Redesign a synchronous order workflow as a Kafka event flow, assign clear responsibilities to producers, brokers, consumers, controllers, and supporting tools, then test the consistency, retry, replay, contract, and operational risks before production
Learn how regression models predict continuous values, how linear, polynomial, regularized, and advanced regressors work, and how to evaluate them with a practical Python workflow.
Learn how to map software problems to machine learning approaches, compare supervised and unsupervised learning, understand common algorithm families, and plan a practical workflow from data preparation to optimization and evaluation.
Learn how to connect PHP to MySQL, run commands with mysqli, process SELECT results row by row, build reusable output helpers, track affected rows, read generated IDs, and structure small database tools safely.
Learn how MySQL stores relational data and how to use practical commands for creating databases, inserting records, updating rows, filtering results, sorting output, counting values, and combining tables.
Learn how PHP receives data from web forms, extended URLs, uploaded files, and session variables, with practical patterns for validation, multiple selections, file handling, and multipage workflows.
Learn how to use essential PHP functions for numeric calculations, string cleanup, date formatting, random selection, redirects, script termination, and configuration inspection.
Learn how the main PHP statement types work together in real scripts: assigning values, building expressions, printing browser output, branching with conditions, repeating work with loops, and reusing files with include and require.
Learn how to choose the right Python package for Excel file workflows, read workbook data without opening Excel, generate formatted reports, handle large files, preserve macros, and work with modern and legacy Excel formats.
Learn the Python basics that matter for real data work: variables, objects, data types, strings, lists, dictionaries, loops, functions, modules, dates, formatting, linting, and type hints.