Basics of SQL

Understand and validate backend data structures.
Support in Decision-Making	Provide data-driven insights.

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🚀 SQL in Real-World BA Scenarios

• Generating customer reports.

• Checking data consistency.

• Extracting KPIs (Key Performance Indicators).

• Supporting data migration projects.

• Creating ad-hoc queries for business users.

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🔑 Summary of SQL Essentials

Concept	Purpose
SELECT	Retrieve data
INSERT	Add new data
UPDATE	Modify existing data
DELETE	Remove data
CREATE/ALTER/DROP	Manage tables
WHERE	Filter results
JOINs	Combine data from multiple tables
GROUP BY / HAVING	Aggregate data
ORDER BY	Sort results