Chesley  Wehner

Chesley Wehner


10 Best Courses to Learn SQL for Beginners to Learn Online in 2021

My favorite online courses to learn SQL and Database for beginners in 2021 with examples on PostgreSQL, MySQL, Oracle, and SQL Server.

Hello guys, if you are a computer science graduate or new to the programming world and interested in learning Databases and, SQL and looking for some awesome resources —like books, courses, and tutorials — to start with, then you have come to the right place.

In the past, I have shared some of the best SQL books and websites, and today, I am going to share some of the best SQL and database courses to learn so you can master this useful technology.

If you don’t know what SQL is and why you should learn it, let me give you a brief overview of SQL for everyone’s benefit. SQL is a programming language to work with a database.

You can use SQL to create database objects —like tables, stored procedures, etc. — and also to store and retrieve data from the database.

SQL is one of the most important skills for any programmer, irrespective of technology, framework, and domain. It is even more popular than a mainstream programming language like Java and Python, and it definitely adds a lot of value to your CV.

SQL allows you to play with data, which is the most important asset of today’s world. By learning SQL, you can get answers to your questions. For example, if you are a course creator for Udemy, a popular online course platform, and want to know which course is the best seller and which course is not selling at all, you can use SQL.

It can help in troubleshooting as well as reporting. Also, SQL is a very stable technology and has been around for years, and it will be needed in the future. This means any investment you make in learning SQL will also serve you for a long time in your career.

10 Best Courses to Learn SQL and Database for Beginners in 2021

  1. The Complete SQL Bootcamp
  2. SQL for Newbs: Data Analysis for Beginners
  3. SQL & Database Design A-Z™: Learn MS SQL Server + PostgreSQL
  4. Oracle SQL: Become a Certified SQL Developer From Scratch!
  5. 200+ SQL Interview Questions
    6. SQL for Data Science — Coursera
    7.  Building Basic Relational Databases in SQL Server Management Studio — Coursera
    8.  Complete SQL + Databases Bootcamp: Zero to Mastery [2021]
    9.  An Introductory Guide to SQL
    10.  Introduction to Databases and SQL [FutureLearn]

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10 Best Courses to Learn SQL for Beginners to Learn Online in 2021
Cayla  Erdman

Cayla Erdman


Introduction to Structured Query Language SQL pdf

SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:

1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.

2. Every database seller needs an approach to separate its item from others.

Right now, contrasts are noted where fitting.

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bindu singh

bindu singh


Procedure To Become An Air Hostess/Cabin Crew

Minimum educational required – 10+2 passed in any stream from a recognized board.

The age limit is 18 to 25 years. It may differ from one airline to another!


Physical and Medical standards –

  • Females must be 157 cm in height and males must be 170 cm in height (for males). This parameter may vary from one airline toward the next.
  • The candidate's body weight should be proportional to his or her height.
  • Candidates with blemish-free skin will have an advantage.
  • Physical fitness is required of the candidate.
  • Eyesight requirements: a minimum of 6/9 vision is required. Many airlines allow applicants to fix their vision to 20/20!
  • There should be no history of mental disease in the candidate's past.
  • The candidate should not have a significant cardiovascular condition.

You can become an air hostess if you meet certain criteria, such as a minimum educational level, an age limit, language ability, and physical characteristics.

As can be seen from the preceding information, a 10+2 pass is the minimal educational need for becoming an air hostess in India. So, if you have a 10+2 certificate from a recognized board, you are qualified to apply for an interview for air hostess positions!

You can still apply for this job if you have a higher qualification (such as a Bachelor's or Master's Degree).

So That I may recommend, joining Special Personality development courses, a learning gallery that offers aviation industry courses by AEROFLY INTERNATIONAL AVIATION ACADEMY in CHANDIGARH. They provide extra sessions included in the course and conduct the entire course in 6 months covering all topics at an affordable pricing structure. They pay particular attention to each and every aspirant and prepare them according to airline criteria. So be a part of it and give your aspirations So be a part of it and give your aspirations wings.

Read More:   Safety and Emergency Procedures of Aviation || Operations of Travel and Hospitality Management || Intellectual Language and Interview Training || Premiere Coaching For Retail and Mass Communication |Introductory Cosmetology and Tress Styling  ||  Aircraft Ground Personnel Competent Course

For more information:

Visit us at:

Phone         : 

Address:     Aerofly International Aviation Academy, SCO 68, 4th Floor, Sector 17-D,                            Chandigarh, Pin 160017 



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Ray  Patel

Ray Patel


Python Packages in SQL Server – Get Started with SQL Server Machine Learning Services


When installing Machine Learning Services in SQL Server by default few Python Packages are installed. In this article, we will have a look on how to get those installed python package information.

Python Packages

When we choose Python as Machine Learning Service during installation, the following packages are installed in SQL Server,

  • revoscalepy – This Microsoft Python package is used for remote compute contexts, streaming, parallel execution of rx functions for data import and transformation, modeling, visualization, and analysis.
  • microsoftml – This is another Microsoft Python package which adds machine learning algorithms in Python.
  • Anaconda 4.2 – Anaconda is an opensource Python package

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sneha cynix


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

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.


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.

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Techtutorials | Online IT Courses, Training, Syllabus

Techtutorials tell you the best online IT courses/training, tutorials, certification courses, and syllabus from beginners to advanced level on the latest technologies recommended by Programming Community through video-based, book, free, paid, Real-time Experience, etc.

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