From 0d8ae7984a1762e2b54e7c9e44f4f5d353abab86 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Ortega=20Froysa?= <nicolas@ortegas.org>
Date: Wed, 16 Feb 2022 20:49:41 +0100
Subject: [PATCH] Add example of union

---
 1/GBD/notes/union-example.sql | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 1/GBD/notes/union-example.sql

diff --git a/1/GBD/notes/union-example.sql b/1/GBD/notes/union-example.sql
new file mode 100644
index 0000000..e9dd48f
--- /dev/null
+++ b/1/GBD/notes/union-example.sql
@@ -0,0 +1,5 @@
+-- futbolistas
+
+SELECT salario "euros" FROM futbolistas UNION SELECT presupuesto FROM equipos;
+
+SELECT nombre FROM futbolistas WHERE altura <= ALL(SELECT altura FROM futbolistas);