🔍 1. Advanced Query Techniques

  • Subqueries 📌
    Use nested queries to retrieve data dynamically.

    Subquery

  • JOINs with Filters 🔄
    Combine multiple tables using INNER, LEFT, or RIGHT JOINs.

    JOINs

  • Window Functions 📊
    Analyze data with ROW_NUMBER(), RANK(), or NTILE().

    Window_Functions

🛡 2. Transaction Management

  • ACID Principles 📜
    Ensure data consistency with Atomicity, Consistency, Isolation, and Durability.

    ACID

  • SAVEPOINT & ROLLBACK 🔄
    Control transaction boundaries for error recovery.

    Transaction_Management

🔍 3. Index Optimization

  • B-tree vs Hash Indexes 📊
    Choose the right index type for query performance.

    B_tree

  • Covering Indexes 🧠
    Improve speed by including all query columns in the index.

    Covering_Indexes

⚠️ 4. Security Best Practices

  • Least Privilege Access 🛡
    Restrict database permissions to minimize risks.

    Least_Privilege

  • Prevent SQL Injection 🛑
    Use parameterized queries instead of string concatenation.

    SQL_Injection

For deeper insights into SQL fundamentals, visit our SQL Basics Tutorial. 📘
Explore more advanced topics like database replication or query optimization strategies. 🌐