https://github.com/fazal-coder/sql_nashville_housing

SQL Project in MS SQL Server About Nashville Housing
https://github.com/fazal-coder/sql_nashville_housing

microsoft-sql-server mssqlserver sql-server

Last synced: 2 days ago
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SQL Project in MS SQL Server About Nashville Housing

• Host: GitHub
• URL: https://github.com/fazal-coder/sql_nashville_housing
• Owner: fazal-coder
• Created: 2023-08-30T20:15:43.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-08-30T20:44:47.000Z (over 1 year ago)
• Last Synced: 2025-01-18T13:55:54.652Z (2 days ago)
• Topics: microsoft-sql-server, mssqlserver, sql-server
• Language: TSQL
• Homepage:
• Size: 5.65 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# SQL Nashville Housing

This section involves various data cleaning tasks for the  `Nashvillahousing` table.

- **Standardize Date Format:** Converts the SaleDate column to a standardized date format using CAST.

- **Populate Property Address Data:** Fills in missing PropertyAddress values by joining the table with itself based on `ParcelID` and copying non-null addresses.

- **Breaking out PropertyAddress:** Splits the `PropertyAddress` column into `Address` and `City` using `SUBSTRING` and `CHARINDEX`, and stores them in new columns.

- **Breaking out OwnerAddress:**  Similar to above, splits `OwnerAddress` into individual components (`OwnerAddress`, `OwnerCity`, `OwnerState`) using `PARSENAME` and `REPLACE`, and stores them in new columns.

  

- **Change Y and N to Yes and No:** Converts values in the `SoldAsVacant` column from 'Y' to 'Yes' and 'N' to 'No'.

- **Remove Duplicates:** Utilizes a Common Table Expression (CTE) with `ROW_NUMBER()` to identify and remove duplicate rows based on certain columns.

- **Delete Unused Columns:** Drops specified columns (`OwnerAddress`, `TaxDistrict`, `PropertyAddress`, `SaleDate`) from the table.

*Repository created by [Diyan].*