{"id":23069827,"url":"https://github.com/patilni3/etl-notes","last_synced_at":"2026-01-17T07:14:17.225Z","repository":{"id":266250895,"uuid":"897821894","full_name":"PatilNi3/ETL-Notes","owner":"PatilNi3","description":"Extract Transform Load all theoretical notes","archived":false,"fork":false,"pushed_at":"2024-12-03T09:58:13.000Z","size":84,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-04-03T10:13:29.542Z","etag":null,"topics":["datawarehouse","etl","etl-pipeline","extract","load","schema","transform"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/PatilNi3.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-12-03T09:52:30.000Z","updated_at":"2024-12-05T04:21:44.000Z","dependencies_parsed_at":null,"dependency_job_id":"00f1695b-4186-4770-a870-050a824ab7f3","html_url":"https://github.com/PatilNi3/ETL-Notes","commit_stats":null,"previous_names":["patilni3/etl-notes"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/PatilNi3/ETL-Notes","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/PatilNi3%2FETL-Notes","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/PatilNi3%2FETL-Notes/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/PatilNi3%2FETL-Notes/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/PatilNi3%2FETL-Notes/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/PatilNi3","download_url":"https://codeload.github.com/PatilNi3/ETL-Notes/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/PatilNi3%2FETL-Notes/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28503259,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-17T06:57:29.758Z","status":"ssl_error","status_checked_at":"2026-01-17T06:56:03.931Z","response_time":85,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["datawarehouse","etl","etl-pipeline","extract","load","schema","transform"],"created_at":"2024-12-16T06:17:33.151Z","updated_at":"2026-01-17T07:14:17.206Z","avatar_url":"https://github.com/PatilNi3.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# ETL\n\nThis repository contains an ETL (Extract, Transform, Load) pipeline that helps with the efficient management, transformation, and storage of data. It provides an in-depth understanding of ETL concepts, processes, and best practices for data engineering.\n\n## Table of Contents\n1. What is ETL?\n2. Difference between ETL and ELT\n3. Introduction to OLTP and OLAP\n4. Difference between OLTP and OLAP\n5. What is ACID Property?\n6. What is Data Warehouse? Need of Data Warehouse?\n7. Data Warehouse Architecture\n8. What are Data Marts and its Types?\n9. What is ODS (Operational Data Store)?\n10. What is Dimensional Modeling?\n11. What is Fact and Dimension?\n12. What is Fact Table and Dimension Table?\n13. Star, Snowflake, and Galaxy Schema\n14. What is Normalization and Denormalization?\n15. What are the Different Normal Forms?\n16. Slowly Changing Dimension\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpatilni3%2Fetl-notes","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpatilni3%2Fetl-notes","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpatilni3%2Fetl-notes/lists"}