This repository contains multiple SQL projects demonstrating practical applications of SQL concepts. Each project is organized into separate .sql files for clarity.
-
Views
- Creating virtual tables to summarize data.
- Example: Summarizing table information or metrics.
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Stored Procedures
- Dynamic queries using input parameters.
- Example: Fetching data based on a date range or user input.
-
Joins
- Combining multiple tables for detailed analysis.
- Example: Merging data from different sources to generate insights.
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Set Operators
- Using
UNION,INTERSECT, andEXCEPTto compare datasets and merge results.
- Using
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Subqueries
- Nested queries for filtering, comparison, and advanced calculations.
-
Aggregation
- Using
SUM,AVG,COUNTwithGROUP BYto summarize data.
- Using
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Window Functions
- Using
ROW_NUMBER,RANK,SUM() OVER()for running totals, rankings, and other advanced analytics.
- Using
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Indexes
- Optimizing query performance on frequently accessed columns.
- Clone or download the repository.
- Open the relevant
.sqlfile in your SQL environment (SQL Server Management Studio or similar). - Run the queries in sequence or as needed.
- Modify parameters in stored procedures or queries to match your dataset.