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Querying Data with Transact-SQL

Querying Data with Transact-SQL

Kód: 20761
Microsoft_SQL-Server_Querying-Microsoft-SQL-Server-2016.png
Időtartam:4 nap
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Angol Magyar
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2017-07-24 09:00 - 2017-07-27 17:00Várhatóan indul 2017-09-04 09:00 - 2017-09-07 17:00Várhatóan indul 2017-10-16 09:00 - 2017-10-19 17:00Várhatóan indul 2017-11-27 09:00 - 2017-11-30 17:00Várhatóan indul
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Termékleírás

Az SQL Server-t a standard SQL, az alap Microsoft T-SQL utasítások, szerkezetek mellé számos újdonsággal vértezték fel a Microsoft fejlesztői. Az egyes verziók megjelenésével egyre szélesebb körű lett a T-SQL utasítások tárháza és funkcionalitása. Ez a tanfolyam a széles spektrumú tudás megszerzésének következő állomása, melyen az SQL Server 2016 komplex lekérdezései kerülnek napirendre, illetve bepillanthatunk az SQL lekérdezések működésébe is.

A Microsoft SQL Server adatbázisok lekérdezési lehetőségeinek bemutatása haladó szinten, az alap tanfolyamon megszerzett tudás bővítése, betekintés az extra funkciókba.

Azoknak ajánljuk, akik T-SQL lekérdezések alapjait szeretnék megtanulni, és az SQL Server specifikumok irányában szeretnék ezeket bővíteni, mélyíteni.

A tanfolyam megfelelő a 2014-es verziójú SQL Servert használók részére is, mert a 2016-os és a 2014-es verzió különbségeit is megmutatjuk.

Szükséges előképzettség

  • Alapismeretek relációs adatbázisok területén
  • Tapasztalat Windows környezetben történő munkavégzésben

Kinek ajánljuk

  • Adatbázis-adminisztrátoroknak.
  • Adatbázis-tervező mérnököknek.
  • Business Intelligence szakembereknek.
  • Business analystoknak, riportokat összeállító elemzőknek
  • kliens alkalmazás fejlesztőknek

Tematika

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

Module 2: Introduction to T-SQL Querying

This module introduces the elements of T-SQL and their role in writing queries, describes the use of sets in SQL Server, describes the use of predicate logic in SQL Server, and describes 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

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

Module 4: Querying Multiple Tables

This module explains how to write queries which combine data from multiple sources in SQL Server. The module introduces the use of JOINs in T-SQL queries as a mechanism for retrieving data from multiple tables.Lessons

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

Module 5: Sorting and Filtering Data

This module explains how to enhance queries to limit the rows they return, and to control the order in which the rows are displayed. The module also discusses how to resolve missing and unknown results.Lessons

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

Module 6: Working with SQL Server 2016 Data Types

This module explains the data types SQL Server uses to store data. It introduces the many types of numeric and special-use data types. It also explains conversions between data types, and the importance of type precedence.Lessons

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

Module 7: Using DML to Modify Data

This module describes the use of Transact-SQL Data Manipulation Language to perform inserts, updates, and deletes to your data.Lessons

  • Inserting Data
  • Modifying and Deleting Data

Module 8: Using Built-In Functions

This module introduces the use of functions that are built in to SQL Server Denali, and will discuss some common usages including data type conversion, testing for logical results and nullability.Lessons

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

Module 9: Grouping and Aggregating Data

This module introduces methods for grouping data within a query, aggregating the grouped data and filtering groups with HAVING. The module is designed to help the student grasp why a SELECT clause has restrictions placed upon column naming in the GROUP BY clause as well as which columns may be listed in the SELECT clause.Lessons

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

Module 10: Using Subqueries

This module will introduce the use of subqueries in various parts of a SELECT statement. It will include the use of scalar and multi-result subqueries, and the use of the IN and EXISTS operators.Lessons

  • Writing Self-Contained Subqueries
  • Writing Correlated Subqueries
  • Using the EXISTS Predicate with Subqueries

Module 11: Using Set Operators

This module introduces 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

Module 12: Using Table Expressions

This module introduces T-SQL expressions which return a valid relational table, typically for further use in the query. The module discusses views, derived tables, common table expressions and inline table-valued functions.

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

Module 13: Using Window Ranking, Offset, and Aggregate Functions

This module introduces window functions including ranking, aggregate and offset functions. Much of this functionality is new to SQL Server 2012. It will cover the use of T-SQL functions such as ROW_NUMBER, RANK, DENSE_RANK, NTILE, LAG, LEAD, FIRST_VALUE and LAST_VALUE to perform calculations against a set, or window, of rows.

  • Creating Windows with OVER
  • Exploring Window Functions

Module 14: Pivoting and Grouping Sets

This module discusses techniques for pivoting data in T-SQL as well to introduce the fundamentals of the GROUPING SETS clause. It will also cover the use of GROUP BY ROLLUP and GROUP BY CUBE syntax in SQL Server.

  • Writing Queries with PIVOT      and UNPIVOT
  • Working with Grouping Sets

Module 15: Querying data with Stored Procedures

This module introduces the use of existing stored procedures in a T-SQL querying environment. It discusses the use of EXECUTE, how to pass input and output parameters to a procedure, and how to invoke system stored procedures.

  • Writing Queries with PIVOT      and UNPIVOT
  • Passing Parameters to Stored      Procedures
  • Creating Simple Stored      Procedures
  • Working with Dynamic SQL

Module 16: Programming with T-SQL

This module provides a basic introduction to T-SQL programming concepts and objects. It discusses batches, variables, control of flow elements such as loops and conditionals, how to create and execute dynamic SQL statements, and how to use synonyms.

  • T-SQL Programming Elements
  • Controlling Program Flow

Module 17: Implementing Error Handling

This module introduces the use of error handlers in T-SQL code. It will introduce the difference between compile errors and run-time errors, and will cover how errors affect batches. The module will also cover how to control error handling using TRY/CATCH blocks, the use of the ERROR class of functions, and the use of the new THROW statement.

  • Using TRY / CATCH Blocks
  • Working with Error Information

Module 18: Implementing Transactions

This module introduces the concepts of transaction management in SQL Server. It will provide a high-level overview of transaction properties, cover the basics of marking transactions with BEGIN, COMMIT and ROLLBACK.

  • Transactions and the Database Engine
  • Controlling Transactions

Module 19: Improving Query Performance

This module presents several key guidelines for writing well-performing queries, as well as ways to monitor the execution of your queries and their impact on Microsoft SQL Server

  • Factors in Query Performance
  • Displaying Query Performance      Data

Module 20: Appendix 2: Querying SQL Server Metadata

SQL Server provides access to structured metadata by using a variety of mechanisms, such as system catalog views, system functions, dynamic management objects, and system stored procedures. In this module, you will learn how to write queries to return system metadata using these mechanisms

  • Querying System Catalog      Views and Functions
  • Executing System Stored      Procedures
  • Querying Dynamic Management      Objects

 

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