This article will make you learn the Postgres Coalesce command with examples.
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Learn SQL standard deviation function
January 17, 2023This article will show the SQL standard deviation function with several examples.
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Getting started with SQL LIMIT clause
January 13, 2023Today, I am going to explain how to use the SQL LIMIT clause to limit output values. We all know RDBMS systems are one of the popular ways to store, protect, access, and analyze data in a structured way. We can store enormous sizes of data and then further can access them with the help of SQL language to get our desired output to analyze it. SQL stands for Structured Query Language which is used to perform activities like creating, modifying, and accessing data from the databases hosted on RDBMS systems like SQL Server or MySQL, etc. This article will explain one of the SQL query statements LIMIT which we use to limit the number of records returned in the output result.
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How to create Power BI reports
January 11, 2023In this article, we will learn how to create Power BI Reports. This article is created for newbies to start the Power BI world with a simple example. We will connect to SQL Server, show how to transform data from SQL Server in Power BI, and then we will create some reports, and play with the options available in Power BI.
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Common SQL Interview Questions and Answers
January 6, 2023If you are working on SQL programming or learning SQL or how to write queries and looking to test your knowledge or prepare for any SQL interview, the below article can help you.
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Overview of the SQL Median function
January 4, 2023In this article, we will learn how to implement the median functionality and wrap it into a SQL median function
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SQL Subtract Dates with Examples
January 2, 2023SQL Server provides various dates and time functions for different needs. In this article, we will focus on SQL subtract date functions with various examples.
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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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An overview of the SQL GROUP BY clause
December 28, 2022This article briefly explains the SQL group by clause, when it should be used, and what we should consider when using it.
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Understanding the difference between SQL and MySQL
December 26, 2022This article will explain the difference between SQL and MySQL. Many people get confused between several database terms like SQL, MySQL, SQL Server, or other SQL-related phrases. If you are a database professional, then you should be aware of the difference between SQL and MySQL or other phrases which have SQL words included like PostgreSQL, Cloud SQL, TSQL, etc. Most of these terms are divided between a query language and database software like TSQL and SQL are query languages whereas MySQL, SQL Server, and PostgreSQL are database software.
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SQL Server Tutorial
December 23, 2022This article is a SQL Server Tutorial. If you want to learn how to install and start with SQL Server from 0, this is the place to start. We will teach you to install SQL Server, start your first queries, and explain the basics to start with SQL Server Integration Services (SSIS), SQL Server Reporting Services (SSRS), SQL Server Analysis Services (SSAS), Data Quality Services (DQS), Master Data Services (MDS) and Azure and more.
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Use of the RESTORE FILELISTONLY command in SQL Server
December 21, 2022This article explores the RESTORE FILELISTONLY command in SQL Server with examples.
Introduction
Performing a database backup is an integral part of a DBA’s job. Backups are taken to ensure that data can be recovered in an emergency. There are different restore mechanisms, and the SQL Server DBA needs to understand them to make the right decision in each situation.
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Python serverless functions to query Azure SQL DB
December 19, 2022This article will show how to get data from Azure SQL in the Serverless Python app.
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The difference between WHERE and HAVING clause in SQL
December 16, 2022This article aims to explain the WHERE, GROUP By, and HAVING clauses in detail. Also, we will see the difference between WHERE and HAVING with examples.
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How to add or subtract dates in SQL Server
December 15, 2022This article explores SQL Server functions to add or subtract dates in SQL Server.
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Understanding the SQL SUM() function and its use cases
December 13, 2022Today, I will describe the SQL SUM () function along with its use cases in this article. There are various mathematical calculations we need to do in day-to-day business requirements. SQL Server offers various system functions which I have listed below to get these mathematical calculations easily by using them. One such requirement is to get the sum of values stored in a numeric column. We can use SQL Server system function SUM () to easily get the sum of the values stored in a numeric column of the table.
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Why do we need Correlated Subqueries in SQL
December 9, 2022This article speaks about correlated subquery and why we need it when querying a SQL database.
Additionally, we are going to understand the difference between simple subqueries and correlated subqueries with the help of some easily understandable examples.
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Understanding business continuity solutions for Azure SQL PaaS services
December 7, 2022This article will explain various business continuity options available for Azure SQL PaaS services (SQL databases and SQL managed instances). Today we will learn about several options so that you can choose a suitable business continuity solution for your SQL databases provisioned in the Azure cloud.
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Implementing Row-Level Security in Azure Synapse Serverless SQL pools using TSQL
December 5, 2022Row Level Security is a very key requirement for most database or data lake applications. Most of the databases are having natively build row-level security but Synapse serverless SQL pool doesn’t support this inbuilt functionality. In this article, we will see how to implement it.
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PostgreSQL Join overview with examples
December 2, 2022In this article, we will learn about different types of PostgreSQL joins with examples.
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Control Retention of items using TTL in Azure Cosmos DB
November 30, 2022This article will provide a detailed walkthrough for retaining items in Cosmos DB for different durations and on different levels.
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SQL Boolean Tutorial
November 28, 2022The SQL Boolean data type is not included in SQL Server. Other databases like Oracle and MySQL include the Boolean data type that accepts the values of TRUE, and FALSE.
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Different SQL TimeStamp functions in SQL Server
November 25, 2022This article will show different SQL timestamp functions available with examples.
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INT vs BIGINT in SQL Server with Examples
November 22, 2022SQL Server provides int, bigint, smallint and tinyint data for storing exact-number data. In this article, we will focus on int and bigint data types.
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Using parameterized queries to avoid SQL injection
November 18, 2022In this article, we will explain what the SQL injection attack is, why it could be hazardous, and how to defend our SQL database from this attack using parameterized queries and some third-party tools.
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