sql notes

asboyer · Jun 18, 2024 · 4cb5487 · 4cb5487
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@@ -9,48 +9,45 @@ title: sql notes
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+---
 Notes from [SQL Tutorial - Full Database Course for Beginners](https://www.youtube.com/watch?v=HXV3zeQKqGY)
 
-# SQL Tutorial
+---
+#### What is a Database (DB)?
+- a collection of related information
+- databases can be stored in different ways
+
+Computers + Databases = <3
+: computers are great at keeping track of large amounts of information
 
+Database management Systems (DBMS)
+: a special software program that helps users create and maintain a database
+* makes it easy to manage large amounts of information
+* handles security, backups, imports/exports, concurrency[^1]
+* interact with software applications, ex: programming languages
 
-## INTRO
+**Amazon example:**
+![image](https://github-production-user-asset-6210df.s3.amazonaws.com/52665298/340826529-b25ffa78-cad0-4af8-8d84-0d8b49997147.png?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAVCODYLSA53PQK4ZA%2F20240618%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240618T210959Z&X-Amz-Expires=300&X-Amz-Signature=f8e741dce0d6b122f89a355ec22239faa3db30c3a80fc9d3d8cd16cefc33ac00&X-Amz-SignedHeaders=host&actor_id=52665298&key_id=0&repo_id=817007793)
+Amazon is telling the database management system to alter the database
 
-### What is a Database (DB)?
-- a collection of related information
-- databases can be stored in different ways
+#### **C.R.U.D**: Create, Read, Update, Delete
+* Creating new entries
+* Retrieving
+* Updating
+* Deleting
 
-### Computers + Databases = <3
-- computers are great at keeping track of large amounts of information
-
-### Database management Systems (DBMS)
-- a special software program that helps users create and maintain a database
-    * makes it easy to manage large amounts of information
-    * handles security, backups, imports/exports, concurrency[^1]
-    * interact with software applications, ex: programming languages
-
-### Amazon example:
-![image](https://github.com/asboyer/sql_course/assets/52665298/b25ffa78-cad0-4af8-8d84-0d8b49997147)
-* Amazon is telling the database management system to alter the database
-
-### C.R.U.D
-* stands for Create, Read, Update, Delete
-    * Creating new entries
-    * Retrieving
-    * Updating
-    * Deleting
-* Core 4 operations
-* Any good DBMS can do these things
-
-### Two types of Databases
-* Relational databases (SQL)
+Core 4 operations \
+Any good DBMS can do these things
+
+#### Two types of Databases
+* **Relational databases (SQL)**
     * organize data into one or more tables
     * a unique key identifies each row
-* Non-Relational databases (noSQL)
+* **Non-Relational databases (noSQL)**
     * organize data in anything but a table 
     * key value stores
-    * docuemtns 
+    * documents
 
+---
 
-[^2]: two or more events happening at the same time
+[^1]: two or more events happening at the same time