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Students and parents can use the Bagmati Province ECIS portal as one of the ways to check whether a consultancy is listed in the provincial system database. Please note: This is a Bagmati Province portal, not the central Government of Nepal’s nationwide verification system. The purpose of this video is simply to encourage students to research and verify consultancies before making decisions. Always verify through multiple official sources before proceeding with any consultancy.
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Auto-increment IDs cause major challenges when scaling a system across multiple distributed databases. In a single database auto-incrementing a number by one for each new record is simple and consistent. When you distribute the data across multiple servers they can no longer easily coordinate the next number. One solution is to configure each server with a unique starting offset and a fixed increment step. For example with three servers the first starts at one the second at two and the third at
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System Design: Building a Bulletproof Payment Gateway! 🚀 Basic payment setups fail during network timeouts. To block catastrophic duplicate charges, enforce client-generated idempotency keys (UUIDs). The server saves this key first; if a duplicate request arrives, it immediately returns the cached result instead of re-charging the buyer. Never overwrite database rows to update payment statuses. Instead, implement an immutable ledger where every state change—authorized, captured, or refunded—cre
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TikTokkodekloud
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SQL vs. NoSQL Databases The choice between SQL and NoSQL impacts how your application stores, scales, and manages data. SQL (Relational Databases) SQL databases use a structured, table-based format with rows and columns. They rely on a predefined schema, meaning you must define the data structure before adding any information. Strengths: Excellent for complex queries, multi-row transactions, and maintaining strict data integrity (ACID compliance). Best Use: Financial systems, accounting software
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System Design: Background Job-Processing Workers! Basic application setups fail when executing long-running tasks like email delivery sequentially inside the user request loop. Slow downstream services cause high latency, while API timeouts trigger immediate request failures for the end user. Never risk data drift by pushing straight to a message queue after a database save, because a crash between those two actions drops the task completely. Instead, implement the Transactional Outbox pattern t
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TikTokkodekloud
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