XQuery is a query language for XML. XML is a markup language that provides software and hardware-independent way of storing, transporting, and sharing data. In this case, XML documents are stored in a SQL Server database. XQuery is used to manipulate, find and extract information stored in the XML format. It’s analogous to SQL for databases.
Read more »
This article explores estimating the AWS RDS SQL Server cost so that you can plan resources accordingly.
Read more »
SQL cursor is one of the most popular database objects. It is used to retrieve data from the result set of an SQL query one row at a time. Even if the cursor is not recommended from a performance perspective, they are still widely used especially when handling a small amount of data.
Read more »
One of the most important things in databases is to understand the types of relations in the databases. That stands for both – a process of designing a database model as well as when you’re analyzing your data. Understanding these relations is somehow natural and not so complex but is still essential in the database theory (and practice).
Read more »
In this article, I am going to explain step by step process to perform Database Mail configuration in SQL Server Express edition using the T-SQL script. As we know, SQL Server Express edition does not provide the SQL Server Agent Services; hence we cannot perform Database Mail configuration or SQL Jobs or maintenance plans using SQL Server Management Studio. To configure the Database Mail feature in the SQL Server Express edition, we must use CLR integration or using stored procedures within the MSDB database.
Read more »
In this article, we will describe the relation between the Set Theory and SQL Server Set Operations
Read more »
I can hardly imagine making any complex database changes without using SQL scripts. We actually used them in this series so far, but we haven’t pointed out what they actually are. Today we’ll stand up against that injustice. Sit back, relax, and get ready to learn something new and useful.
Read more »
In this article, I am going to explain how we can use the SQL Server Express edition for the SQL witness server of the database mirroring setup. Database mirroring is a cost-effective and easy to configure high availability solution. Unfortunately, this feature has been deprecated, but still, some organizations use database mirroring as a high availability solution.
Read more »
This article explores the server and database audit in AWS RDS SQL Server.
Read more »
In this article, I am going to explain how to install the SQL Server Express edition. We will download the SQL Server 2017 Express edition and perform the custom installation. Before we dive-in into the installation and configuration process, let me introduce you to the SQL Server Express edition.
Read more »
This article explores the process of JSON data import in the SQL Server table using T-SQL and SSIS.
Read more »
This article installs PostgreSQL on Ubuntu 16.4 operating system and connects the database using Azure Data Studio.
Read more »
INNER JOIN vs LEFT JOIN, that is the question. Today, we’ll briefly explain how both of these two join types are used and what is the difference. We’ll go through this topic again later when we’ll expand our model and be able to write much more complex queries.
Read more »
This article gives an introduction of the non-clustered index in SQL Server using examples.
Read more »
SQL Express is a free and feature-limited edition of SQL Server that has been being published since the SQL Server 2005 version and it still continues to be published by Microsoft. Nowadays, Microsoft has released the Express edition of SQL Server 2019. We can use this edition for lightweight data-driven mobile, desktop or web applications. However, when we decide to use this edition, the supported features have to be checked in the Editions and supported features of SQL Server 2019. For example, the database size can not exceed 10 GB and the SQL Server Agent feature is not supported by the Express editions. As a result, we must take the limited features into consideration before planning to use the SQL Express Editions.
Read more »
This article gives an overview of column level SQL Server encryption using examples.
Read more »
In this article, I am going to explain how we can transfer logins to the secondary replica of the Always On availability group using sp_help_revlogin and Transfer Logins Task of the SQL Server Integration Services package.
Read more »
This article explores different ways to generate data scripts using Azure Data Studio and SQL Server Management Studio.
Read more »
In this article, we will explore the syntax, working mechanism and other details of the CONCAT function in SQL and we will also make up various different examples about it.
Read more »
In this article, we will discuss the most important points that we should consider when designing an optimal SQL index. Before going through the index design procedure, let us revise the SQL Server index concept.
Read more »
This article is a supplement to the previously published article, An overview of SQL String Functions . This time, we will describe another bunch of SQL string functions used in SQL Server.
Read more »
In this article, we will discuss the best practices that should be followed in order to keep the TempDB database in a healthy state and prevent any unexpected growth of the database, in addition to the procedure that can be followed to detect this unexpected growth once occurred.
Read more »
The SELECT statement is probably the most important SQL command. It’s used to return results from our database(s) and no matter how easy that could sound, it could be really very complex. In this article, we’ll give an intro to the SELECT statement and we’ll cover more complex stuff in the upcoming articles.
Read more »
One of the most asked questions is how to link an OLAP cube with a relational database, or in another way how to join the result of an MDX query with a table stored in a relational database.
Read more »
The SQL CREATE INDEX statement is used to create clustered as well as non-clustered indexes in SQL Server. An index in a database is very similar to an index in a book. A book index may have a list of topics discussed in a book in alphabetical order. Therefore, if you want to search for any specific topic, you simply go to the index, find the page number of the topic, and go to that specific page number. Database indexes are similar and come handy. Particularly, if you have a huge number of records in your database, indexes can speed up the query execution process. There are two major types of indexes in SQL Server: clustered indexes and non-clustered indexes.
Read more »© Quest Software Inc. ALL RIGHTS RESERVED. | GDPR | Terms of Use | Privacy