In this article, we are going to make a SQL practice exercise that will help to prepare for the final round of technical interviews of the SQL jobs.
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Query analysis
5 Best Practices for writing SQL queries
December 30, 2022In this article, we are going to learn some best practices that help to write more efficient SQL queries.
Introduction
Queries are used to communicate with the databases and perform the database operations. Such as, we use the queries to update data on a database or retrieve data from the database. Because of these functions of queries, they are used extensively by people who also interact with databases. In addition to performing accurate database operations, a query also needs to be performance, fast and readable. At least knowing some practices when we write a query will help fulfill these criteria and improve the writing of more efficient queries.
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How to build custom widgets on Azure Data Studio
July 7, 2022In this article, we will learn how to build a customized widget in Azure Data Studio that helps to monitor the performance metrics.
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How to obtain SQL Execution Plans using different methods
June 30, 2022In this article, we will learn various methods of how to get an SQL execution plan of a query.
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How to overcome parameter sniffing problems in ad-hoc queries
June 17, 2022The purpose of this article is to provide insights into how parameter sniffing occurs for an ad-hoc query and how it affects their performance.
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Unrevealed tips of SQL Server Statistics
June 13, 2022In this article, we will explore some internal working principles of SQL Server statistics.
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SQL Server statistics from a different perspective
June 10, 2022The goal of this article is to throw light on the less-known points about SQL Server statistics.
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Microsoft SQL Server Trace Flags and usage details
April 13, 2022In this article, we will explore Microsoft SQL Server trace flags with all aspects, and we will learn also how to use them.
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5 reasons to consider on your Query Performance degradation
April 7, 2022This article gives fundamental insights into which 5 reasons can cause to drop off the query performances in SQL Server.
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SQL Server Database Parameterization option and its Query Performance effects
February 18, 2022The goal of this article is to give details about the database query parameterization feature and explain its effects on query performance.
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SQL Server Trivial Execution Plans
February 3, 2022In this article, we will go through the details of the trivial execution plans and we will also tackle some examples about the trivial plans to explore effects on query performance.
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Behind the scenes of the SQL Delete Statement
January 31, 2022In this article, we will explore the details of what happens behind the scenes when a SQL delete statement is executed.
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SQL Update statement Performance Tips
December 7, 2021The SQL update statement is used to modify an existing record or records in a table and it is commonly widely used in databases applications. In this article, we will examine the update statement in terms of the performance perspective.
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SQL Server Trace Flags and how they impact the SQL Server Query Optimizer behavior
December 2, 2021In this article, we will learn some query hints and trace flags that impact the query performance and also influence the SQL Server query optimizer’s default execution plan generation algorithm.
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SQL TOP statement performance tips
November 9, 2021In this article, we will discuss the performance details of the SQL TOP statement, and we will also work on a performance case study.
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Using SQL Server Extended Events to monitor query performance
November 1, 2021In this article, we will explore how we can use SQL Server extended events to monitor query performance in SQL Server.
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Monitoring SQL Server blocking problems
October 12, 2021In this article, we will learn how to monitor SQL Server blocking issues with different methods.
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SQL Server Stored Procedure Recompile Options
September 15, 2021This article intends to give comprehensive details on how we can use the recompilation options of SQL Server stored procedures and how they behave when we use these recompilation options.
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SQL Server Stored Procedure Recompilation Factors
September 6, 2021In this article, we will explore in detail the factors that cause SQL Server stored procedures to be recompiled.
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SQL Query recompilations and query performance effects
September 1, 2021This article will mention in which conditions the query optimizer decides to recompile to queries and how it affects the SQL query performance.
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Internals of Physical Join Operators (Nested Loops Join, Hash Match Join & Merge Join) in SQL Server
August 30, 2021Introduction
There are three types of physical join operators in SQL Server, namely Nested Loops Join, Hash Match Join, and Merge Join. In this article, we will be discussing how these physical join operators are working and what are the best practices for these different joins.
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Fundamentals of SQL Server Statistics
August 27, 2021In this article, we will take a glance at the fundamentals of SQL Server statistics and discover their interaction with the query processing steps with simple examples.
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Deep Dive into SQL Server Statistics
August 23, 2021In this article, we will go through some details about SQL Server statistics.
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Usage details of the SET STATISTICS TIME ON statement in SQL Server
June 14, 2021With the help of the SET STATISTICS TIME ON statement, we can easily report the execution time statistics of a query. In this article, we will learn how to report the query execution time statistics through this statement.
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SQL Server Deadlocks with Foreign Keys
May 27, 2021In this article, we will try to find out the answer to the question of “Does a foreign key lead to a deadlock?”
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