--- title: "#reference articles | Hashnode" description: "Explore 29 articles tagged #reference on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/reference" --- Tag # #reference 29 posts · 2 followers [SapotaCorp](https://hashnode.com/@sapotacorpvn) · [May 24](https://hashnode.com/posts/marketing-cloud-connect-components-and-engagement-checklist/6a12806e029687802aaaf60d) ### [Marketing Cloud Connect Components and Engagement Checklist](https://sapotacorpvn.hashnode.dev/marketing-cloud-connect-components-and-engagement-checklist?utm_source=hashnode&utm_medium=feed) Reference for every Marketing Cloud Connect component we use in production, plus the checklist we run on every engagement that includes a Salesforce CRM integration. 3 min read · [sapotacorpvn.hashnode.dev](https://sapotacorpvn.hashnode.dev/marketing-cloud-connect-components-and-engagement-checklist?utm_source=hashnode&utm_medium=feed) [SapotaCorp](https://hashnode.com/@sapotacorpvn) · [May 24](https://hashnode.com/posts/the-sfmc-pre-send-checklist-we-run-before-every-production-send/6a128050ba30e45856cdd5f5) ### [The SFMC Pre-Send Checklist We Run Before Every Production Send](https://sapotacorpvn.hashnode.dev/the-sfmc-pre-send-checklist-we-run-before-every-production-send?utm_source=hashnode&utm_medium=feed) Eleven items that take five minutes and prevent 90% of 'oh no' production incidents. The checklist our team runs before hitting Send on any SFMC campaign. 4 min read · [sapotacorpvn.hashnode.dev](https://sapotacorpvn.hashnode.dev/the-sfmc-pre-send-checklist-we-run-before-every-production-send?utm_source=hashnode&utm_medium=feed) [SapotaCorp](https://hashnode.com/@sapotacorpvn) · [May 24](https://hashnode.com/posts/six-sfmc-features-that-solve-problems-most-teams-dont-know-about/6a127f49ddd318bf23cb95d0) ### [Six SFMC Features That Solve Problems Most Teams Don't Know About](https://sapotacorpvn.hashnode.dev/six-sfmc-features-that-solve-problems-most-teams-dont-know-about?utm_source=hashnode&utm_medium=feed) Multilingual Content Blocks, Data Retention Policy, Random Data Extension, and three more SFMC features that appear in certification questions but get under-used in production. 5 min read · [sapotacorpvn.hashnode.dev](https://sapotacorpvn.hashnode.dev/six-sfmc-features-that-solve-problems-most-teams-dont-know-about?utm_source=hashnode&utm_medium=feed) [SapotaCorp](https://hashnode.com/@sapotacorpvn) · [May 24](https://hashnode.com/posts/six-automation-studio-patterns-we-use-on-every-sfmc-engagement/6a127d7d0b516b808036b0f6) ### [Six Automation Studio Patterns We Use on Every SFMC Engagement](https://sapotacorpvn.hashnode.dev/six-automation-studio-patterns-we-use-on-every-sfmc-engagement?utm_source=hashnode&utm_medium=feed) Starting Sources, Activity types, and six composable patterns that show up on almost every Marketing Cloud build. A reference sheet for SFMC teams. 3 min read · [sapotacorpvn.hashnode.dev](https://sapotacorpvn.hashnode.dev/six-automation-studio-patterns-we-use-on-every-sfmc-engagement?utm_source=hashnode&utm_medium=feed) [SapotaCorp](https://hashnode.com/@sapotacorpvn) · [May 24](https://hashnode.com/posts/seven-types-of-data-extensions-we-use-on-sfmc-projects/6a127cc1ba30e45856c44078) ### [Seven Types of Data Extensions We Use on SFMC Projects](https://sapotacorpvn.hashnode.dev/seven-types-of-data-extensions-we-use-on-sfmc-projects?utm_source=hashnode&utm_medium=feed) Beyond the basic sendable DE, SFMC has several DE types with specific behaviors. Knowing when to use each saves architecture rebuilds later. Here's the reference sheet we use. 4 min read · [sapotacorpvn.hashnode.dev](https://sapotacorpvn.hashnode.dev/seven-types-of-data-extensions-we-use-on-sfmc-projects?utm_source=hashnode&utm_medium=feed) [Krishna Sharma](https://hashnode.com/@Krishna1911) · [Feb 4](https://hashnode.com/posts/essential-psql-commands-for-postgresql/69831bc117b0ac9e5cfdd052) ### [Essential psql Commands for PostgreSQL](https://kris-learn.hashnode.dev/essential-psql-commands-for-postgresql?utm_source=hashnode&utm_medium=feed) psql is the interactive terminal client for PostgreSQL. It lets you connect to databases, run SQL queries, and use powerful meta commands for database management. Connecting to PostgreSQL (Note : here the user is named as “potatoes“, and DB as “mypo... 2 min read · [kris-learn.hashnode.dev](https://kris-learn.hashnode.dev/essential-psql-commands-for-postgresql?utm_source=hashnode&utm_medium=feed) [Jason Clintford](https://hashnode.com/@jasonclintford) · [Dec 10, 2025](https://hashnode.com/posts/the-world-of-audio-technology-and-the-audiophile/693a066135250a3be66f2d8b) ### [The world of audio technology and the audiophile](https://clintford.tech/the-world-of-audio-technology-and-the-audiophile?utm_source=hashnode&utm_medium=feed) Diving deep into the marketing and buzzword-filled vague world of audiophile equipment and busting myths and thousand-dollar price tags. 7 min read · [clintford.tech](https://clintford.tech/the-world-of-audio-technology-and-the-audiophile?utm_source=hashnode&utm_medium=feed) [Ahmad W Khan](https://hashnode.com/@AhmadWKhan) · [Jul 5, 2025](https://hashnode.com/posts/the-complete-terraform-guide/68694422ec7137c1405f3605) ### [The Complete Terraform Guide](https://blog.ahmadwkhan.com/the-complete-terraform-guide?utm_source=hashnode&utm_medium=feed) A one-stop complete basic to advanced terrafrom guide by Ahmad W Khan 60 min read · [blog.ahmadwkhan.com](https://blog.ahmadwkhan.com/the-complete-terraform-guide?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/the-complete-terraform-guide/68694422ec7137c1405f3605) [Adam Bieganski](https://hashnode.com/@abieganski) · [Apr 20, 2025](https://hashnode.com/posts/the-best-programmers/68051098cab15856492165d0) ### [The Best Programmers](https://techlead.ink/the-best-programmers?utm_source=hashnode&utm_medium=feed) So just a quick recommendation — this blog post has a lot of good stuff: https://endler.dev/2025/best-programmers/ The most important to me would be: 📑Read the Reference If there was one thing that I should have done as a young programmer, it would... 3 min read · [techlead.ink](https://techlead.ink/the-best-programmers?utm_source=hashnode&utm_medium=feed) [Tuanhdotnet](https://hashnode.com/@tuananh8) · [Mar 23, 2025](https://hashnode.com/posts/understanding-hard-links-and-soft-links-symbolic-links-in-linux/67dfcdaa33e472f7d77b3503) ### [Understanding Hard Links and Soft Links (Symbolic Links) in Linux](https://tuanhnet.hashnode.dev/understanding-hard-links-and-soft-links-symbolic-links-in-linux?utm_source=hashnode&utm_medium=feed) When working with Linux, file management is essential for efficient system navigation and maintenance. Two important concepts that often confuse new users are hard links and soft links (also known as symbolic links). Both have their specific use ... 5 min read · [tuanhnet.hashnode.dev](https://tuanhnet.hashnode.dev/understanding-hard-links-and-soft-links-symbolic-links-in-linux?utm_source=hashnode&utm_medium=feed)