Description

Microsoft SQL Server 2019: Querying SQL Server

The Microsoft SQL Server 2019 query SQL Server course is designed for individuals who want to develop their skills in querying and analyzing data using SQL Server 2019. This course covers the fundamentals of Transact-SQL (T-SQL), SQL Server’s query language, and provides practical instruction on writing efficient queries, extracting valuable insights, and manipulating data. It is ideal for data analysts, developers, and anyone looking to enhance their proficiency in SQL Server querying.

Key Features:

• Introduction to T-SQL: Get an overview of Transact-SQL (T-SQL), SQL Server’s query language, including its syntax, structure, and how it extends standard SQL for advanced querying.
• Basic Querying: Learn how to write basic queries using SELECT statements to retrieve and filter data from single and multiple tables, and use WHERE clauses to specify criteria.
• Advanced Query Techniques: Explore advanced querying techniques, including complex joins (INNER JOIN, LEFT JOIN, RIGHT JOIN), subqueries, and set operations (UNION, INTERSECT, EXCEPT), to handle sophisticated data retrieval tasks.
• Data Aggregation and Grouping: Master the use of aggregate functions (SUM, COUNT, AVG, MIN, MAX) and GROUP BY clauses to summarize and analyze data, and use HAVING to filter aggregated results.
• Sorting and Pagination: Learn how to sort query results using ORDER BY clauses and implement pagination to manage large result sets.
• Data Manipulation: Understand how to perform data manipulation operations using INSERT, UPDATE, and DELETE statements to modify data within SQL Server databases.
• Common Table Expressions (CTEs): Discover how to use CTEs to simplify complex queries and improve readability, and how to use recursive CTEs for hierarchical data.
• Window Functions: Explore window functions such as ROW_NUMBER, RANK, DENSE_RANK, and analytical functions to perform advanced calculations and analysis over partitions of data.
• Stored Procedures and Functions: Learn how to create and use stored procedures and user-defined functions to encapsulate business logic and streamline query execution.
• Query Performance Optimization: Gain insights into query performance tuning, including indexing strategies, query execution plans, and techniques for optimizing slow-running queries.
• Error Handling and Transactions: Understand error handling in T-SQL and manage transactions to ensure data integrity and consistency.

This course provides a comprehensive guide to querying SQL Server 2019, equipping participants with the skills needed to write efficient and effective SQL queries for data analysis, reporting, and application development.