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Introduction to SQL

Course offered by : Ed2go

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In this course on Structured Query Language (SQL) , you'll learn about the basic structure of relational databases and how to read and write simple and complex SQL statements and advanced data manipulation techniques. You will also learn the following:
•    Traditional database structure, the structure and history of the relational database, and what structured query language (SQL) is and how it relates to the relational-database structure.
•    How to use SQL to sort and retrieve data from tables and how to use SQL to filter retrieved data.
•    How to reformat retrieved data with calculated fields and how to merge columns and create alternate names for columns.
•    How to gather significant statistics from data using aggregate functions, and you'll see how to extract data from multiple tables simultaneously using joins and subqueries. In addition, you'll learn how to manipulate data using the INSERT, UPDATE, and DELETE statements.
•    How to use SQL to create and maintain tables, create and use views to simplify complex queries, summarize data, and manipulate data stored in tables.
•    How transaction processing, constraints, and indexes are implemented in SQL and how stored processes
•    How stored procedures, triggers, and cursors are implemented in SQL.
 

Topics covered / Highlights


A new session of each course starts monthly. If enrolling in a series of two or more courses, please be sure to space the start date for each course at least two months apart.

Week 1
•    Wednesday - Lesson 01

In our first lesson, we'll explore the basic structure and history of relational databases. Then, you'll understand what SQL is and how it is used with a relational database.
•    Friday - Lesson 02
In this lesson, you'll learn how to use SQL to sort and retrieve data from tables. We'll talk about important query terms that enable you to communicate with your database, as well as syntax rules that will enable you to create clear and understandable queries while avoiding system generated errors.
Week 2
•    Wednesday - Lesson 03

In this lesson, you'll learn how to use SQL to filter retrieved data. You'll practice sorting retrieved data using the ORDER BY clause. You'll be able to sort single and multiple columns, and you'll know how to specify sort directions such as ascending and descending order. You'll also learn additional query terms that will help you customize your SQL queries.
•    Friday - Lesson 04
Today, you'll learn how to reformat retrieved data with calculated fields and functions. You'll also learn how to create alternate names for columns and you'll discover the secret behind merging columns with the concatenation symbol.
Week 3
•    Wednesday - Lesson 05

In this lesson, we'll discuss gathering significant statistics from data using aggregate functions. You'll also learn how to use the GROUP BY clause in conjunction with an aggregate function to gather important statistics from a table. Then you'll find out how to use the HAVING clause in conjunction with an aggregate function to filter groups of data from a table.
•    Friday - Lesson 06
Today's lesson is all about subqueries. You'll 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. Then we'll talk about qualification—a technique used to combine a table name with a column name so there's no question about which table the column name refers to.
Week 4
•    Wednesday - Lesson 07

In this lesson, you'll learn how to use joins to gather information from two or more tables simultaneously. You'll learn how to use the inner join, self-join, natural join, and the outer join. Then you'll become familiar with the term Cartesian product.
•    Friday - Lesson 08
In today's lesson, you'll discover how to manipulate data using the INSERT, UPDATE, and DELETE statements. You'll learn how to insert partial and complete rows into a table, and how to update information already stored in a table. You find out how to transfer data to a new table, how to transfer data to an existing table, and how to delete rows from a table.
Week 5
•    Wednesday - Lesson 09

Today, you'll find out how SQL can be used 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 find out how to define a primary key, data type, and field size.
•    Friday - Lesson 10
In this lesson, you'll learn how and why views are used in SQL. You'll learn how to create and use views to simplify complex queries, summarize data, and manipulate data stored in tables. I'll also teach you how to update and delete a view.
Week 6
•    Wednesday - Lesson 11

Today, you'll learn how transaction processing, constraints, and indexes are implemented in SQL. You'll work through an example that demonstrates how a transaction is created, how constraints are used in the creation of a table, and how indexes are used to improve the performance of a database by optimizing the speed at which queries are processed.
•    Friday - Lesson 12
In our last lesson, you'll find out how stored procedures, triggers, and cursors are implemented in SQL. You'll see how stored procedures are created and executed, as well as how triggers work. You'll also see how cursors are declared in SQL.

 

Who can attend this ?


Anyone who wishes to develop a complete understanding of the concepts of Structured Query Language (SQL) can attend this course.

Pre requisites


• Internet access
• Email
• One of the following browsers:
    o Mozilla Firefox
    o Microsoft Internet Explorer (9.0 or above)
    o Google Chrome
    o Safari
• Adobe PDF  plug-in (a free download obtained at Adobe.com .)
 
Any type of computer with a Windows Operating System, and any desktop (standalone, not required to run over a server) or client/server (required to run over a server) Database Management System (DBMS) that you are familiar with that supports the execution of Structured Query Language (SQL). Examples include Microsoft Access, Microsoft SQL Server, Oracle, MySQL, Sybase, PostgreSQL.

Free trial downloads and instructions for Microsoft Access and SQL Server are available in the course.
Any type of computer with a Windows Operating System, and any desktop (standalone, not required to run over a server) or client/server (required to run over a server) Database Management System (DBMS) that you are familiar with that supports the execution of Structured Query Language (SQL). Examples include Microsoft Access, Microsoft SQL Server, Oracle, MySQL, Sybase, PostgreSQL.

Free trial downloads and instructions for Microsoft Access and SQL Server are available in the course.

What am I going to get from this Class ?


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.

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Trainer Profile


Cecelia Allison

Experienced software tester and technical specialist with more than 15 years of hands-on experience using and teaching SQL.


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