[Note from Pinal]: This is a new episode of Notes from the Fields series. AlwaysOn is a very complex subject and not everyone knows many things about this. The matter of the fact is there is very little information available on this subject online and not everyone knows everything about this. This is why when a very common question related to AlwaysOn comes, people get confused. Let us learn about Planned and Unplanned Availablity Group Failovers.
SQL SERVER – Contest Winner – What Next on SQL in Sixty Seconds – Poll Result
A few days ago, I have asked a question on this blog. The question was – What would you like to see in the next episodes of SQL in Sixty Seconds. The poll is still active and posted over here: SQL SERVER – Poll – What would you love to see in SQL in Sixty Seconds? The contest was to suggest the next item of SQL in Sixty Seconds and vote for the your choice of subject. There have been plenty of votes to this contest, however, there were only 4 comments to this blog post. Hence, selecting a winner was very simple.
SQL SERVER – Repair a SQL Server Database Using a Transaction Log Explorer
In this blog, I’ll show how to use ApexSQL Log, a SQL Server transaction log viewer. You can download it for free, install, and play along. But first, let’s describe some disaster recovery scenarios where it’s useful.
SQL SERVER – Iridium I/O – SQL Server Deduplication that Shrinks Databases and Improves Performance
Database performance is a common problem for SQL Server DBA’s. It seems like we spend more time on performance than just about anything else. In many cases, we use scripts or tools that point out performance bottlenecks but we don’t have any way to fix them. For example, what do…
Read MoreSQL SERVER – Faster SQL Server Databases and Applications – Power and Control with SafePeak Caching Options
Update: This blog post is written based on the SafePeak, which is available for free download. Today, I’d like to examine more closely one of my preferred technologies for accelerating SQL Server databases, SafePeak. Safepeak’s software provides a variety of advanced data caching options, techniques and tools to accelerate the…
Read MoreDeveloper’s Life – Every Developer is a Superman
I enjoyed comparing developers to Spiderman so much, that I have decided to continue the trend and encourage some of my favorite people (developers) with another favorite superhero – Superman. Superman is probably the most famous superhero – and one of the most inspiring.
MySQL – Introduction to User Defined Variables
MySQL supports user defined variables to have some data that can be used later part of your query. You can save a value to a variable using a SELECT statement and later you can access its value. Unlike other RDBMSs, you do not need to declare the data type for…
Read MoreSQL SERVER – Merge Two Columns into a Single Column
Here is a question which I have received from user yesterday. Hi Pinal, I want to build queries in SQL server that merge two columns of the table If I have two columns like, Column1 | Column2 1                5 2                6 3                7 4                8 I want to output like, Column1…
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SQL SERVER – Parsing SSIS Catalog Messages – Notes from the Field #030
[Note from Pinal]: This is a new episode of Notes from the Field series. SQL Server Integration Service (SSIS) is one of the most key essential part of the entire Business Intelligence (BI) story. It is a platform for data integration and workflow applications. The tool may also be used…
Read MoreSQL SERVER – Take the Quiz for a chance to win a Quadcopter Drone – Brain Teasers
It has been a long time since we ran quiz. So let us get ready for a quiz. The quiz has two parts. You have to get both the parts correct to win Quadcopter with Camera (we will call it drone). We will be giving away a total of 2…
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