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Querying SQL Databases using T-SQL

This course will provide you with the basic knowledge and skills to create queries using Transact-SQL. It will teach you how to select, filter and sort data from multiple tables and how to use views and stored procedures.

Target Audience:

IT Professionals who will be writing queries for use with Microsoft SQL Server 2005, 2008, 2012, 2014 and 2016. Non-technical 'power users' will also benefit from the course if they are comfortable using sophisticated software tools like SQL Server Management Studio.

The course is aimed at both non-technical 'power users' and IT Professionals who will be writing queries for use with Microsoft SQL Server.

Please note - Delegates attending an Extended Classroom delivery will need access to a second monitor.

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Pre-Requisites

There are no technical pre-requisites for this course and it assumes no prior knowledge of SQL Server.

Course Content

Module 1: Introduction to T-SQL

This module provides essential background information on Relational Database Management Systems and Microsoft SQL Server and introduces the main tool that will be used throughout the course - SQL Server Management Studio.

Lab :

  • Familiarize yourself with SSMS
  • Introduction to the Query Editor

Module 2: Retrieving Data

This module describes the fundamental part of a T-SQL query: the SELECT statement.

Lab :

  • Basic Select statements
  • Using expressions in Select lists

Module 3: Filtering Rows

This module describes how you can filter unwanted data out of your results using the WHERE clause.

Lab :

  • Basic equality filters
  • Basic comparisons
  • Logical comparisons
  • String comparisons
  • NULL comparisons

Module 4: Sorting returned rows

This module describes how to use the ORDER BY clause of a query to manage the order in which rows are returned.

Lab :

  • Basic sorting
  • Sorting on expressions
  • Unique rows
  • Limiting results

Module 5: Grouping and Aggregating data

This module describes how to use the aggregate functions of SQL to calculate results for a number of records at a time and how to group results into a series of values. Finally, it describes how to filter the grouped values.

Lab :

  • Single aggregates
  • GROUP BY
  • HAVING

Module 6: Using multiple tables

This module describes how to use JOIN clauses to retrieve data from multiple tables. It also covers the UNION, INTERSECT and EXCEPT keywords

Lab :

  • Inner joins
  • Outer joins
  • Unions

Module 7: Using Views and Stored Procedures

This module provides an introduction to the benefits of using pre-written queries which have been stored in the database.

Lab :

  • Using views
  • Using stored procedures

Module 8: Common Functions

This module introduces you to some of the basic text, date and null-value manipulation functions that are built in to SQL Server.

Lab :

  • Text functions
  • Date functions
  • NULL functions
  • Formatting dates

Appendix : Modifying Data

If time allows and if enough delegates express an interest in the topic, this module gives a brief introduction to INSERT, UPDATE and DELETE statements.

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Online Courses

You may prefer an online course if you are looking for a flexible and cost-effective solution. Online courses allow you to study at your own pace, at a time that suits you.

We have the following eLearning options available:

Virtual Classroom

Virtual classrooms provide all the benefits of attending a classroom course without the need to arrange travel and accomodation. Please note that virtual courses are attended in real-time, commencing on a specified date.

Virtual Course Dates

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