DP-080T00 - Querying Data with Microsoft Transact-SQL (replacing 20761)

Reference DP-080T00

Length 2 Day

Modality Formations catalogue


SKU: DP-080T00 Categories: ,

target Objectives

Use SQL Server query tools
Write SELECT statements to retrieve columns from one or more tables
Sort and filter selected data
Use built-in functions to returned data values
Create groups of data and aggregate the results
Modify data with Transact-SQL using INSERT, UPDATE, DELETE and MERGE

tablet Prerequistes

No prerequisites for this course.

check Description

This course will teach the basics of Microsoft's dialect of the standard SQL language: Transact-SQL. Topics include both querying and modifying data in relational databases that are hosted in Microsoft SQL Server-based database systems, including: Microsoft SQL Server, Azure SQL Database and, Azure Synapse Analytics.

check user Audience profile

This course can be valuable for anyone who needs to write basic SQL or Transact-SQL queries. This includes anyone working with data as a data analyst, a data engineer, a data scientist, a database administrator or a database developer. It can also be useful for others peripherally involved with data, or wanting to learn more about working with data such as solution architects, students and technology managers.

Job role: Database Administrator

Discover lesson plan

Module 1: Getting Started with Transact-SQL
In this module you will learn about the basics of the Transact-SQL (T-SQL) language, as well as general properties and terminology of relational databases. This module will also introduce the basic SELECT statement for retrieving data from a table.

Introduction to Transact-SQL

Using the SELECT statement

Lab : Get started with SQL Server query tools and writing queries in T-SQL
After completing this module, students will be able to:

Using a query tool to write and execute queries in Transact-SQL

Understand the basic concepts of relational database and the T-SQL language

Write SELECT statements to retrieve data from a relational database table

Understand basic datatypes and how they are used

Understand the basics of NULL values

Module 2: Sorting and Filtering Query Results
In the module you will learn how to control what data is returned, the order in which it is returned. You will use the ORDER BY clause, with and without paging. You will learn about various kinds of filters that can be used in the WHERE clause to control which data rows are returned. You will also learn how to manage the results by removing duplicates with DISTINCT.

Sorting query results

Filtering the data

Lab : Sort and filter data returned by SELECT queries
After completing this module, students will be able to:

Use ORDER BY to sort results from a T-SQL SELECT statement

Add a TOP clause to limit the ordered rows returned

Page the sorted data with OFFSET-FET

Write WHERE clauses to filter the rows returned

Use DISTINCT to eliminate duplicate rows in the results

Module 3: Using Joins and Subqueries
In this module, you will explore T-SQL queries which access data from multiple tables with various kinds of JOIN operations and simple subqueries.

Using JOIN operations

Using subqueries

Lab : Write queries with JOIN operations
Lab : Write SELECT statements using subqueries
After completing this module, students will be able to:

Write queries accessing data from multiple tables using JOIN operations

Understand the differences between type of JOIN operations: INNER JOIN, OUTER JOIN, CROSS JOIN

Understand how to join a table to itself with a self-join

Write subqueries within a SELECT statement

Understand the difference between scalar and multi-valued subqueries

Understand the difference between correlated and self-contained subqueries

Module 4: Using Built-in Functions
In the module you will explore the use of built-in functions for returning computed or special values in the SELECT list or in the WHERE clause. Functions include math functions, string functions and system functions. There are other types of functions that will be mentioned, but not discussed in detail. You will also learn how to combine rows of data into a single group, providing summary information for the group such as SUM, MIN or MAX.

Getting started with scalar functions

Grouping aggregated results

Lab : Built-in functions
After completing this module, students will be able to:

Write queries using scalar functions

Write queries using aggregate functions

Use GROUP BY to combine data into groups based on a common column value

Understand how HAVING is used to filter groups of rows

Module 5: Modifying Data
In this module, you will learn the T-SQL statements for modifying table data including UPDATE, DELETE and MERGE as well as various options for INSERT including creating a new table with data from an existing table. You will also look at how to have the system automatically supply values for columns as the data is inserted.

Inserting data into tables

Modifying and deleting data

Lab : Modify data
After completing this module, students will be able to:

Insert data into an existing table

Specify that a column should be automatically populating with an IDENTITY or a SEQUENCE value

Modify data using the UPDATE statement

Delete data using the DELETE statement

Modify data using MERGE to synchronize two tables