SQL Course in Karol Bagh, Delhi (Database Design)

SQL Course in Karol Bagh | PostgreSQL, MySQL & Database Design Training

Data analysts, backend developers, and software engineering aspirants in Karol Bagh can master relational database architecture with TGC India's advanced SQL & Relational Database Design Course. Attend hands-on classroom lab sessions at our nearby South Extension & Preet Vihar Campuses (Blue Line to Preet Vihar / Yellow Line interchange to South Ex) or enroll in live interactive online batches with 100% placement support and query performance defense.

Comprehensive SQL & Database Curriculum

• Module 1: Database Architecture & Relational Modeling: Relational theory, Entity-Relationship Diagrams (ERDs), Normalization (1NF, 2NF, 3NF, BCNF), Primary and Foreign keys, constraints, and data integrity.
• Module 2: Advanced Querying & Multi-Table Joins: DDL & DML statements, complex multi-table joins (INNER, LEFT, RIGHT, FULL OUTER, CROSS, SELF joins), aggregation with GROUP BY, and HAVING filter conditions.
• Module 3: Subqueries & Common Table Expressions (CTEs): Correlated subqueries, inline views, Common Table Expressions (WITH clauses), recursive CTEs for hierarchical organizational data, and set operators (UNION, INTERSECT, EXCEPT).
• Module 4: Analytical SQL & Window Functions: Ranking functions (ROW_NUMBER, RANK, DENSE_RANK, NTILE), value window functions (LAG, LEAD, FIRST_VALUE), rolling aggregations, and running totals.
• Module 5: Stored Procedures, Triggers & ACID Transactions: Writing stored functions and procedures, trigger events, transaction control (BEGIN, COMMIT, ROLLBACK), concurrency control, and row-level locking.
• Module 6: Indexing, Query Optimization & Backend Integration: B-Tree, Hash, and GIN indexing, analyzing query execution plans (`EXPLAIN ANALYZE`), query tuning, and connecting databases to Node.js/Python via ORMs (Prisma / SQLAlchemy).

Frequently Asked Questions for Karol Bagh Students