55366 Querying Data with Transact-SQL


This five-day instructor-led course is intended for IT professionals who wish to use the Transact-SQL language to query and configure Microsoft SQL Server. Students are typically database developers and database administrators, but might also be Business Intelligence developers, report creators, or application developers. In this course, students learn how to query single tables, join data from multiple tables, filter and sort data, modify data, use procedures and functions, and implement error handling.


Create single table SELECT queries
Create multiple table SELECT queries
Filter and sort data
Insert, update, and delete data
Query data using built-in functions
Create queries that aggregate data
Create subqueries
Create queries that use table expressions
Use UNION, INTERSECT, and EXCEPT on multiple sets of data
Implement window functions in queries
Use PIVOT and GROUPING SETS in queries
Use stored procedures in queries
Add error handling to queries
Use transactions in queries

Course Outline:

Module 1: Introduction to Transact-SQL

  • What is Transact-SQL
  • The SELECT statement
  • The WHERE clause
  • Sorting results
  • Calculations
  • CASE expressions

Module 2: Joining tables with Transact-SQL

  • The JOIN clause
  • Inner joins
  • Outer joins
  • Self joins and cross joins

Module 3: Filtering and sorting results

  • Implement the ORDER BY clause
  • Filter data with the WHERE clause
  • Limit the number of rows returned by a query
  • Implement NULL logic

Module 4: SQL Server data types

  • Understand data types
  • Implement string data types
  • Implement temporal data types

Module 5: Inserting, updating and deleting data

  • Insert new records
  • Update existing records
  • Delete data

Module 6: Using SQL Server functions with Transact-SQL

  • Understand function types in SQL Server
  • Convert data using functions
  • Implement logical functions
  • Work with NULL data using functions

Module 7: Aggregating data with Transact-SQL

  • Implement aggregation in SQL Server
  • Group records in SQL Server
  • Filter aggregated data

Module 8: Implement subqueries with Transact-SQL

  • Implement scalar and multi-valued sub-queries
  • Implement correlated subqueries
  • Implement existence checks with subqueries

Module 9: Create queries that use table expressions

  • Create views
  • Create table-valued functions
  • Implement derived tables
  • Implement common table expressions

Module 10: Use UNION, INTERSECT, EXCEPT and APPLY on multiple sets of data

  • Write queries with the UNION operator
  • Write queries with the INTERSECT and EXCEPT operators
  • Write queries with the APPLY operator

Module 11: Implement window functions in queries

  • Understand window functions
  • Impement window functions

Module 12: Use PIVOT and grouping sets in queries

  • Implement PIVOT in queries
  • Implement grouping sets in queries

Module 13: Use stored procedures in queries

  • Query data with stored procedures
  • Interact with stored procedures using input and output parameters
  • Write simple stored procedures
  • Pass dynamic SQL to SQL Server

Module 14: Implement programming features in Transact-SQL

  • Understand T-SQL programming elements
  • Implement loops and conditions in T-SQL queries

Module 15: Add error handling to queries

  • Understand SQL Server error handling
  • Implemet structured exception handling

Module 16: Use transactions in queries

  • Understand database transactions
  • Implement transactions in T-SQL

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