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Data Analyst portfolio project that deals with business KPIs, cleaning and transforming data and visualizing it to create a dashboard. The tools used are: SQL Server, T-SQL, Excel and Power BI.

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AsifRashid01/SalesAnalysis_SQL_PowerBI

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SalesAnalysis_SQL_PowerBI

Setup

  • This project requires SQL Server (SQL Express), Power BI Desktop
  • We will work with backup Data Warehouse (DW) data and Lightweight (LT) data. Obtain data and restore following instructions from here.
  • Compare DW and LT data to understand the difference between structured and unstructured data. We will primarily be working with Data Warehouse data.
  • Update Data Warehouse data using sql script.

Business Request & User Stories

  • Read the sample business request, demand overview & filled-out user stories to understand the problem we are trying to solve with Data Analysis and what we consider as a solution.

Clean the Data using T-SQL

  • Understand the difference between FACT tables & Dimension tables.
  • Identify which tables in the data are of interest with the help of the Business Request form.
  • Choose which columns are of interest to export by preparing and transforming these columns in SQL using concepts such as: renaming columns, combining columns, commenting in SQL script, formatting of SQL statements, WHERE clause, ORDER BY, LEFT JOIN, CASE() function and ISNULL() function.

Create Dashboard in Power BI

  • Load Data
  • Organize & Prepare Tables
  • Connect Tables for Data Model
  • Import Fact_Budget
  • Calculation Measures
  • Dashboard Design
  • Import Custom Visual
  • Measure Table
  • Pie Chart
  • Line Chart
  • Bar Charts
  • Map Graph
  • Top 10 Graphs
  • Gradient Bar Chart Color
  • Customer Details
  • Pivot Table

Dashboard

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Data Analyst portfolio project that deals with business KPIs, cleaning and transforming data and visualizing it to create a dashboard. The tools used are: SQL Server, T-SQL, Excel and Power BI.

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