20761 Querying Data with Transact-SQL
Analyytikkotason TSQL:ää!
Hyvät SQL-taidot tuottavat parempia ja nopeampia sovelluksia, raportteja ja analyyseja tietokannan datasta.
Tällä kurssilla poraudutaan SQL Serverin vaativampiin kyselyihin eli asioihin, joita tarvitaan esim. tietovarastolatauksissa tai Data-analytiikassa.
Aiheina ovat mm. Over-kyselyt, supersummaukset, CTE-kyselyrakenteet, Merge, Output, Apply, virhekäsittely ja transaktioiden hallinta
Esitietovaatimukset
Koska kurssi on lyhennetty 2-päiväiseksi (virallinen 5 pv.), niin osallistujilla tulee olla SQL-kielen perusteet jo hallinnassa (esim. Joinit, Group By ja alikyselyt)
Sisältö
Alla on kurssin virallinen sisältö, josta siis käydään läpi vain vaativammat osuudet.
Module 1: Introduction to Microsoft SQL Server 2016
- 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
- Introducing T-SQL
- Understanding Sets
- Understanding Predicate Logic
- Understanding the Logical Order of Operations in SELECT statements
Module 3: Writing SELECT Queries
- Writing Simple SELECT Statements
- Eliminating Duplicates with DISTINCT
- Using Column and Table Aliases
- Writing Simple CASE Expressions
Module 4: Querying Multiple Tables
- Understanding Joins
- Querying with Inner Joins
- Querying with Outer Joins
- Querying with Cross Joins and Self Joins
Module 5: Sorting and Filtering Data
- Sorting Data
- Filtering Data with Predicates
- Filtering Data with TOP and OFFSET-FETCH
- Working with Unknown Values
Module 6: Working with SQL Server 2016 Data Types
- Introducing SQL Server 2016 Data Types
- Working with Character Data
- Working with Date and Time Data
Module 7: Using DML to Modify Data
- Inserting Data
- Modifying and Deleting Data
Module 8: Using Built-In Functions
- Writing Queries with Built-In Functions
- Using Conversion Functions
- Using Logical Functions
- Using Functions to Work with NULL
Module 9: Grouping and Aggregating Data
- Using Aggregate Functions
- Using the GROUP BY Clause
- Filtering Groups with HAVING
Module 10: Using Subqueries
- Writing Self-Contained Subqueries
- Writing Correlated Subqueries
- Using the EXISTS Predicate with Subqueries
Module 11: Using Table Expressions
- Using Views
- Using Inline Table-Valued Functions
- Using Derived Tables
- Using Common Table Expressions
Module 12: Using Set Operators
- Writing Queries with the UNION operator
- Using EXCEPT and INTERSECT
- Using APPLY
Module 13: Using Windows Ranking, Offset, and Aggregate Functions
- Creating Windows with OVER
- Exploring Window Functions
Module 14: Pivoting and Grouping Sets
- Writing Queries with PIVOT and UNPIVOT
- Working with Grouping Sets
Module 15: Executing Stored Procedures
- Querying Data with Stored Procedures
- Passing Parameters to Stored procedures
- Creating Simple Stored Procedures
- Working with Dynamic SQL
Module 16: Programming with T-SQL
- T-SQL Programming Elements
- Controlling Program Flow
Module 17: Implementing Error Handling
- Implementing T-SQL error handling
- Implementing structured exception handling
Module 18: Implementing Transactions
- Transactions and the database engines
- Controlling transactions
