Sync notes and files as of 2025-03-17 19:00:12 UTC

one-data-cookie · one-data-cookie · commit d885b9c4bea8 · 2025-03-17T20:00:12.000+01:00
diff --git a/_notes/data-coding/Learn API.md b/_notes/data-coding/Learn API.md
@@ -1,12 +1,12 @@
 ---
-title: Learn about API
+title: Learn API
 lang: en
 category: data-coding
 tags:
   - learn
 season: autumn
 created: 2024-03-18
-updated: 2024-12-22
+updated: 2025-03-17
 sources: Misc
 ---
 
diff --git a/_notes/data-coding/Learn Git.md b/_notes/data-coding/Learn Git.md
@@ -5,7 +5,7 @@ category: data-coding
 tags: [learn, git]
 season: summer
 created: 2021-02-13
-updated: 2025-02-26
+updated: 2025-03-17
 sources: https://stackoverflow.com/questions/18418718/git-still-adds-and-tracks-folders-marked-in-gitignore
 ---
 
@@ -109,7 +109,7 @@ sources: https://stackoverflow.com/questions/18418718/git-still-adds-and-tracks-
 - Version-control large datasets, esp. in ML projects, using [DVC](https://dvc.org/)
 - [Merging vs Rebasing](https://www.atlassian.com/git/tutorials/merging-vs-rebasing)
 - [Git's data model](https://missing.csail.mit.edu/2020/version-control/)
-- Git uses hashing via [SHA-1](https://en.wikipedia.org/wiki/SHA-1) – maps arbitrary-sized inputs to 160-bit outputs (which can be represented as 40 hexadecimal characters, e.g. commit hashes) but [no longer unbroken](https://shattered.io/); more info in [[Learn about cryptography]]
+- Git uses hashing via [SHA-1](https://en.wikipedia.org/wiki/SHA-1) – maps arbitrary-sized inputs to 160-bit outputs (which can be represented as 40 hexadecimal characters, e.g. commit hashes) but [no longer unbroken](https://shattered.io/); more info in [[Learn cryptography]]
 - There are [many](https://nvie.com/posts/a-successful-git-branching-model/) [different](https://www.endoflineblog.com/gitflow-considered-harmful) [workflows](https://www.atlassian.com/git/tutorials/comparing-workflows/gitflow-workflow), i.e. practices to follow when working on big projects.
 - [Analyse how a Git repo grows over time](https://github.com/erikbern/git-of-theseus)
 - You can also [store your private data](https://github.com/sobolevn/git-secret) inside a git repo
diff --git a/_notes/data-coding/Learn cryptography.md b/_notes/data-coding/Learn cryptography.md
@@ -1,11 +1,12 @@
 ---
-title: Learn about cryptography
+title: Learn cryptography
 lang: en
 category: data-coding
-tags: [learn]
+tags:
+  - learn
 season: summer
 created: 2022-08-22
-updated: 2025-01-03
+updated: 2025-03-17
 sources: https://missing.csail.mit.edu/2020/security/
 ---
 
diff --git a/_notes/data-coding/Learn formatting.md b/_notes/data-coding/Learn formatting.md
@@ -0,0 +1,4 @@
+
+- [Custom Formats Builder](https://customformats.com/): for Microsoft Excel and Google Sheets
+- [`strftime()`](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes): for date formatting, introduced by Unix via C 
+
diff --git a/_notes/data-coding/Use MD5 function to create unique IDs.md b/_notes/data-coding/Use MD5 function to create unique IDs.md
@@ -5,15 +5,15 @@ category: data-coding
 tags: [idea, sql]
 season: spring
 created: 2021-04-03
-updated: 2023-05-06
+updated: 2025-03-17
 sources: https://blog.getdbt.com/one-analysts-guide-for-going-from-good-to-great/
 ---
 
 - I first encountered this function when trying to join two tables together using about eight separate fields. Not ideal.
 - The natural inclination is to create your own ID by simply concatenating a bunch of fields together. These columns are bad because they _kind of_ look like data but operate as an ID. It’s important to have a column whose sole function is to be a unique identifier for that row.
 - Instead, use [MD5 functions](https://docs.aws.amazon.com/redshift/latest/dg/r_MD5.html) to create unique IDs on AWS. IDs that are obviously IDs reduce confusion among junior analyst and end users by removing semi-comprehensible data strings throughout your database.
 - At any rate, be aware that MD5 is [no longer considered strong](https://valerieaurora.org/hash.html) as a hash function, should it contain sensitive information
-- More info on how this works is in [[Learn about cryptography]]
+- More info on how this works is in [[Learn cryptography]]
 ```sql
   select md5('Amazon Redshift')
   # ---

-Original file line number
+Diff line change
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++
 +- [Custom Formats Builder](https://customformats.com/): for Microsoft Excel and Google Sheets
 +- [`strftime()`](https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes): for date formatting, introduced by Unix via C
++