From cf0f90596c879815d096a8b3b3c83198c6485e08 Mon Sep 17 00:00:00 2001
From: Imran Imtiaz <emraan.imtiaz48@gmail.com>
Date: Fri, 1 Nov 2024 16:27:38 +0400
Subject: [PATCH] Update SQL Basics Create Table and Insert Into

I combined both table creation queries and the data insertion queries into one unified script, which includes:

1. **Table Creation Statements**:
   - `EmployeeDemographics` table with primary key, `NOT NULL` constraints, and checks for valid age and gender values.
   - `EmployeeSalary` table with a primary key, `NOT NULL` constraints, a `CHECK` constraint for valid salary, and a foreign key relationship linking `EmployeeID` to `EmployeeDemographics`.

2. **Data Insertion Statements**:
   - Insert statements for both tables with values provided in a clean and formatted way.

This makes it convenient to run everything at once, creating the tables and populating them with data.
---
 SQL Basics Create Table and Insert Into | 76 ++++++++++++-------------
 1 file changed, 37 insertions(+), 39 deletions(-)

diff --git a/SQL Basics Create Table and Insert Into b/SQL Basics Create Table and Insert Into
index 6a236ef..7fd8380 100644
--- a/SQL Basics Create Table and Insert Into	
+++ b/SQL Basics Create Table and Insert Into	
@@ -1,42 +1,40 @@
+-- Create Table: EmployeeDemographics
+CREATE TABLE EmployeeDemographics (
+    EmployeeID INT PRIMARY KEY,
+    FirstName VARCHAR(50) NOT NULL,
+    LastName VARCHAR(50) NOT NULL,
+    Age INT CHECK (Age > 0),
+    Gender VARCHAR(50) CHECK (Gender IN ('Male', 'Female'))
+);
 
-Table 1 Query:
-Create Table EmployeeDemographics 
-(EmployeeID int, 
-FirstName varchar(50), 
-LastName varchar(50), 
-Age int, 
-Gender varchar(50)
-)
+-- Create Table: EmployeeSalary
+CREATE TABLE EmployeeSalary (
+    EmployeeID INT PRIMARY KEY,
+    JobTitle VARCHAR(50) NOT NULL,
+    Salary INT CHECK (Salary > 0),
+    FOREIGN KEY (EmployeeID) REFERENCES EmployeeDemographics(EmployeeID)
+);
 
-Table 2 Query:
-Create Table EmployeeSalary 
-(EmployeeID int, 
-JobTitle varchar(50), 
-Salary int
-)
+-- Insert Data into EmployeeDemographics
+INSERT INTO EmployeeDemographics (EmployeeID, FirstName, LastName, Age, Gender) VALUES
+    (1001, 'Jim', 'Halpert', 30, 'Male'),
+    (1002, 'Pam', 'Beasley', 30, 'Female'),
+    (1003, 'Dwight', 'Schrute', 29, 'Male'),
+    (1004, 'Angela', 'Martin', 31, 'Female'),
+    (1005, 'Toby', 'Flenderson', 32, 'Male'),
+    (1006, 'Michael', 'Scott', 35, 'Male'),
+    (1007, 'Meredith', 'Palmer', 32, 'Female'),
+    (1008, 'Stanley', 'Hudson', 38, 'Male'),
+    (1009, 'Kevin', 'Malone', 31, 'Male');
 
-
-
-Table 1 Insert:
-Insert into EmployeeDemographics VALUES
-(1001, 'Jim', 'Halpert', 30, 'Male'),
-(1002, 'Pam', 'Beasley', 30, 'Female'),
-(1003, 'Dwight', 'Schrute', 29, 'Male'),
-(1004, 'Angela', 'Martin', 31, 'Female'),
-(1005, 'Toby', 'Flenderson', 32, 'Male'),
-(1006, 'Michael', 'Scott', 35, 'Male'),
-(1007, 'Meredith', 'Palmer', 32, 'Female'),
-(1008, 'Stanley', 'Hudson', 38, 'Male'),
-(1009, 'Kevin', 'Malone', 31, 'Male')
-
-Table 2 Insert:
-Insert Into EmployeeSalary VALUES
-(1001, 'Salesman', 45000),
-(1002, 'Receptionist', 36000),
-(1003, 'Salesman', 63000),
-(1004, 'Accountant', 47000),
-(1005, 'HR', 50000),
-(1006, 'Regional Manager', 65000),
-(1007, 'Supplier Relations', 41000),
-(1008, 'Salesman', 48000),
-(1009, 'Accountant', 42000)
+-- Insert Data into EmployeeSalary
+INSERT INTO EmployeeSalary (EmployeeID, JobTitle, Salary) VALUES
+    (1001, 'Salesman', 45000),
+    (1002, 'Receptionist', 36000),
+    (1003, 'Salesman', 63000),
+    (1004, 'Accountant', 47000),
+    (1005, 'HR', 50000),
+    (1006, 'Regional Manager', 65000),
+    (1007, 'Supplier Relations', 41000),
+    (1008, 'Salesman', 48000),
+    (1009, 'Accountant', 42000);