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Home Courses 207613: Querying Data with Transact-SQL

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207613: Querying Data with Transact-SQL

Length: 3 Days    Cost: $2,100 + GST    Version: SQL Server 2016

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About this Course

This course is designed to introduce students to Transact-SQL. It is designed in such a way that the first three days (20761A) can be taught as a course to students requiring the knowledge for other courses in the SQL Server curriculum. If you are wanting to gain certification then 20761C is the course for you as days 4 & 5 teach the remaining skills required to take exam 70-761.

Please note we supply digital courseware with this course. If a hard copy is preferred an additional cost will apply.



Audience


The main purpose of the course is to give students a good understanding of the Transact-SQL language which is used by all SQL Server-related disciplines; namely, Database Administration, Database Development and Business Intelligence. As such, the primary target audience for this course is: Database Administrators, Database Developers and BI professionals.

Software Assurance Vouchers


Yes - 5 days

Prerequisites

  • Basic knowledge of the Microsoft Windows operating system and its core functionality.
  • Working knowledge of relational databases.

At Course Completion

After completing this course, students will be able to:

  • Describe key capabilities and components of SQL Server 2016.
  • Describe T-SQL, sets, and predicate logic.
  • Write a single table SELECT statement.
  • Write a multi-table SELECT statement.
  • Write SELECT statements with filtering and sorting.
  • Describe how SQL Server uses data types.
  • Write DML statements.
  • Write queries that use built-in functions.
  • Write queries that aggregate data.
  • Write subqueries.
  • Create and implement views and table-valued functions.
  • Use set operators to combine query results.
  • Write queries that use window ranking, offset, and aggregate functions.
  • Transform data by implementing pivot, unpivot, rollup and cube.
  • Create and implement stored procedures.
  • Add programming constructs such as variables, conditions, and loops to T-SQL code.

Course Outline


Module 1: Introduction to Microsoft SQL Server 2016

This module introduces SQL Server, the versions of SQL Server, including cloud versions, and how to connect to SQL Server using SQL Server Management Studio.

Lessons

  • The Basic Architecture of SQL Server
  • SQL Server Editions and Versions
  • Getting Started with SQL Server Management Studio

Lab : Working with SQL Server 2016 Tools

  • Working with SQL Server Management Studio
  • Creating and Organizing T-SQL Scripts
  • Using Books Online

After completing this module, you will be able to:

  • Describe relational databases and Transact-SQL queries.
  • Describe the on-premise and cloud-based editions and versions of SQL Server.
  • Describe how to use SQL Server Management Studio (SSMS) to connect to an instance of SQL Server, explore the databases contained in the instance, and work with script files that contain T-SQL queries.

Module 2: Introduction to T-SQL Querying

This module describes the elements of T-SQL and their role in writing queries. Describe the use of sets in SQL Server. Describe the use of predicate logic in SQL Server. Describe the logical order of operations in SELECT statements.

Lessons

  • Introducing T-SQL
  • Understanding Sets
  • Understanding Predicate Logic
  • Understanding the Logical Order of Operations in SELECT statements

Lab : Introduction to T-SQL Querying

  • Executing Basic SELECT Statements
  • Executing Queries that Filter Data using Predicates
  • Executing Queries That Sort Data Using ORDER BY

After completing this module, you will be able to:

  • Describe the role of T-SQL in writing SELECT statements.
  • Describe the elements of the T-SQL language and which elements will be useful in writing queries.
  • Describe the concepts of the set theory, one of the mathematical underpinnings of relational databases, and to help you apply it to how you think about querying SQL Server
  • Describe predicate logic and examine its application to querying SQL Server.
  • Explain the elements of a SELECT statement, delineate the order in which the elements are evaluated, and then apply this understanding to a practical approach to writing queries.

Module 3: Writing SELECT Queries

This module introduces the fundamentals of the SELECT statement, focusing on queries against a single table.

Lessons

  • Writing Simple SELECT Statements
  • Eliminating Duplicates with DISTINCT
  • Using Column and Table Aliases
  • Writing Simple CASE Expressions

Lab : Writing Basic SELECT Statements

  • Writing Simple SELECT Statements
  • Eliminating Duplicates Using DISTINCT
  • Using Column and Table Aliases
  • Using a Simple CASE Expression

After completing this module, you will be able to:

  • Describe the structure and format of the SELECT statement, as well as enhancements that will add functionality and readability to your queries
  • Describe how to eliminate duplicates using the DISTINCT clause
  • Describe the use of column and table aliases
  • Understand and use CASE expressions

Module 4: Querying Multiple Tables

This module describes how to write queries that combine data from multiple sources in Microsoft SQL Server 2016.

Lessons

  • Understanding Joins
  • Querying with Inner Joins
  • Querying with Outer Joins
  • Querying with Cross Joins and Self Joins

Lab : Querying Multiple Tables

  • Writing Queries that use Inner Joins
  • Writing Queries that use Multiple-Table Inner Joins
  • Writing Queries that use Self-Joins
  • Writing Queries that use Outer Joins
  • Writing Queries that use Cross Joins

After completing this module, you will be able to:

  • Explain the fundamentals of joins in SQL Server 2016
  • Write inner join queries
  • Write queries that use outer joins
  • Use additional join types

Module 5: Sorting and Filtering Data

This module describes how to implement sorting and filtering.

Lessons

  • Sorting Data
  • Filtering Data with Predicates
  • Filtering Data with TOP and OFFSET-FETCH
  • Working with Unknown Values

Lab : Sorting and Filtering Data

  • Writing Queries that Filter Data using a WHERE Clause
  • Writing Queries that Sort Data Using an ORDER BY Clause
  • Writing Queries that Filter Data Using the TOP Option

After completing this module, you will be able to:

  • Explain how to add an ORDER BY clause to your queries to control the order of rows displayed in your query's output
  • Explain how to construct WHERE clauses to filter out rows that do not match the predicate.
  • Explain how to limit ranges of rows in the SELECT clause using a TOP option.
  • Explain how to limit ranges of rows using the OFFSET-FETCH option of an ORDER BY clause.
  • Explain how three-valued logic accounts for unknown and missing values, how SQL Server uses NULL to mark missing values, and how to test for NULL in your queries.

Module 6: Working with SQL Server 2016 Data Types

This module introduces the data types SQL Server uses to store data.

Lessons

  • Introducing SQL Server 2016 Data Types
  • Working with Character Data
  • Working with Date and Time Data

Lab : Working with SQL Server 2016 Data Types

  • Writing Queries that Return Date and Time Data
  • Writing Queries that use Date and Time Functions
  • Writing Queries That Return Character Data
  • Writing Queries That Return Character Functions

After completing this module, you will be able to:

  • Explore many of the data types SQL Server uses to store data and how data types are converted between types
  • Explain the SQL Server character-based data types, how character comparisons work, and some common functions you may find useful in your queries
  • Describe data types that are used to store temporal data, how to enter dates and times so they will be properly parsed by SQL Server, and how to manipulate dates and times with built-in functions.

Module 7: Using DML to Modify Data

This module describes how to create DML queries, and why you would want to.

Lessons

  • Inserting Data
  • Modifying and Deleting Data

Lab : Using DML to Modify Data

  • Inserting Data
  • Updating and Deleting Data

After completing this module, you will be able to:

  • Use INSERT and SELECT INTO statements
  • Use UPDATE, MERGE, DELETE, and TRUNCATE.

Module 8: Using Built-In Functions

This module introduces some of the many built in functions in SQL Server 2016.

Lessons

  • Writing Queries with Built-In Functions
  • Using Conversion Functions
  • Using Logical Functions
  • Using Functions to Work with NULL

Lab : Using Built-In Functions

  • Writing Queries That Use Conversion Functions
  • Writing Queries that use Logical Functions
  • Writing Queries that Test for Nullability

After completing this module, you will be able to:

  • Describe the types of functions provided by SQL Server, and then focus on working with scalar functions
  • Explain how to explicitly convert data between types using several SQL Server functions
  • Describe how to use logical functions that evaluate an expression and return a scalar result.
  • Describe additional functions for working with NULL

Module 9: Grouping and Aggregating Data

This module describes how to use aggregate functions.

Lessons

  • Using Aggregate Functions
  • Using the GROUP BY Clause
  • Filtering Groups with HAVING

Lab : Grouping and Aggregating Data

  • Writing Queries That Use the GROUP BY Clause
  • Writing Queries that Use Aggregate Functions
  • Writing Queries that Use Distinct Aggregate Functions
  • Writing Queries that Filter Groups with the HAVING Clause

After completing this module, you will be able to:

  • Describe the built-in aggregate function in SQL Server and write queries using it.
  • Write queries that separate rows using the GROUP BY clause.
  • Write queries that use the HAVING clause to filter groups.

Module 10: Using Subqueries

This module describes several types of subquery and how and when to use them.

Lessons

  • Writing Self-Contained Subqueries
  • Writing Correlated Subqueries

Using the EXISTS Predicate with Subqueries

Lab : Using Subqueries

  • Writing Queries That Use Self-Contained Subqueries
  • Writing Queries That Use Scalar and Multi-Result Subqueries
  • Writing Queries That Use Correlated Subqueries and an EXISTS Clause

After completing this module, you will be able to:

  • Describe where subqueries may be used in a SELECT statement.
  • Write queries that use correlated subqueries in a SELECT statement
  • Write queries that use EXISTS predicates in a WHERE clause to test for the existence of qualifying rows
  • Use the EXISTS predicate to efficiently check for the existence of rows in a subquery.

Module 11: Using Table Expressions

Previously in this course, you learned about using subqueries as an expression that returned results to an outer calling query. Like subqueries, table expressions are query expressions, but table expressions extend this idea by allowing you to name them and to work with their results as you would work with data in any valid relational table. Microsoft SQL Server 2016 supports four types of table expressions: derived tables, common table expression (CTEs), views, and inline table-valued functions (TVFs). In this module, you will learn to work with these forms of table expressions and learn how to use them to help create a modular approach to writing queries.

Lessons

  • Using Views
  • Using Inline Table-Valued Functions
  • Using Derived Tables
  • Using Common Table Expressions

Lab : Using Table Expressions

  • Writing Queries That Use Views
  • Writing Queries That Use Derived Tables
  • Writing Queries That Use Common Table Expressions (CTEs)
  • Writing Queries That Sue Inline Table-Valued Expressions

After completing this module, you will be able to:

  • Write queries that return results from views.
  • Use the CREATE FUNCTION statement to create simple inline TVFs.
  • Write queries that create and retrieve results from derived tables.
  • Write queries that create CTEs and return results from the table expression.

Module 12: Using Set Operators

This module introduces how to use the set operators UNION, INTERSECT, and EXCEPT to compare rows between two input sets.

Lessons

  • Writing Queries with the UNION operator
  • Using EXCEPT and INTERSECT
  • Using APPLY

Lab : Using Set Operators

  • Writing Queries That Use UNION Set Operators and UNION ALL
  • Writing Queries That Use CROSS APPLY and OUTER APPLY Operators
  • Writing Queries That Use the EXCEPT and INTERSECT Operators

After completing this module, students will be able to:

  • Write queries that use UNION to combine input sets.
  • Write queries that use UNION ALL to combine input sets
  • Write queries that use the EXCEPT operator to return only rows in one set but not another.
  • Write queries that use the INTERSECT operator to return only rows that are present in both sets
  • Write queries using the CROSS APPLY operator.
  • Write queries using the OUTER APPLY operator



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