Poppy Cooke

Poppy Cooke

1561173960

PostgreSQL Database Administration (DBA) for Beginners - Full Course

In this video, we will go over the basics of the PostgreSQL. We will cover topics ranging from installations, to writing basic queries and retrieving data from tables. We will also explore the logic of joining tables to retrieve data and much more.

The course also covers the basics of creating tables, storing data with data types, and working with expressions,  operators, and strings.

What you’ll learn:

  •    Install PostgreSQL Server
  •    Load sample database
  •    Create a database
  •    Create a table
  •    Insert data into tables
  •    Update existing records inside a table
  •    Delete Records in a table
  •    Remove duplicate records
  •    Query data from a table
  •    Create a subquery
  •    Get data from multiple tables
  •    Create and manage roles
  •    Create a view
  •    Create tablespace
  •    Backup and restore database
  •    Filter and sort data
  •    Use various operators
  •    Use aggregate and analytic functions
  •    Create triggers

#postgresql #database #sql 

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PostgreSQL Database Administration (DBA) for Beginners - Full Course
Sival Alethea

Sival Alethea

1624316400

SQL Tutorial - Full Database Course for Beginners. DO NOT MISS!!!

In this course, we’ll be looking at database management basics and SQL using the MySQL RDBMS.
⭐️ Contents ⭐
⌨️ (0:00) Introduction
⌨️ (2:36) What is a Database?
⌨️ (23:10) Tables & Keys
⌨️ (43:31) SQL Basics
⌨️ (52:26) MySQL Windows Installation
⌨️ (1:01:59) MySQL Mac Installation
⌨️ (1:15:49) Creating Tables
⌨️ (1:31:05) Inserting Data
⌨️ (1:38:17) Constraints
⌨️ (1:48:11) Update & Delete
⌨️ (1:56:11) Basic Queries
⌨️ (2:08:37) Company Database Intro
⌨️ (2:14:05) Creating Company Database
⌨️ (2:30:27 ) More Basic Queries
⌨️ (2:26:24) Functions
⌨️ (2:45:13) Wildcards
⌨️ (2:53:53) Union
⌨️ (3:01:36) Joins
⌨️ (3:11:49) Nested Queries
⌨️ (3:21:52) On Delete
⌨️ (3:30:05) Triggers
⌨️ (3:42:12) ER Diagrams Intro
⌨️ (3:55:53) Designing an ER Diagram
⌨️ (4:08:34) Converting ER Diagrams to Schemas
📺 The video in this post was made by freeCodeCamp.org
The origin of the article: https://www.youtube.com/watch?v=HXV3zeQKqGY&list=PLWKjhJtqVAblfum5WiQblKPwIbqYXkDoC&index=8
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#sql #sql tutorial #full database course for beginners #database management basics #sql using the mysql rdbms #sql tutorial - full database course for beginners

sneha cynix

1588143356

How to become a SQL DBA: Database Administrator

Database Administration consists of everything essential for managing a database. This makes it
accessible as per your need. The DBA is the person who maintains, backs up and ensures the data
generation and consumption. You can access them by today's organizations through their IT systems.
The DBA plays a vital role in many of today's IT agencies, and by extension, their organizations as a
whole.

Consider, for example of a commercial bank. The DBA is the person who ensures that the bank teller
has fast, simple access to your records. Therefore you can access your bank balance and transaction
history easily. For this case, the DBA is an application database administrator and a general SQL DBA
position. This is responsible for most aspects of the databases of the organization. It isn’t the only form
of SQL DBA though. In this article let us go through duties and specializations of SQL DBA training

Duties of SQL DBA administrator
The duties of a database administrator can include:
Installing and updating the database server and or application software.
Planning and allocating the physical requirements of the database system. The activities include memory, storage space, network requirements, and so on. Modifying the database configuration using input provided by application developers.

Creating user profiles, and maintaining device protection by conscientious user permissions allocation.
Ensure compliance with the vendor license agreement for the database. This includes a number of installations, and takes care of licensing renewals.
Create a database backup and recovery strategy. Then test the backups regularly to ensure usability.
Monitoring technological support for all database systems and software related to these.
Generates reports by querying from the database as required. These reports can take the form of pre-formatted reports using the application frontend. Besides includes database administrator’s custom-made ad hoc reports.
Track and improve the performance of the database. You can either use manual or automated methods. This may be the most critical duties of a SQL DBA.

Migration of database instances into new hardware and software models. This is from premise to cloud-based applications, and vice versa.
Now that you have read about the duties let us go through different specializations a SQL DBA can acquire.

SQL Database administrator specializations
The term ‘doctor’ may refer to a wide range of specializations. Similarly the position of database administrator often includes a wide range of sub-specializations. The SQL DBA mentioned is the most popular one. It is the one who works for a company in-house or on contract. This helps to keep its internal databases chugging along optimally. The various SQL DBA jobs specializations are as follows.

Database designers
There are also database managers who mainly build and construct databases. They work as part of a team, often in a software development company with more speciality. The database would be part of a larger framework for some particular business needs. In the commercial bank example earlier, the bank most likely buys or leases the software.
This is from an information communication and technology (ICT) firm. The firm specializes in banking software to operate its banking operations. Backed by a database, which is the backend storage for all the data, develop this banking software. You may build this by a team of professional SQL DBAs (more aptly called ‘database designers’). They work with business analysts and others who are familiar with banking operations. This is to develop functions and modules for the different applications. This is to ensure that all bank functions you create reflect in the database structure.

Quality SQL DBA or Tuning SQL DBA:
It is another type of database administrator. You may use this administrator in the optimization and enhancement of the performance. Databases parts of complex software. Simply put, the internal structure of a database and compose of data contained in tables. Using indexes which read like the table of contents of a book can then optimize data access. SQL DBAs help make sure to make a design for the database to take advantage of the physical or virtual hardware.

This means that you need to be able to spread data between multiple disks. Therefore it allows the database to allow better use of the memory or RAM. Besides it manages remote database network traffic. In ‘distributed setups,’ some databases split from multiple servers. Some databases may get so complex. Therefore they require a SQL DBA that focuses solely on improving performance. However, a non-specialist SQL DBA is commonly enough for smaller, single-company databases. for more SQL server dba online course

Application SQL DBA
A third category of database administrator is Application SQL DBA. Specifically, this function focuses on incorporating databases into the applications using them. Browsing most databases needs typically knowledge of a particular type of query language. The Organized Query Language, or SQL, is the most popular. Most users won’t learn how to use and navigate SQL.
Instead, they’ll use a front-end program to perform their required tasks. In a commercial bank, this application is the banking program itself . It is the SQL DBA job to ensure proper contact between the database and the programmer. SQL DBA uses it, and you may share reliable results between the two. For example, the database returns the correct amount and not.

Path to become a SQL DBA

There are two key paths to becoming a database administrator.
Focusing on becoming a SQL DBA from the start of an IT career or
Starting in a general ICT field, such as support or growth from the helpdesk, and slowly becoming more skilled in database management.
Either way, being a professional database administrator won’t occur overnight. You first need to learn other skills that are also important in most ICT careers.

SQL DBA Skills:

The important skills for a SQL DBA are as follows.
Excellent troubleshooting skills
When faced with a question, particularly one you haven’t seen before, the ability to think through the possible causes and then remove or logically follow them to the end is absolute. A successful SQL DBA is one who can see a mistake, and then quickly find potential causes and create possible solutions.

Logical thinking, common sense and above-average memory:

It is also important to have the natural ability to think methodically using an elimination-based approach coupled with a good memory. This includes the ability to remember technical information about various systems and technologies that are important to your configuration, such as how to increase the size of a table in your SQL Server database, how to connect a new disk to your Linux server and how to remove a user in your PostgreSQL database. Similarly, bearing in mind some basic details about your particular environment (Do you work in a LAN or WAN? What are the passwords of the database administrators? How many users do you have? When is your next audit of the database? Where are your backups stored?) is essential.

Curiosity and a deep desire to learn:

Curiosity and ambition should help ensure that your career as a database administrator doesn’t stagnate. The nature of IT is constantly changing — only the desire and appetite to keep learning new things can keep you from going backwards.

Conclusion:

It is a good idea to have one or more commercial database systems approved. Most organizations should concentrate on recruiting people with qualifications and SQL DBA training in the applications that they use similar database. You can always go for SQL server dba training for getting expertise in the topic.

#sql server dba online course #sql dba online course #sql dba training #sql dba course #sql server dba course

Sival Alethea

Sival Alethea

1624305600

Full Ethical Hacking Course - Network Penetration Testing for Beginners (2019)

Learn network penetration testing / ethical hacking in this full tutorial course for beginners. This course teaches everything you need to know to get started with ethical hacking and penetration testing. You will learn the practical skills necessary to work in the field. Throughout the course, we will develop our own Active Directory lab in Windows, make it vulnerable, hack it, and patch it. We’ll cover the red and blue sides. We’ll also cover some of the boring stuff like report writing :).
⭐️ Course Contents ⭐️
⌨️ (0:00) - Course Introduction/whoami
⌨️ (6:12) - Part 1: Introduction, Notekeeping, and Introductory Linux
⌨️ (1:43:45) - Part 2: Python 101
⌨️ (3:10:05) - Part 3: Python 102 (Building a Terrible Port Scanner)
⌨️ (4:23:14) - Part 4: Passive OSINT
⌨️ (5:41:41) - Part 5: Scanning Tools & Tactics
⌨️ (6:56:42) - Part 6: Enumeration
⌨️ (8:31:22) - Part 7: Exploitation, Shells, and Some Credential Stuffing
⌨️ (9:57:15) - Part 8: Building an AD Lab, LLMNR Poisoning, and NTLMv2 Cracking with Hashcat
⌨️ (11:13:20) - Part 9: NTLM Relay, Token Impersonation, Pass the Hash, PsExec, and more
⌨️ (12:40:46) - Part 10: MS17-010, GPP/cPasswords, and Kerberoasting
⌨️ (13:32:33) - Part 11: File Transfers, Pivoting, Report Writing, and Career Advice

📺 The video in this post was made by freeCodeCamp.org
The origin of the article: https://www.youtube.com/watch?v=3Kq1MIfTWCE&list=PLWKjhJtqVAblfum5WiQblKPwIbqYXkDoC&index=6
🔺 DISCLAIMER: The article is for information sharing. The content of this video is solely the opinions of the speaker who is not a licensed financial advisor or registered investment advisor. Not investment advice or legal advice.
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Thanks for visiting and watching! Please don’t forget to leave a like, comment and share!

#ethical hacking #network penetration testing #full ethical hacking course - network penetration testing for beginners #beginners #full ethical hacking course #network penetration testing for beginners

Poppy Cooke

Poppy Cooke

1561173960

PostgreSQL Database Administration (DBA) for Beginners - Full Course

In this video, we will go over the basics of the PostgreSQL. We will cover topics ranging from installations, to writing basic queries and retrieving data from tables. We will also explore the logic of joining tables to retrieve data and much more.

The course also covers the basics of creating tables, storing data with data types, and working with expressions,  operators, and strings.

What you’ll learn:

  •    Install PostgreSQL Server
  •    Load sample database
  •    Create a database
  •    Create a table
  •    Insert data into tables
  •    Update existing records inside a table
  •    Delete Records in a table
  •    Remove duplicate records
  •    Query data from a table
  •    Create a subquery
  •    Get data from multiple tables
  •    Create and manage roles
  •    Create a view
  •    Create tablespace
  •    Backup and restore database
  •    Filter and sort data
  •    Use various operators
  •    Use aggregate and analytic functions
  •    Create triggers

#postgresql #database #sql 

Sival Alethea

Sival Alethea

1624378020

Python Django Web Framework - Full Course for Beginners. DO NOT MISS!!!

Learn the Python Django framework with this free full course. Django is an extremely popular and fully featured server-side web framework, written in Python. Django allows you to quickly create web apps.
⭐️Course Contents ⭐️
⌨️ (0:00:00) 1 - Welcome
⌨️ (0:01:14) 2 - Installing to Get Started
⌨️ (0:05:02) 3 - Setup your Virtual Environment for Django
⌨️ (0:14:39) 4 - Create a Blank Django Project
⌨️ (0:18:54) 5 - Setup Your Code Text Editor
⌨️ (0:22:27) 6 - Settings
⌨️ (0:29:58) 7 - Built-In Components
⌨️ (0:33:57) 8 - Your First App Component
⌨️ (0:42:34) 9 - Create Product Objects in the Python Shell
⌨️ (0:46:18) 10 - New Model Fields
⌨️ (0:52:52) 11 - Change a Model
⌨️ (0:59:27) 12 - Default Homepage to Custom Homepage
⌨️ (1:04:48) 13 - URL Routing and Requests
⌨️ (1:10:23) 14 - Django Templates
⌨️ (1:16:50) 15 - Django Templating Engine Basics
⌨️ (1:24:00) 16 - Include Template Tag
⌨️ (1:26:49) 17 - Rendering Context in a Template
⌨️ (1:33:21) 18 - For Loop in a Template
⌨️ (1:37:01) 19 - Using Conditions in a Template
⌨️ (1:42:17) 20 - Template Tags and Filters
⌨️ (1:48:59) 21 - Render Data from the Database with a Model
⌨️ (1:59:55) 22 - How Django Templates Load with Apps
⌨️ (2:06:50) 23 - Django Model Forms
⌨️ (2:14:16) 24 - Raw HTML Form
⌨️ (2:25:33) 25 - Pure Django Form
⌨️ (2:35:30) 26 - Form Widgets
⌨️ (2:41:29) 27 - Form Validation Methods
⌨️ (2:48:59) 28 - Initial Values for Forms
⌨️ (2:51:42) 29 - Dynamic URL Routing
⌨️ (2:54:26) 30 - Handle DoesNotExist
⌨️ (2:56:24) 31 - Delete and Confirm
⌨️ (2:58:24) 32 - View of a List of Database Objects
⌨️ (3:00:00) 33 - Dynamic Linking of URLs
⌨️ (3:01:17) 34 - Django URLs Reverse
⌨️ (3:03:10) 35 - In App URLs and Namespacing
⌨️ (3:07:35) 36 - Class Based Views - ListView
⌨️ (3:10:45) 37 - Class Based Views - DetailView
⌨️ (3:15:38) 38 - Class Based Views - CreateView and UpdateView
⌨️ (3:21:23) 39 - Class Based Views - DeleteView
⌨️ (3:24:02) 40 - Function Based View to Class Based View
⌨️ (3:27:15) 41 - Raw Detail Class Based View
⌨️ (3:30:31) 42 - Raw List Class Based View
⌨️ (3:33:32) 43 - Raw Create Class Based View
⌨️ (3:26:03) 44 - Form Validation on a Post Method
⌨️ (3:37:58) 45 - Raw Update Class Based View
⌨️ (3:41:13) 46 - Raw Delete Class Based View
⌨️ (3:42:17) 47 - Custom Mixin for Class Based Views

📺 The video in this post was made by freeCodeCamp.org
The origin of the article: https://www.youtube.com/watch?v=F5mRW0jo-U4&list=PLWKjhJtqVAbnqBxcdjVGgT3uVR10bzTEB&index=6
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☞ **-----CLICK HERE-----**⭐ ⭐ ⭐
Thanks for visiting and watching! Please don’t forget to leave a like, comment and share!

#python #django #python django web framework #beginners #full course #python django web framework - full course for beginners