What's included

• SQL Query for Extraction

  Extracting specific data from a single table. Simple SELECT statements with WHERE clauses. Basic filtering and ordering of results.

• SQL Query for Validation

  Combining data from multiple tables. Summarizing data with aggregate functions (e.g., SUM, COUNT, AVG). Grouping data for insightful reports. Queries involving subqueries or HAVING clauses.

• SQL Optimization

  Complex data transformations and manipulation. Optimizing slow-running queries. Implementing advanced SQL features like Window Functions, CTEs (Common Table Expressions), or Stored Procedures. Designing complex data reports.