SQL for Beginners

In-Depth Guide to Star Schema in Data Warehouse Modeling: Concepts, Design Principles, and Advantages

In-Depth Guide to Star Schema in Data Warehouse Modelling: Concepts, Design Principles, and Advantages

PostgreSQL Example – How to Create Stack Tables

Stack Tables Create Table Of Elves – Create table called elves CREATE TABLE elves ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255), – string variable weapon varchar(255) ) Create Table Of Dwarves – Create table called dwarves CREATE TABLE dwarves ( – string variable name varchar(255), – …

PostgreSQL Example – How to do Self Join Table

Self Join Table Create Table Of Adventurers – Create table called adventurers CREATE TABLE adventurers ( – string variable name varchar(255), – integer variable age int, – string variable child_of varchar(255) ) Insert Rows Into Adventurers Table INSERT INTO adventurers (name, age, child_of) VALUES (‘Dallar Woodfoot’, 25, NULL), (‘Cordin Garner’, 29, NULL), (‘Keat Garner’, 24, …

PostgreSQL Example – How to Right Join Tables

Right Join Tables Create Table Of Adventurers – Create table called adventurers CREATE TABLE adventurers ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255) ) Create Table Of Adventurer’s Equipment – Create table called equipment CREATE TABLE equipment ( – string variable name varchar(255), – string variable clothes …

PostgreSQL Example – How to Outer Join Tables

Outer Join Tables Create Table Of Adventurers – Create table called adventurers CREATE TABLE adventurers ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255) ) Create Table Of Adventurer’s Equipment – Create table called equipment CREATE TABLE equipment ( – string variable name varchar(255), – string variable clothes …

PostgreSQL Example – How to Create Left Join Tables

Left Join Tables Create Table Of Adventurers – Create table called adventurers CREATE TABLE adventurers ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255) ) Create Table Of Adventurer’s Equipment – Create table called equipment CREATE TABLE equipment ( – string variable name varchar(255), – string variable clothes …

PostgreSQL Example – How to Join Multiple Table

Join Multiple Table Create Table Of Elves – Create table called elves CREATE TABLE elves ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255) ) Create Table Of Weapons – Create table called weapons CREATE TABLE weapons ( – string variable name varchar(255), – string variable weapon varchar(255), …

PostgreSQL Example – How to Create Inner Join Tables

Inner Join Tables Create Table Of Adventurers – Create table called adventurers CREATE TABLE adventurers ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255) ) Create Table Of Adventurer’s Equipment – Create table called equipment CREATE TABLE equipment ( – string variable name varchar(255), – string variable clothes …

PostgreSQL Example – How to Concatenate Multiple Table

Concatenate Multiple Table Create Table Of Elves – Create table called elves CREATE TABLE elves ( – string variable name varchar(255), – integer variable age int, – string variable race varchar(255), – string variable weapon varchar(255) ) Create Table Of Dwarves – Create table called dwarves CREATE TABLE dwarves ( – string variable name varchar(255), …