SQL From Beginner to Advanced

Most SQL learners can query a database. Few can build logic inside one. This course is where that changes. Here is what you will build: • Transactions & Stored Procedures Stop rewriting the same logic every time. ACID and Rollback keep your data safe when things go wrong. Stored Procedures let you save & reuse that logic inside the database. • Triggers and User Defined Functions Make your database act without being told. Build Triggers for automated responses and reusable UDFs in MySQL and PostgreSQL. • Window Functions and Common Table Expressions (CTEs) Analyze data across related rows without losing the detail. ROW_NUMBER, RANK, and DENSE_RANK rank your results. LEAD, LAG, and SUM OVER compare values across time. Recursive CTEs handle hierarchical data like employee trees. • Database Security and Access Control Control who accesses your database and what they can do. Set up users, roles, GRANT, and REVOKE. Delivered in Hindi and ideal for data analysts and developers ready to go beyond querying. 160+ LearnKartS courses have already put 200,000+ learners ahead of the curve. Start building real database logic now.

You know SQL. But can you build a real system, lock it down, and walk into an interview and prove it? This course gets you to production-ready SQL through security, real projects, & interview preparation. Here is what you will build: • SQL Security & Access Control Prevent SQL injection, secure passwords with hashing and encryption, and implement RBAC so, only the right users access the right data. • Real-World Database Projects Build complete, working database systems for e-commerce, hospital appointments, school management, a bookstore, & food delivery, each with real tables, foreign key relationships, and business analytics queries that mirror actual production work. • Advanced SQL Features Apply views, triggers, & analytics extensions to your projects, so you write SQL the way development teams use it on the job. • SQL Interview Preparation Solve the exact patterns interviewers test for, including window functions, duplicate detection, anti-joins, query optimization, and materialized views, and finish every round with confidence. Built for anyone ready to build real, secure, interview-ready SQL & taught in Hindi. Trusted by 200,000+ learners across 160+ LearnKartS courses. Enroll now!

You know how to query a table. But can you turn it into a business report, fix a slow query, or protect records when a transaction fails? This course takes you into analytics, optimization, & transaction management on real e-commerce data. Here’s what you will build: • Aggregation & Reporting Turn raw data into business insights by making use of COUNT, SUM, AVG, MIN, and MAX with GROUP BY and HAVING. Combine JOINs with aggregation to produce monthly sales reports and customer summaries. • Subqueries & Advanced Filtering Answer complex data questions employing subqueries inside WHERE, SELECT, and FROM, & apply IN, NOT IN, ANY, ALL, and EXISTS for retrieving insights; no single JOIN can give you. • Views, Indexes & Query Performance Build Views for reusable query logic, add Indexes to speed up how your database finds data, & improve query performance on real production tables. • Transactions & Data Safety Protect your data using COMMIT, ROLLBACK, and SAVEPOINT through a real bank transfer example that shows exactly how transactions prevent data loss. Taught in Hindi & built for analysts, developers, and data professionals. Trusted by 200,000+ learners across 160+ LearnKartS courses. Start today.

When the data you need lives across five tables and one wrong query sends you back to square one, basic SQL is not enough. This course takes you from basic filtering to full data control across querying, table management, & joining multiple data sources. Here's what you will build: • SQL Filtering & Querying Retrieve exactly the data you require using [HN1.1][DR1.2]WHERE clauses, logical operators, range operators, pattern matching with LIKE & ILIKE, and NULL checking mainly across real tables. • Data Types, Table Creation, & Constraints Build reliable tables from scratch using the right data types, ON DELETE rules, and SQL Constraints so your data holds up from day one. • Data Manipulation & Table Management Add, update, remove, & replace records confidently. Run full CRUD cycles and manage tables by making use of ALTER, DROP, and TRUNCATE across MySQL and PostgreSQL. • SQL Joins & Subqueries Connect data across multiple tables using INNER, LEFT, RIGHT, FULL OUTER, SELF, and CROSS JOINs. Work through JOIN versus Subquery with practice problems until the logic sticks. Taught in Hindi & built for anyone ready to go beyond basic queries. Trusted by 200,000+ learners across 160+ LearnKartS courses. Start now!