what is Data cleaning and standardisation? why we need it?

As businesses generate and accumulate large amounts of data, it becomes a herculean task to remove unwanted or inaccurate data. While modifying such data sets requires effort, identifying and removing them are not easy either. Data cleaning identifies incorrect data and modifies it according to requirements. Data that is cleaned will then need to be transformed into a standard…

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Pivot and Unpivot columns

In PowerBI there is a nifty trick where you can pivot or unpivot your data in the Query Editor. This saves you from having to do this in SQL or which ever source you are using for your data. There are just 4 simple clicks to pivot your data! First you need to select the column you want to…

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SQL Server Functions

SQL Scalar functions UCASE() – Converts a field to upper case LCASE() – Converts a field to lower case MID() – Extract characters from a text field LEN() – Returns the length of a text field ROUND() – Rounds a numeric field to the number of decimals specified NOW() – Returns the current system date and time FORMAT() –…

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Stored Procedure – with example

What is Stored Procedure? A stored procedure is a prepared SQL code that you can save, so the code can be reused over and over again. So if you have an SQL query that you write over and over again, save it as a stored procedure, and then just call it to execute it. You can also pass parameters…

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SSRS – Introduction

SQL Server Reporting Services(SSRS) is a solution that customers deploy on their own premises for creating, publishing, and managing reports, then delivering them to the right users in different ways, whether that’s viewing them in web browser, on their mobile device, or as an email in their in-box. How does SSRS work? Below is the reporting life cycle follow by…

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SSIS – Introduction

SQL Server Integration Services (SSIS) is a component of the Microsoft SQL Server database software that can be used to perform a broad range of data integration and data transformation tasks. It is basically an ETL tool part of the Microsoft Business Intelligence suit that is mainly used to achieve Data Integration. What is Data Integration ? Data integration…

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