learnmainframes.hashnode.devGitHub with Git in WSL (Ubuntu)To configure GitHub using the WSL terminal in Visual Studio (VS Code), follow these steps. This will allow you to clone, commit, push, and pull repositories using Git from your WSL environment. ✅ Step-by-Step Setup: GitHub with Git in WSL (Ubuntu) �...Jun 16, 2025·2 min read
learnmainframes.hashnode.devReal-World SQL Joins Explained with Modern App Examples (Instagram, Facebook, Google, Amazon)Understanding SQL joins is crucial for any developer or data analyst. To make them more relatable, let’s look at how apps like Instagram, Facebook, Google Ads, YouTube, and Amazon use various SQL join types in their backend systems. 1. INNER JOIN – ...Jun 11, 2025·3 min read
learnmainframes.hashnode.dev🔄 Mastering FOR UPDATE OF and WHERE CURRENT OF in COBOL-DB2: Real-World Use Case + PitfallsGreat! Here's your ready-to-post LinkedIn blog article — complete with clear formatting, emojis, and hashtags to boost engagement. You can also use this on Medium or your personal blog. As mainframe developers, we often need to fetch and update rows...Jun 8, 2025·3 min read
learnmainframes.hashnode.devAbendsAbend S322 - Time abend due to exceeded the alloted CPU time. ABENDU0102 - missing systsprt dd statement.Jun 8, 2025·1 min read
learnmainframes.hashnode.devBank Transaction Processing SystemHere's a **Bank Transaction Processing System** project that combines COBOL, PL/SQL, and Unix/Linux. This project demonstrates legacy system integration, batch processing, and database management. ### **Project Overview** A banking system that proces...Jun 8, 2025·3 min read