https://github.com/mennasayed46/c43_g01_db07
A set of SQL problem-solving tasks
https://github.com/mennasayed46/c43_g01_db07
sql sql-database sql-problem-solving sql-problems sql-server sql-server-management-studio sql-stored-procedures sql-tasks sql-triggers
Last synced: 5 months ago
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A set of SQL problem-solving tasks
- Host: GitHub
- URL: https://github.com/mennasayed46/c43_g01_db07
- Owner: MennaSayed46
- Created: 2025-07-08T23:20:08.000Z (6 months ago)
- Default Branch: main
- Last Pushed: 2025-07-17T18:01:43.000Z (5 months ago)
- Last Synced: 2025-07-17T20:42:50.478Z (5 months ago)
- Topics: sql, sql-database, sql-problem-solving, sql-problems, sql-server, sql-server-management-studio, sql-stored-procedures, sql-tasks, sql-triggers
- Language: TSQL
- Homepage:
- Size: 116 KB
- Stars: 0
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# SQL Server Project – Stored Procedures & Triggers
## 📁 Databases Used:
- `ITI`
- `MyCompany`
- `IKEA_Company`
---
## ✅ Part 01 – Stored Procedures
### 1. [ITI DB] Show Number of Students per Department
Create a stored procedure to display the number of students in each department.
### 2. [MyCompany DB] Check Employees in Project 100
- If number of employees ≥ 3 → Display: `"The number of employees in the project 100 is 3 or more"`
- If less → Display: `"The following employees work for the project 100"` + list of their first and last names
### 3. [MyCompany DB] Replace an Employee in a Project
Create a stored procedure that accepts:
- Old Employee Number
- New Employee Number
- Project Number
The procedure updates the `Works_On` table to reflect the replacement.
---
## ✅ Part 02 – General Utility Procedures
### 1. Sum of Range
Stored procedure that calculates the **sum** of a given number range.
### 2. Circle Area
Stored procedure that calculates the **area of a circle** from a given **radius**.
### 3. Age Category
Stored procedure that determines the **age category**:
- `< 18` → Child
- `18 ≤ Age < 60` → Adult
- `≥ 60` → Senior
### 4. Max, Min, Avg of Numbers
Stored procedure that takes a set of numbers (e.g., `'5,10,15,20,25'`) and returns:
- Maximum
- Minimum
- Average
---
## ✅ Part 03 – Triggers on `ITI` DB
### 1. Prevent Insert on Department
Trigger that prevents inserting into the `Department` table.
Shows message: `"You can’t insert a new record in this table"`.
### 2. StudentAudit Table
Create a new table `StudentAudit`:
- `ServerUserName`
- `Date`
- `Note`
### 3. Insert Trigger on Student Table
After a new student is inserted:
- Log into `StudentAudit` table with:
- Username
- Date
- Note format:
`"[username] Insert New Row with Key = [Student Id] in table [Student]"`
### 4. Instead of Delete Trigger on Student Table
When a delete is attempted:
- Log into `StudentAudit` table with:
- Username
- Date
- Note format:
`"try to delete Row with id = [Student Id]"`
---
## ✅ Part 04 – Triggers and Auditing
### [MyCompany DB] Prevent Employee Insert in March
Trigger on `Employee` table to **prevent insertions** during **March**.
### [IKEA_Company DB] Audit Budget Updates
Create `Audit` table with columns:
- `ProjectNo`, `UserName`, `ModifiedDate`, `Budget_Old`, `Budget_New`
Trigger on `Project` table that:
- Detects updates on the `Budget` column
- Logs old and new values into the `Audit` table with username and date
---
## ℹ️ Notes
- Ensure each stored procedure and trigger includes proper error handling and validation.
- Use meaningful names and follow best practices for SQL development.
- Test each procedure/trigger independently to ensure correct behavior.
## 📦 Download IKEA_Company_DB
If you'd like to use the **IKEA_Company_DB ||ITI DB || MyCompany** for practicing the Views section, you can download it from the link below:
🔗 [Download IKEA DB](https://drive.google.com/file/d/1WULxidId0fJwl6-4eSraZoqAFSAd_LbZ/view?usp=sharing)
🔗 [Download ITI DB](https://drive.google.com/file/d/1CKTyVY98kAuZESL0wN05CV1_207HMcB0/view?usp=sharing)
🔗 [Download MyCompany DB](https://drive.google.com/file/d/1R1q5i1DBYYRkCIlz1Ev-qeKKhQ8pOb77/view?usp=sharing)