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sql-queries

Introduction to SQL

Learn the key concepts of Structured Query Language (SQL), and gain a solid working knowledge of this powerful and universal database programming language.

By the end of this course, you'll have a solid working knowledge of structured query language. You'll feel confident in your ability to write SQL queries to create tables; retrieve data from single or multiple tables; delete, insert, and update data in a database; and gather significant statistics from data stored in a database.

6 Weeks / 24 Course Hrs
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Learning Method

Instructor-led

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Starting December 12 | January 16
Self-Paced

No instructor. Study on your own schedule

Introduction to SQL

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Details + Objectives

Course Code: sql

What You Will Learn
  • Learn about the basic structure of relational databases and how to read and write simple and complex SQL statements and advanced data manipulation techniques
  • Discover how to use SQL to filter retrieved data and how to use SQL to sort and retrieve data from tables
  • Learn how to reformat retrieved data with calculated fields and how to merge columns and create alternate names for columns
  • Learn how to gather significant statistics from data using aggregate functions
  • Learn how to manipulate data using the INSERT, UPDATE, and DELETE statements
  • Understand how to use SQL to create and maintain tables, and how to create and use views to simplify complex queries, summarize data, and manipulate data stored in tables
  • Discover how transaction processing, constraints, and indexes are implemented in SQL
  • Discover how stored procedures, triggers, and cursors are implemented in SQL
How the course is taught
  • Instructor led or self paced online course
  • 6 -12 weeks to complete
  • 24 course hours
How you will benefit
  • Gain confidence in your ability to write in the universal database programming language of SQL
  • Open the door to opportunities as you list basic SQL programming as a skill on your resume
  • Develop a new skill and learn whether or not you would like a career in IT

Outline

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Lesson 1 & 2

Explore the basic structure and history of relational databases and discover what SQL is and how it's used with a relational database. Then, you'll learn how to use SQL to filter and retrieve data from tables.

Lesson 3 & 4

Learn how to use SQL to filter retrieved data using the ORDER BY clause and additional query terms that will help you customize your queries. Then, learn how to reformat retrieved data with calculated fields and functions.

Lesson 5 & 6

Discover how to gather significant statistics from data using aggregate functions and learn how to use the GROUP BY clause in conjunction with an aggregate function to gather important statistics from a table as well as the HAVING clause in conjunction with an aggregate function to filter groups of data from a table. Then, learn how to extract data from multiple tables simultaneously, how to use calculated fields in subqueries, how to use the DATEPART () function in subqueries, and how to use aggregate functions in subqueries.

Lesson 7 & 8

Learn how to use joins to gather information from two or more tables simultaneously. Then, discover how to manipulate data using the INSERT, UPDATE, and DELETE statements. 

Lesson 9 & 10

Find out how you can use SQL to create and maintain tables. You'll learn how to use the CREATE TABLE keywords to create a table, then we'll discuss how to use the ALTER TABLE, DROP TABLE, ADD COLUMN, and DROP COLUMN keywords to manipulate the tables themselves. You'll also learn how and why views are used in SQL.

Lesson 11 & 12

Learn how transaction processing, constraints, and indexes are implemented in SQL. Finally, you'll find out how stored procedures, triggers, and cursors are implemented in SQL.

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Instructors & Support

Dr. Cecelia Allison

Dr. Cecelia Allison is an experienced software tester and technical specialist with more than 15 years of hands-on experience using and teaching SQL. She is also a technical writer, a published author, and a university professor. She holds a Bachelor of Science in finance, a Master of Science in information systems and a Doctor of Business Administration in management information systems.

Requirements

Prerequisites / Requirements

Prerequisites:

There are no prerequisites to take this course.

Requirements:

Hardware Requirements: 

  • This course must be taken on a PC. A Mac is not compatible.

Software Requirements: 

  • Windows XP or later.
  • Browser: The latest version of Google Chrome or Mozilla Firefox are preferred. Microsoft Edge is also compatible.
  • Any Database Management System (DBMS) that you are familiar with that supports the execution of Structured Query Language (SQL), such as:
    • Microsoft Access
    • Microsoft SQL Server
    • Oracle
    • MySQL
    • Sybase
    • PostgreSQL
  • Downloads and instructions for Microsoft Access and SQL Server are available in the course.
  • Adobe Flash Player. Click here to download the Flash Player.
  • Adobe Acrobat Reader. Click here to download the Acrobat Reader.
  • Email capabilities and access to a personal email account.
  • Software must be installed and fully operational before the course begins.
Instructional Materials

The instructional materials required for this course are included in enrollment and will be available online.

FAQs

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When can I get started?

Instructor-Led: A new session of each course begins each month. Please refer to the session start dates for scheduling. 

Self-Paced: You can start this course at any time your schedule permits.

How does it work?

Instructor-Led: Once a session starts, two lessons will be released each week, for the 6 week duration of your course. You will have access to all previously released lessons until the course ends.

Self-Paced: You have three-month access to the course. After enrolling, you can learn and complete the course at your own pace, within the allotted access period.

 

How long do I have to complete each lesson?

Instructor-Led: The interactive discussion area for each lesson automatically closes 2 weeks after each lesson is released, so you’re encouraged to complete each lesson within two weeks of its release.

Self-Paced: There is no time limit to complete each lesson, other than completing all lessons before your three-month access.

What if I need an extension?

Instructor-Led: The Final Exam will be released on the same day as the last lesson. Once the Final Exam has been released, you will have 2 weeks plus 10 days to complete the Final and finish any remaining lessons in your course. No further extensions can be provided beyond these 10 days.

Self-Paced: Because this course is self-paced, no extensions will be granted after the start of your enrollment.

What is sql?

SQL stands for Structured Query Language. It is the primary language that’s used for interacting with and managing data held in relational database management systems and knowing it is a valuable skill. Its syntax is similar to English so it is said to be an easy programming language to learn. Using SQL, you can easily query, update and organize data as well as create and modify database structure. You can also control access of the data by other individuals. While it may sound like something you can handle in Microsoft Excel, it is much more capable of handling large amounts of data. In fact, it’s designed to easily handle billions of cells of data.

Why is it important to learn sql?

There are several reasons to learn SQL including you will be able to answer questions about your business without having to rely on others to retrieve and distribute data. You can earn a high salary by learning SQL, and it is one of the skills employers are seeking most in our data-driven economy. You also won’t ever have to try to remember how you created a report again as you can save and re-use past SQL queries.

What can I do with sql?

SQL is considered a foundational programming skill. According to some, every software developer or programmer should know how to write SQL queries in order to retrieve data from a database. We live in a data-driven world and understanding how to access and analyze data is a skill that organizations need. Knowledge of SQL could be the first step in learning other programming languages as well.

How is sql used in the workplace?

SQL is one of the most sought-after skills in business as it allows users to interact with data using relational logic. In fact, according to a popular tech website, there are almost 20,000 jobs that require SQL knowledge posted every month! It allows users to access and report on mass amounts of data as well as save the queries that produce reports for quick, easy access in the future, so it’s an important skill to bring to your organization no matter what industry you are in.

What kind of jobs use sql?

According to a popular tech website, there are almost 20,000 jobs that require SQL knowledge posted every month! There are literally dozens of professions the require knowledge of Microsoft SQL. Some of these include:

  • Software Engineer
  • Database Administrator
  • Business Analyst
  • Quality Assurance Tester
  • Systems Administrator
  • Data Analyst
  • SQL Server Developer
  • Quality Assurance Analyst
  • Back-end Developer
  • Data Scientist
Are professionals who know how to write sql in demand?

Yes, professionals who understand how to write SQL are in high demand. There are tens of thousands of open positions across the country and around the world that require knowledge of SQL, and it is considered a foundational programming skill.

What types of businesses use sql?

Businesses in almost every industry use SQL including education, government, finance, technology, manufacturing, retail, and others. It is used for a variety of business tasks including tracking product and sales data, storing financial data, calculating ROI, storing customer data, and more. It is used primarily in large organizations, but is also showing up in small to medium sized businesses as well.

Is sql a programming language?

Yes. SQL is considered a fourth-generation programming language (4GL) meaning that it is closer to human language than some of the other programming languages like Java. While it isn’t as difficult to learn as C# or Java, it is definitely considered a programming language and one that many programmers learned as their first programming language.

What are the major components of sql?

SQL consists of three main components including: Data Definition Language (DDL), Data Manipulation Language (DML), and Data Control Language (DCL). DDL is used to create and modify tables and other objects. DML is used to manipulate data within a table. And DCL is the component that creates privileges to allow others to access and manipulate the database.

What operations can sql perform?

SQL can perform four basic operations to allow you to interact with data. These operations include create, read, update and delete—also known as CRUD operations.

What is sql server?

SQL Server is a relational database management system developed by the Microsoft Corporation. It was designed primarily to compete against MySQL.  It is sometimes referred to as MSSQL or Microsoft SQL Server.

What is mysql?

MySQL, developed by Oracle, is the most popular program used for the management of SQL databases. It is an open-source relational database management system which has millions of applications built using it.

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