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Exp 1: Create a Table and Insert 10 records
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‎Class 1: How to Create Database/Class 1: How to Create Database.md

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# How to Create a Database in MySQL
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## Steps to Create a Database
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Follow these simple steps to create a database in MySQL:
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### 1. Create a Database
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```sql
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CREATE DATABASE database_Name;
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```
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Replace `database_Name` with your desired database name.
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- EXAMPLE:
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```
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CREATE DATABASE Kaliya_Network_db;
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```
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### 2. Show Available Databases
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```sql
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SHOW DATABASES;
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```
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This command lists all databases available in MySQL.
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### 3. Select the Database to Use
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```sql
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USE database_Name;
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```
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This command selects the database for further operations.
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---
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## Example
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Let's create a database named **student_db**:
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```sql
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CREATE DATABASE Kaliya_Network_db;
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SHOW DATABASES;
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USE Kaliya_Network_db;
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```
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Now, `Kaliya_Network_db` is ready for use. 🎯

‎Class 1: How to Create Database/class1_code.sql

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CREATE DATABASE Kaliya_Network_db;
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SHOW DATABASES;
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USE Kaliya_Network_db;

‎Exp 1: Create a Table and Insert 10 records/Exp 1: Create a Table and Insert 10 records.md

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# Experiment No. 1: Create a Table and Insert 10 Records
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## Steps to Follow:
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### Step 1: Create a Database
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```sql
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CREATE DATABASE CollegeDB;
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```
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### Step 2: Show Available Databases
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```sql
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SHOW DATABASES;
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```
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### Step 3: Use the Created Database
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```sql
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USE CollegeDB;
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```
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### Step 4: Create a Table
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```sql
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CREATE TABLE Students (
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Roll_No INT PRIMARY KEY,
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Name VARCHAR(50),
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Branch VARCHAR(50),
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Faculty VARCHAR(50),
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Age INT
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);
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```
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### Step 5: Show Table Structure
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```sql
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SELECT * FROM Students;
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```
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### Step 6: Insert 10 Records
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```sql
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INSERT INTO Students (Roll_No, Name, Branch, Faculty, Age) VALUES
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(1, 'Aman Sharma', 'CSE', 'Dr. Verma', 20),
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(2, 'Mohammed Faiz', 'ECE', 'Dr. Khan', 21),
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(3, 'Rahul Yadav', 'ME', 'Dr. Singh', 22),
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(4, 'Arif Sheikh', 'CSE', 'Dr. Verma', 20),
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(5, 'Vikas Pandey', 'EE', 'Dr. Sharma', 23),
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(6, 'Syed Imran', 'IT', 'Dr. Patel', 22),
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(7, 'Rajesh Kumar', 'CIVIL', 'Dr. Nair', 21),
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(8, 'Salman Hussain', 'CSE', 'Dr. Verma', 20),
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(9, 'Pooja Iyer', 'BIOTECH', 'Dr. Reddy', 21),
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(10, 'Asif Khan', 'ECE', 'Dr. Khan', 22);
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```
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### Step 7: View the Inserted Records
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```sql
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SELECT * FROM Students;
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```
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### Step 8: Alter Table - Add New Attribute
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```sql
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ALTER TABLE Students ADD CGPA DECIMAL(3,2);
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```
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### Step 9: Update Records with New Data
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```sql
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UPDATE Students
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SET CGPA = CASE
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WHEN Roll_No = 1 THEN 8.5
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WHEN Roll_No = 2 THEN 7.8
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WHEN Roll_No = 3 THEN 8.0
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WHEN Roll_No = 4 THEN 9.1
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WHEN Roll_No = 5 THEN 7.5
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WHEN Roll_No = 6 THEN 8.2
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WHEN Roll_No = 7 THEN 7.9
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WHEN Roll_No = 8 THEN 9.0
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WHEN Roll_No = 9 THEN 8.4
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WHEN Roll_No = 10 THEN 7.7
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END;
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```
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### Step 10: Display the Updated Table
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```sql
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SELECT * FROM Students;
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```
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## Output:
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| Roll_No | Name | Branch | Faculty | Age | CGPA |
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|---------|--------------|---------|---------|-----|------|
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| 1 | Aman Sharma | CSE | Dr. Verma | 20 | 8.5 |
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| 2 | Mohammed Faiz| ECE | Dr. Khan | 21 | 7.8 |
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| 3 | Rahul Yadav | ME | Dr. Singh | 22 | 8.0 |
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| 4 | Arif Sheikh | CSE | Dr. Verma | 20 | 9.1 |
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| 5 | Vikas Pandey | EE | Dr. Sharma | 23 | 7.5 |
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| 6 | Syed Imran | IT | Dr. Patel | 22 | 8.2 |
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| 7 | Rajesh Kumar | CIVIL | Dr. Nair | 21 | 7.9 |
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| 8 | Salman Hussain | CSE | Dr. Verma | 20 | 9.0 |
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| 9 | Pooja Iyer | BIOTECH | Dr. Reddy | 21 | 8.4 |
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| 10 | Asif Khan | ECE | Dr. Khan | 22 | 7.7 |
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### Conclusion:
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This experiment demonstrates how to create a database, define a table, insert records, update records, and alter a table dynamically.

‎Exp 1: Create a Table and Insert 10 records/Exp1Code1.sql

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CREATE DATABASE CollegeDB;
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SHOW DATABASES;
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USE CollegeDB;
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CREATE TABLE Students (
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Roll_No INT PRIMARY KEY,
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Name VARCHAR(50),
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Branch VARCHAR(50),
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Faculty VARCHAR(50),
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Age INT
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);
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SELECT * FROM Students;
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INSERT INTO Students (Roll_No, Name, Branch, Faculty, Age) VALUES
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(1, 'Aman Sharma', 'CSE', 'Dr. Verma', 20),
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(2, 'Mohammed Faiz', 'ECE', 'Dr. Khan', 21),
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(3, 'Rahul Yadav', 'ME', 'Dr. Singh', 22),
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(4, 'Arif Sheikh', 'CSE', 'Dr. Verma', 20),
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(5, 'Vikas Pandey', 'EE', 'Dr. Sharma', 23),
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(6, 'Syed Imran', 'IT', 'Dr. Patel', 22),
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(7, 'Rajesh Kumar', 'CIVIL', 'Dr. Nair', 21),
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(8, 'Salman Hussain', 'CSE', 'Dr. Verma', 20),
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(9, 'Pooja Iyer', 'BIOTECH', 'Dr. Reddy', 21),
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(10, 'Asif Khan', 'ECE', 'Dr. Khan', 22);
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SELECT * FROM Students;
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ALTER TABLE Students ADD CGPA DECIMAL(3,2);
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UPDATE Students
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SET CGPA = CASE
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WHEN Roll_No = 1 THEN 8.5
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WHEN Roll_No = 2 THEN 7.8
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WHEN Roll_No = 3 THEN 8.0
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WHEN Roll_No = 4 THEN 9.1
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WHEN Roll_No = 5 THEN 7.5
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WHEN Roll_No = 6 THEN 8.2
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WHEN Roll_No = 7 THEN 7.9
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WHEN Roll_No = 8 THEN 9.0
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WHEN Roll_No = 9 THEN 8.4
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WHEN Roll_No = 10 THEN 7.7
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END;
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SELECT * FROM Students;

‎Exp 1: Create a Table and Insert 10 records/Exp1Code2.sql

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CREATE DATABASE CollegeDB;
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SHOW DATABASES;
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USE CollegeDB;
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CREATE TABLE Students (Roll_No INT PRIMARY KEY, Name VARCHAR(50), Branch VARCHAR(50), Faculty VARCHAR(50), Age INT
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);
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SELECT * FROM Students;
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INSERT INTO Students (Roll_No, Name, Branch, Faculty, Age) VALUES (1, 'Aman Sharma', 'CSE', 'Dr. Verma', 20), (2, 'Mohammed Faiz', 'ECE', 'Dr. Khan', 21), (3, 'Rahul Yadav', 'ME', 'Dr. Singh', 22), (4, 'Arif Sheikh', 'CSE', 'Dr. Verma', 20), (5, 'Vikas Pandey', 'EE', 'Dr. Sharma', 23), (6, 'Syed Imran', 'IT', 'Dr. Patel', 22), (7, 'Rajesh Kumar', 'CIVIL', 'Dr. Nair', 21), (8, 'Salman Hussain', 'CSE', 'Dr. Verma', 20), (9, 'Pooja Iyer', 'BIOTECH', 'Dr. Reddy', 21), (10, 'Asif Khan', 'ECE', 'Dr. Khan', 22);
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SELECT * FROM Students;
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ALTER TABLE Students ADD CGPA DECIMAL(3,2);
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UPDATE Students
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SET CGPA = CASE WHEN Roll_No = 1 THEN 8.5 WHEN Roll_No = 2 THEN 7.8 WHEN Roll_No = 3 THEN 8.0 WHEN Roll_No = 4 THEN 9.1 WHEN Roll_No = 5 THEN 7.5 WHEN Roll_No = 6 THEN 8.2 WHEN Roll_No = 7 THEN 7.9 WHEN Roll_No = 8 THEN 9.0 WHEN Roll_No = 9 THEN 8.4 WHEN Roll_No = 10 THEN 7.7 END;
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SELECT * FROM Students;

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