Level Type Beginner Basics (Database, Tables, Basic Queries) 📌 Key Topics You Must Prepare for SQL: SQL Basics – What is SQL, Commands (DDL, DML, DCL, TCL, DQL) Tables and Keys – Primary Key, Foreign Key, Composite Key Basic Queries – SELECT, WHERE, ORDER BY, GROUP BY, HAVING Joins – INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN Subqueries – Simple and Correlated Constraints – NOT NULL, UNIQUE, CHECK, DEFAULT Normalization – 1NF, 2NF, 3NF Indexes – Clustered, Non-Clustered Transactions – COMMIT, ROLLBACK, SAVEPOINT, Isolation Levels Views – Virtual tables using SELECT queries Stored Procedures, Functions, and Triggers Optimization Techniques – Indexing, Query Tuning Window Functions – ROW_NUMBER(), RANK(), DENSE_RANK() Backup and R...
Comments
Post a Comment