In this article, we will talk about SQL interview questions and answers that can be asked in the second-round technical stage. These interview questions are based on real-life experiences. Therefore, it can be a very useful source when preparing for the second round of SQL technical interviews.
This article guides you through importing XML documents into SQL tables using SSIS packages.
In the previous article, Learn SQL: SQL Server Pivot Tables, we’ve discussed how to create a report using a PIVOT table query. We’ve created such a report directly in the SQL Server. In this article, we’ll do the same, but this time we’ll use SQL Server export to Excel. So, let’s start.
In this article, we will be discussing how Text Mining can be done in SQL Server. For text mining in SQL Server, we will be using Integration Services (SSIS) and SQL Server Analysis Services (SSAS). This is the last article of the Data Mining series during which we discussed Naïve Bayes, Decision Trees, Time Series, […]
The Report View in Power BI can be used to create beautiful visualizations in Power BI.
Microsoft Power BI supports two different languages, M language and DAX (Data Analysis Expression) that can be used to filter, manage, and visualize data.
In this article, I am going to explain the MySQL CREATE TABLE statement with examples. The following syntax contains basic statements to create a table in MySQL.
In this article, we will learn latch contention issues that we might experience in the SQL Server TempDB database. We will also discuss reasons and the solution method of these latch contention issues. Especially, we will mention the Memory-Optimized TempDB Metadata feature that was introduced with the SQL Server 2019.
In this article, we will explore charts in an Azure Data Studio using data stored in SQL Server tables.
In this article, I am going to explain different ways to generate the backup in the MySQL database server. As we know, data is a valuable asset to the organization. As database administrators, it is our primary and crucial job to keep the data available and safe. If the system or data center fails, database […]
In the previously published article, we talked briefly about Hadoop, and we gave an overview of the SSIS Hadoop components added in the SQL Server 2016 release, and we focused on the Hadoop connection manager and the Hadoop file system task.
In the previous few articles in this series, we’ve set the foundations on how to create a report. We’ll take one step further and see how to use the SQL Server PIVOT table operator. We’ll start from the simple query and slowly progress towards dynamic SQL and PIVOT. Let’s start.
Introduction Lever T-SQL to handle duplicate rows in SQL Server database tables article highlighted T-SQL features that detect and handle duplicate SQL Server table rows. The techniques work well, but they rely on fixed duplicate row definitions. This article extends those techniques, showing how to define duplicate rows in a dynamic way.
In the previous two articles of this series, we’ve discussed how to create a report and how to use built-in date and time functions. Today, we’ll join these two together and analyze some interesting queries we could use while creating more complex SQL Server reports where date and time functions are used to create reporting […]
In this article, we will continue to learn essential techniques of the SQL Server query tuning with practical examples.
In this article, I am going to explain how we can deploy the MySQL InnoDB cluster. InnoDB Cluster is a high availability solution provided by MySQL that has single and multi-master capabilities and failover detection.
This is a conceptual article consisting of two parts with enough supported material for any data professional or enthusiast with databases or data warehouse development background willing to go a step ahead by using an industry-recognized SQL unit testing framework called tSQLt.
This article will cover the usage details and performance advantages of the memory-optimized table variables.
In this article, we will discuss a number of questions that you may be asked when applying to a junior SQL Server database administrator (DBA) position.
This article explores JSON_MODIFY() function to modify JSON Data in the SQL Server.
In this article, we will learn different methods that are used to update the data in a table with the data of other tables. The UPDATE from SELECT query structure is the main technique for performing these updates.
Duplicate rows in a SQL Server database table can become a problem. We will see how we can find and handle those duplicate rows using T-SQL in this article.
This article will cover some essential techniques for SQL query tuning. Query tuning is a very wide topic to talk about, but some essential techniques never change in order to tune queries in SQL Server. Particularly, it is a difficult issue for those who are a newbie to SQL query tuning or who are thinking […]
So far, we haven’t talked about SQL Server date and time functions. Today we’ll change that. We’ll take a close look at the ones most frequently used and mention all other date and time functions as well. This will be also the first step to create reports, including date and time functions. We’ll do that […]
In this article, I’m going to talk in detail about the moving average in SQL and how to find out the same in Power BI and Excel. This might be a new topic for many newbies who have started out in this field, but I’m sure this will help anyone who is trying to work […]
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