lint all files

2024-01-16 13:48:46 +00:00
parent b515ba4458
commit a321b0ce99
45 changed files with 66985 additions and 23206 deletions
--- a/Systems/Week
+++ b/Systems/Week
@@ -0,0 +1,16 @@
+### [Relational Algebra - Recap](obsidian://open?vault=Computer%20Science%20Year%201&file=Semester%201%2FDatabase%20Systems%2FWeek%2010%2FWeek%2010)
+
+- High level & procedural
+- Defines how to build relations
+
+#### Data Manipulation Language
+
+- Provides set of operations
+- Data retrieval - query language
+- ex. SQL
+
+#### Closure
+
+- Operations work on one or more relations to define another relation without changing the original
+- Both operands and results are relations, output from one operation can become the input for another operation.
+- This allows nested expressions.