Advanced SQL Skills: Techniques and Optimization

Introduction:

This advanced SQL skills course is designed for those looking to deepen their understanding of complex SQL techniques. With a strong focus on practical application, the course ensures mastery of advanced SQL concepts, coding techniques, and problem-solving approaches. Participants, including those pursuing advanced SQL certification, will engage extensively with the material to ensure clarity and proficiency.

Upon completion, participants will confidently tackle complex SQL queries, complete tasks required for advanced SQL certification, and handle advanced SQL challenges effectively.

Objectives:

At the end of this advanced SQL skills course, participants will be able to:

• Write SELECT queries using wildcard and comparison operators.
• Perform mathematical computations within SQL.
• Aggregate and cross-tabulate data effectively.
• Utilize conditional constructs like IF and CASE in queries.
• Construct and implement UNION queries to combine results.
• Apply error-trapping techniques and manage transactions with commit and rollback.
• Create views and use stored procedures for data manipulation and advanced SQL programming.

Training Methodology:

• Instructor-led sessions
• Practicum
• Situational analysis
• Participative activities
• Group discussions
• Q&A sessions
• Evaluation and feedback

Course Outline:

Unit 1: SQL Scripts

• Writing effective SQL queries
• Comparing script files and stored procedures
• Enhancing SQL code with parameterized queries

Unit 2: Advanced SQL SELECT Statements

• Geometry of JOIN statements
• Using ISNULL() and IS NULL
• Advanced string, date, and conversion functions
• Implementing aggregate functions with GROUP BY and WITH ROLLUP
• Advanced functionality of IF and CASE statements
• Working with UNION queries

Unit 3: DML and Transaction Control

• Performing INSERT, UPDATE, and DELETE operations
• Using computed columns for complex calculations
• Transaction control with commit, rollback, and abort commands

Unit 4: Subqueries and Window Functions

• Constructing efficient subqueries
• Understanding OVER() and OVER(PARTITION BY) functions
• Advanced use of ROW() and RANK() functions

Unit 5: Managing Views

• Creating and managing views
• Using views to retrieve and manage data effectively

Unit 6: Stored Procedures (USP)

• Benefits and architecture of stored procedures
• Implementing and using stored procedures
• Data manipulation with INSERT through stored procedures

Conclusion:

Upon completing this advanced SQL training course, participants will gain a thorough understanding of complex SQL topics. Practical exercises and expert-led training will prepare them for advanced SQL certification and real-world application.