From 0b8c13a2400aa8a9e0c6f71d0f39c9e6161d2e3c Mon Sep 17 00:00:00 2001
From: Patrick Schulze <patrick.schulze.ofp@gmail.com>
Date: Thu, 16 Apr 2026 20:38:47 +0200
Subject: [PATCH] homework query (AG) 16.04.26

---
 15_4_26.md | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 15_4_26.md

diff --git a/15_4_26.md b/15_4_26.md
new file mode 100644
index 0000000..c707f0f
--- /dev/null
+++ b/15_4_26.md
@@ -0,0 +1,43 @@
+CREATE DATABASE AG;
+USE AG;
+
+CREATE TABLE schueler (
+    SNR int PRIMARY KEY,
+    Name varchar(255),
+    Vorname varchar(255),
+    Klasse int
+);
+
+CREATE TABLE lehrkraft (
+    Kuerzel varchar(3) PRIMARY KEY,
+    Name varchar(255),
+    Vorname varchar(255)
+);
+
+CREATE TABLE ag (
+    AGName varchar(255) PRIMARY KEY,
+    Raum varchar(255),
+    Tag date,
+    Stunden time,
+    AnzahlSus int,
+    Kuerzel varchar(3),
+    FOREIGN KEY (Kuerzel) REFERENCES lehrkraft(Kuerzel)
+);
+
+CREATE TABLE veranstaltung (
+    verNr int PRIMARY KEY,
+    Dauer time,
+    Ende date,
+    Start date,
+    Bezeichnung varchar(255),
+    AGName varchar(255),
+    FOREIGN KEY (AGName) REFERENCES ag(AGName)
+);
+
+CREATE TABLE besucht (
+    AGName varchar(255),
+    SNR int,
+    PRIMARY KEY (AGName, SNR),
+    FOREIGN KEY (AGName) REFERENCES ag(AGName),
+    FOREIGN KEY (SNR) REFERENCES schueler(SNR)
+);