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Basic SELECT Statements
Filtering Data with WHERE
Sorting Data with ORDER BY
Joining Tables
Aggregate Functions (COUNT, SUM, AVG, MIN, MAX)
Grouping Data with GROUP BY
Subqueries
Data Modification (INSERT, UPDATE, DELETE)
Creating and Managing Tables (CREATE, ALTER, DROP)
Indexes
Views
Transactions
Data Types
Constraints
Stored Procedures and Functions
Window Functions
Common Table Expressions (CTEs)
Normalization
Security (Permissions, Roles)
Database Design
