Asynchronous programming is the backbone of modern JavaScript. Whether you’re fetching data from API’s, reading files or managing timers, understanding async patterns is crucial. this...
🥇 SERVICE SELECTION GOLDEN RULE Google always wants the MOST managed service possible. If two answers work → pick the less operational overhead one. 1️⃣...
1. Read the Question Backward First (Most Important Trick) Start with the last line: “What should you do?”“Which two actions should they take?”“Which deployment strategy...
1. IaaS (Infrastructure as a Service) IaaS provides raw infrastructure: We manage OS, runtime, middleware, scaling, security patches. GCP IaaS Services Service Purpose Compute Engine...
The CASE statement is the “if-then-else” of the SQL world. In PostgreSQL, it allows you to add conditional logic directly into your queries without needing...
In PostgreSQL, constraints are rules applied to columns or tables ti prevent invalid data from entering the database. They ensure the accuracy, reliability and integrity...
These three operations are typically performed using the following clauses in a SELECT statement: Operation SQL Clause Function Filtering WHERE Selects which rows to include...
Understanding data types is foundational for optimizing database design, ensuring data integrity, and enhancing application performance. Choosing the Right Data Type Selecting the proper data...