In the previous articles of this series, we went through three sets of SQL Server Execution Plan operators that you will meet with while working with the different Execution Plan queries. We described the Table Scan, Clustered Index Scan, Clustered Index Seek, the Non-Clustered Index Seek, RID Lookup, Key Lookup, Sort, Aggregate – Stream Aggregate, […]
In the previous articles of this series, we discussed a group of SQL Server Execution Plan operators that you will face when studying the SQL Execution Plan of different queries. We showed the Table Scan, Clustered Index Scan, Clustered Index Seek, the Non-Clustered Index Seek, RID Lookup, Key Lookup and Sort Execution Plan operators. In […]
In the previous article, we talked about the first set of operators you may encounter when working with SQL Server Execution Plans. We described the Non Clustered Index, Seek Execution Plan operators, Table Scan, Clustered Index Scan, and the Clustered Index Seek. In this article, we will discuss the second set of these SQL Server […]
This article on the SQL Delete is a part of the SQL essential series on key statements, functions and operations in SQL Server.
In the previous article of the series, we took an overview of PolyBase in SQL Server 2017. We also learned about the Azure Data Studio and SQL Server 2019 preview extension to explore SQL Server 2019 features.
This article will provide a review of SQL code formatting using the SQL formatter options in SSMS Nobody likes to read a large amount of text, even when it’s just a plain one. When reading SQL script where there is a large amount of non-formatted SQL code, the problem becomes even bigger.
Microsoft released preview of SQL Server 2019 recently in Ignite 2018. With every release of SQL Server is enriched with new dynamic management view and functions along with enhancements to existing features. In this article, we will view the newly introduced dynamic management function (DMF) sys.dm_db_page_info and explore the different scenarios around it.
In this article, we are going to learn how to use the SQL LIKE operator, in SQL Server, using regular expressions to find and/or manipulate text. We will start by learning the symbols and basic syntax of using wildcard regular expressions. We will use character sets and repetition expressions to create flexible matching patterns, and […]
This article explores the string manipulation using SQL Coalesce function in SQL Server. String manipulation is a process to generate another form of existing data in a way the business uses or displayed as results in the reports. Previous SQL string function articles, I have written, including SQL string functions for Data Munging and SQL […]
In the other article in this series: Deploy SQL Server for failover clustering with Cluster Shared Volumes – part 1 we have seen what a cluster shared volume is and what are the advantages and other considerations to keep in mind when deploying CSVs for SQL Server workloads. In this article, I will walk though […]
Twitter is a very popular social media platform which generates millions of tweets a day. These tweets include very valuable data for marketers or social media analyzers because they can analyze these tweets with specific algorithms and find out the sense of social media users.
Azure Data Studio is a new GUI based tool that works on Windows, Mac OS and Linux operating systems. It connects to SQL Server, Azure database, and SQL DW.
As developers of business intelligence solutions, we tend to service different types of business users. Whilst a call center supervisor is more likely to consume reports that offer detailed breakdown of day-to-day performance of her call center agents, senior managers on the other hand often prefer big-picture analytical reports that represent data in a form […]
This collection of content presents an overview of top SQL Server database auditing tools, with product page links for each of the tools and screenshots if available. If you noticed a tool we missed, please let us know in the comments below. All database auditing tools are sorted by alphabetical order.
The requirement of data refactoring is very common and vital in data mining operations. In the previous article SQL string functions for Data Munging (Wrangling), you’ll learn the tips for getting started with SQL string functions, including the substring function for data munging with SQL Server. As we all agree that the data stored in […]
In this article, you’ll learn the tips for getting started using SQL string functions for data munging with SQL Server. In many cases, Machine learning outcomes are only as good as the data they’re built on – but the work of preparing data for analytics (that is, data wrangling) can eat up as much as 80% […]
A workload management is considered as a critical aspect of SQL Server transactional replication. Replication is the oldest of the high availability technologies in SQL Server and it is available since the inception of SQL Server. As a very mature technology, SQL Server transactional replication is also very robust and, in most cases, very straightforward […]
In the previous articles of this series, SQL Server Execution Plans overview , SQL Server Execution Plans types and How to Analyze SQL Execution Plan Graphical Components, we discussed the steps that are performed by the SQL Server Relational Engine to generate the Execution Plan of a submitted query and the steps performed by the SQL Server […]
This is article is a continuation of the previous: SQL Server replication: Overview of components and topography. By now, you’re familiar with the components of replication. So far, we’ve seen a lot of theory about replication. It’s a time for practical walkthrough of setting up a basic transactional SQL Replication system. The best way to […]
In this data-driven era, replication is often a critical requirement for achieving a modern, agile database management environment. It is believed designing an enterprise-grade dataset is the to achieving this requirement but building datamarts from datasets always presents certain challenges In this article, we’ll discuss what it takes to setup “central subscriber with multiple publishers” […]
Over the past three years, I read some interesting news about Microsoft which was “Microsoft acquires mobile business intelligence leader Datazen”. This news made me excited because showing Reporting Service reports in mobile devices can be painful and often not effective for end users. After this acquisition, Microsoft developers worked quickly to adapt the Datazen […]
Deleting or changing objects may affect other database objects like views or procedures that depends on them and in certain instances, can “break” the depending object. An example can be that if a View queries a table and the name of that table changes. The View will no longer function.
If SQL Server needs to allocate space, first it fills the space it needs with zeros. Examples of when it needs to allocate space are creating/restoring a database, growing/allocating data and log files, and finally the troublesome auto growth operation. However, most of these slowdowns/long running actions can be improved by enabling instant file initialization. […]
Bringing impactful analysis into a data always comes with challenges. In many cases, we rely on automated tools and techniques to overcome many of these challenges.
In this article, you’ll learn how to setup a simple, custom distributed database replication system. Introduction In general, a typical setup of transactional replication model of a central publisher with multiple subscribers includes the creation of a replica database(s) which may serve multiple purposes including:
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