SQL Querying SQL Databases using T-SQL

Course Overview

Course Prerequisites

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

Target Audience for this Course

• • 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.

Included with this course

• • Comprehensive course materials and exercises

Course Content

• 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.
  Familiarize yourself with SSMS
  Introduction to the Query Editor

• Retrieving Data

  This module describes the fundamental part of a T-SQL query: the SELECT statement.
  Basic Select statements
  Using expressions in Select lists

• Filtering Rows

  This module describes how you can filter unwanted data out of your results using the WHERE clause.
  Basic equality filters
  Basic comparisons
  Logical comparisons
  String comparisons
  NULL comparisons

• 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.
  Basic sorting
  Sorting on expressions
  Unique rows
  Limiting results

• 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.
  Single aggregates
  GROUP BY
  HAVING

• 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
  Inner joins
  Outer joins
  Unions

• 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.
  Using views
  Using stored procedures

• 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.
  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.