Joining Data and using Triggers in PostgreSQL

Joining Data and using Triggers in PostgreSQL, available at $39.99, has an average rating of 3.6, with 42 lectures, based on 10 reviews, and has 2285 subscribers.

You will learn about Install PostgreSQL Connect to PostgreSQL Database Create a Table Populate a Table Join data using Natural Join Join data using Cross Join Join data using Inner Join Join data using Left Join Join data using Full Outer Join Create Triggers Manage Triggers Perform Basic CRUD OPeration This course is ideal for individuals who are SQL Beginners or Anyone who wants to learn something new It is particularly useful for SQL Beginners or Anyone who wants to learn something new.

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Summary

Title: Joining Data and using Triggers in PostgreSQL

Price: $39.99

Average Rating: 3.6

Number of Lectures: 42

Number of Published Lectures: 42

Number of Curriculum Items: 42

Number of Published Curriculum Objects: 42

Original Price: $109.99

Quality Status: approved

Status: Live

What You Will Learn

Install PostgreSQL
Connect to PostgreSQL Database
Create a Table
Populate a Table
Join data using Natural Join
Join data using Cross Join
Join data using Inner Join
Join data using Left Join
Join data using Full Outer Join
Create Triggers
Manage Triggers
Perform Basic CRUD OPeration

Who Should Attend

SQL Beginners
Anyone who wants to learn something new

Target Audiences

SQL Beginners
Anyone who wants to learn something new

The PostgreSQL Joins clause is used to combine records from two or more tables in a database. A JOIN is a means for combining fields from two tables by using values common to each.

The main concept which is focusing on a join is that, two or more data sets, when joined, combined their columns into a new set of rows, including each of the columns requested from each of the data sets. All joins are standing on the foundation of Cartesian product. The Cartesian product is the set of all possible combinations between two data sets. A join creates a set of rows in a temporary table and works on two or more tables, and each table should at least one common field and must maintain a relation between the common fields. Join keeps the structure unchanged of the base tables.

Types of PostgreSQL JOIN

Cross Join
Inner Join
Left Outer Join
Right Outer Join
Full Outer Join

A PostgreSQL trigger is a function invoked automatically whenever an event associated with a table occurs. An event could be any of the following: INSERT, UPDATE, DELETE or TRUNCATE.

A trigger is a special user-defined function that binds to a table. To create a new trigger, you must define a trigger function first, and then bind this trigger function to a table. The difference between a trigger and a user-defined function is that a trigger is automatically invoked when an event occurs.

PostgreSQL provides two main types of triggers: row and statement level triggers. The differences between the two are how many times the trigger is invoked and at what time. For example, if you issue an UPDATE statement that affects 20 rows, the row level trigger will be invoked 20 times, while the statement level trigger will be invoked 1 time.

You can specify whether the trigger is invoked before or after an event. If the trigger is invoked before an event, it can skip the operation for the current row or even change the row being updated or inserted. In case the trigger is invoked after the event, all changes are available to the trigger.
We will create and manage a basic trigger in this course.

This course provides a comprehensive guide to working with data in PostgreSQL, focusing on data joins and triggers. Students will learn how to combine data from multiple tables using various join techniques and how to implement triggers to automate actions in the database.

Course Curriculum

Chapter 1: Setting up PostgreSQL Database Environment

Lecture 1: Introduction

Lecture 2: What is PostgreSQL

Lecture 3: Overview of PostgreSQL

Lecture 4: PostgreSQL System Architeture

Lecture 5: Some companies using PostgreSQL

Lecture 6: Minimum System Requirements

Lecture 7: Download PostgreSQL

Lecture 8: Install PostgreSQL on Windows

Lecture 9: Verifying installation

Lecture 10: Installing PostgreSQL on MacOS

Lecture 11: Connecting to PostgreSQL Database

Lecture 12: Load sample database

Lecture 13: Creating a new table

Lecture 14: Populating a Table

Lecture 15: Query a Table

Chapter 2: PostgreSQL Database Objects

Lecture 1: Server Service

Lecture 2: Schema

Lecture 3: Tablespace

Lecture 4: Extensions

Chapter 3: Joining Data

Lecture 1: Introduction to Joins

Lecture 2: Joining data with Natural Join

Lecture 3: Joining Data with Cross Join

Lecture 4: Joining Data with Inner Join

Lecture 5: Joining Data with Left Join

Lecture 6: Joining Data with Full Outer Join

Chapter 4: Using Triggers

Lecture 1: What are Triggers

Lecture 2: Creating your first trigger part 1

Lecture 3: Creating your first trigger part 2

Lecture 4: Creating your first trigger part 3

Lecture 5: Managing Triggers

Chapter 5: Performing Basic CRUD Operations

Lecture 1: Introduction to CRUD

Lecture 2: Creating a database using PG4ADMIN

Lecture 3: Creating a Table using PG4ADMIN

Lecture 4: Using CREATE Table statement

Lecture 5: Retrieving data with SELECT statement

Lecture 6: Using Subquery

Lecture 7: Using UPDATE statement

Lecture 8: Using DELETE statement

Lecture 9: Using INSERT statement

Chapter 6: Best Practices and Performance Optimization

Lecture 1: Best Practices for Joining Data

Lecture 2: Optimizing Trigger Performance

Lecture 3: Debugging and Troubleshooting Triggers

Instructors

Bluelime Learning Solutions
Making Learning Simple

Rating Distribution

1 stars: 1 votes
2 stars: 1 votes
3 stars: 3 votes
4 stars: 2 votes
5 stars: 3 votes

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