--- title: "#guid articles | Hashnode" description: "Explore 10 articles tagged #guid on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/guid" --- Tag # #guid 10 posts · 0 followers [brunovt](https://hashnode.com/@brunovt1992) · [Jun 24](https://hashnode.com/posts/pick-your-cut-a-chef-s-guide-to-guid-versions/6a3bcc3f95e7c46e016f05ca) ### [Pick Your Cut: A Chef's Guide to GUID Versions](https://brunovt.hashnode.dev/pick-your-cut-a-chef-s-guide-to-guid-versions?utm_source=hashnode&utm_medium=feed) Nine cuts from the same 128 bits. Compare every GUID version, v1 to v8 and nil. Then choose the right one for your dish. 6 min read · [brunovt.hashnode.dev](https://brunovt.hashnode.dev/pick-your-cut-a-chef-s-guide-to-guid-versions?utm_source=hashnode&utm_medium=feed) [brunovt](https://hashnode.com/@brunovt1992) · [Apr 13](https://hashnode.com/posts/guid-v4-vs-v7-why-you-should-care-about-the-shift/69dca99419156797cc90e429) ### [GUID v4 vs v7: Why You Should Care About the Shift](https://brunovt.hashnode.dev/guid-v4-vs-v7-why-you-should-care-about-the-shift?utm_source=hashnode&utm_medium=feed) ou are reviewing a pull request and see Guid.NewGuid(), uuid.uuid4(), or crypto.randomUUID(). It works, it compiles, and no one usually questions it. 5 min read · [brunovt.hashnode.dev](https://brunovt.hashnode.dev/guid-v4-vs-v7-why-you-should-care-about-the-shift?utm_source=hashnode&utm_medium=feed) [brunovt](https://hashnode.com/@brunovt1992) · [Apr 2](https://hashnode.com/posts/guid-vs-uuid-what-they-are-and-how-to-generate-them/69ce1b172d4d5bd0f0b7d257) ### [GUID vs UUID: What They Are and How to Generate Them](https://brunovt.hashnode.dev/guid-vs-uuid-what-they-are-and-how-to-generate-them?utm_source=hashnode&utm_medium=feed) If you’ve ever seen an identifier like f47ac10b-58cc-4372-a567-0e02b2c3d479, you’ve encountered a GUID or UUID. These are 128-bit identifiers meant to 3 min read · [brunovt.hashnode.dev](https://brunovt.hashnode.dev/guid-vs-uuid-what-they-are-and-how-to-generate-them?utm_source=hashnode&utm_medium=feed) [Marcus Costa](https://hashnode.com/@marcusfreitascosta) · [Dec 25, 2025](https://hashnode.com/posts/escolhendo-ids-no-csharp-do-caos-a-elegancia-do-legado-do-guid-v7/697160add9b7e065c12e3b1a) ### [Escolhendo IDs no C#: Do Caos do Legado à Elegância do Guid V7](https://mvfc.hashnode.dev/escolhendo-ids-no-csharp-do-caos-a-elegancia-do-legado-do-guid-v7?utm_source=hashnode&utm_medium=feed) Entenda as vantagens do Guid V7 em C# 7 min read · [mvfc.hashnode.dev](https://mvfc.hashnode.dev/escolhendo-ids-no-csharp-do-caos-a-elegancia-do-legado-do-guid-v7?utm_source=hashnode&utm_medium=feed) [Lambert WANGI](https://hashnode.com/@owan) · [Sep 8, 2025](https://hashnode.com/posts/une-erreur-frequente-et-couteuse-stocker-un-guid-en-string/68bf0c02d01dd4adccd97af7) ### [Une erreur fréquente et coûteuse : stocker un GUID en String](https://owan.hashnode.dev/une-erreur-frequente-et-couteuse-stocker-un-guid-en-string?utm_source=hashnode&utm_medium=feed) Impact du typage sur les performances et le stockage dans un projet informatique 4 min read · [owan.hashnode.dev](https://owan.hashnode.dev/une-erreur-frequente-et-couteuse-stocker-un-guid-en-string?utm_source=hashnode&utm_medium=feed) [Moustafa Khalil](https://hashnode.com/@SharpBIM) · [Nov 4, 2024](https://hashnode.com/posts/mapping-ifc-guids-between-revit-and-exported-files/6728ef63bd68f0d1842a04f4) ### [Mapping IFC GUIDs Between Revit and Exported Files](https://sharpbim.hashnode.dev/mapping-ifc-guids-between-revit-and-exported-files?utm_source=hashnode&utm_medium=feed) Understanding the IFC GUID Mapping Between Revit and Exported IFC Files Working with BIM projects in Revit often involves exporting models to the Industry Foundation Classes (IFC) format, a crucial step for interoperability in construction projects. ... 4 min read · [sharpbim.hashnode.dev](https://sharpbim.hashnode.dev/mapping-ifc-guids-between-revit-and-exported-files?utm_source=hashnode&utm_medium=feed) [Gor Grigoryan](https://hashnode.com/@gor8808) · [Aug 20, 2024](https://hashnode.com/posts/how-to-effectively-manage-unique-identifiers-at-scale/66c4dea5fd5e7dd1b40d4a81) ### [How to Effectively Manage Unique Identifiers at Scale: From GUIDs to Snowflake IDs and Other Modern Solutions](https://freecodecamp.org/news/how-to-effectively-manage-unique-identifiers-at-scale?utm_source=hashnode&utm_medium=feed) What Are Unique Identifiers? 🪪 Unique identifiers (UIDs) are crucial components in software engineering and data management. They serve as distinct references for entities within a system and ensure that each item – whether a database record, a user... 21 min read · [freecodecamp.org](https://freecodecamp.org/news/how-to-effectively-manage-unique-identifiers-at-scale?utm_source=hashnode&utm_medium=feed) [Emmanuel Tissera](https://hashnode.com/@emmti) · [Aug 27, 2015](https://hashnode.com/posts/guid-or-varchar36/6326e7d67ae3b59ef00654b6) ### [GUID or Varchar(36)?](https://emmti.com/guid-or-varchar36?utm_source=hashnode&utm_medium=feed) While working on an application which had a foreign key GUID reference, we had to change the implementation for that field to accept a string. Then we came across the question as to whether GUIDs or a Varchar(36) field would perform better? First o... 2 min read · [emmti.com](https://emmti.com/guid-or-varchar36?utm_source=hashnode&utm_medium=feed)