peter Publishing Company. . |
| 03/22/2006 | New navigation over forum is realized. |
| 03/05/2006 | The new resource is opened. Besides other, the analysis of typical mistakes is published there for the first stage exercises. |
| 12/09/2005 | Checking exercises on independent data is realized, i.e. for each exercise now there is an opportunity to create own checking database. It allows to carry out check of correctness of the solutions more effectively. |
| 09/11/2005 | The page of a comparative cost estimation of the query execution plan for solutions to the exercises of the testing's second stage is added. |
| 03/25/2005 | Certified professionals' page is added. |
| 09/19/2004 | We started posting news of our site (in Russian) on Subscribe.Ru |
| 09/08/2004 | Now you can experience yourself in solving the exercises on other data manipulation operators (INSERT, UPDATE, DELETE). |
| 03/05/2004 | Today statistics page is added. |
| 02/24/2004 | Olympic rating results are added. |
| 11/27/2003 | Participant photos are now on the personal page along with the page of top 10 results. |
| 11/20/2003 | Personal page now shows the time spent for solution of each 2nd-stage exercise. |
| 11/07/2003 | The page of 2nd-stage exercises ordered by difficulty is added. |
| 08/18/2003 | The forum intended for discussion of the exercises is in the site now. |
| 06/08/2003 | Now anyone can get its query script for any previously solved exercise. |
| 05/17/2003 | Last-week rating results are added. |
| 04/14/2003 | The FAQ page and personal page are added. The 2nd-stage rating is introduced. |
| 02/17/2003 | The teaching DB schemas are added. |
| 12/15/2002 | SQL DML reference guide is added. |
| 09/09/2002 | Publication of this site. |