diff --git a/.obsidian/app.json b/.obsidian/app.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/.obsidian/app.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/.obsidian/appearance.json b/.obsidian/appearance.json
new file mode 100644
index 0000000..9e26dfe
--- /dev/null
+++ b/.obsidian/appearance.json
@@ -0,0 +1 @@
+{}
\ No newline at end of file
diff --git a/.obsidian/core-plugins.json b/.obsidian/core-plugins.json
new file mode 100644
index 0000000..639b90d
--- /dev/null
+++ b/.obsidian/core-plugins.json
@@ -0,0 +1,33 @@
+{
+  "file-explorer": true,
+  "global-search": true,
+  "switcher": true,
+  "graph": true,
+  "backlink": true,
+  "canvas": true,
+  "outgoing-link": true,
+  "tag-pane": true,
+  "footnotes": false,
+  "properties": true,
+  "page-preview": true,
+  "daily-notes": true,
+  "templates": true,
+  "note-composer": true,
+  "command-palette": true,
+  "slash-command": false,
+  "editor-status": true,
+  "bookmarks": true,
+  "markdown-importer": false,
+  "zk-prefixer": false,
+  "random-note": false,
+  "outline": true,
+  "word-count": true,
+  "slides": false,
+  "audio-recorder": false,
+  "workspaces": false,
+  "file-recovery": true,
+  "publish": false,
+  "sync": true,
+  "bases": true,
+  "webviewer": false
+}
\ No newline at end of file
diff --git a/.obsidian/workspace.json b/.obsidian/workspace.json
new file mode 100644
index 0000000..8922e17
--- /dev/null
+++ b/.obsidian/workspace.json
@@ -0,0 +1,191 @@
+{
+  "main": {
+    "id": "800cf878bc0bfaf6",
+    "type": "split",
+    "children": [
+      {
+        "id": "11934cd0d47e8fe9",
+        "type": "tabs",
+        "children": [
+          {
+            "id": "7b2d07c61479b5c3",
+            "type": "leaf",
+            "state": {
+              "type": "markdown",
+              "state": {
+                "file": "BDD/SQL.md",
+                "mode": "source",
+                "source": false
+              },
+              "icon": "lucide-file",
+              "title": "SQL"
+            }
+          }
+        ]
+      }
+    ],
+    "direction": "vertical"
+  },
+  "left": {
+    "id": "1b6fc5fb025f0ca9",
+    "type": "split",
+    "children": [
+      {
+        "id": "091db656fff611fa",
+        "type": "tabs",
+        "children": [
+          {
+            "id": "a21fd362c8ad7bcb",
+            "type": "leaf",
+            "state": {
+              "type": "file-explorer",
+              "state": {
+                "sortOrder": "alphabetical",
+                "autoReveal": false
+              },
+              "icon": "lucide-folder-closed",
+              "title": "Explorador de archivos"
+            }
+          },
+          {
+            "id": "362954ec695c5c1a",
+            "type": "leaf",
+            "state": {
+              "type": "search",
+              "state": {
+                "query": "",
+                "matchingCase": false,
+                "explainSearch": false,
+                "collapseAll": false,
+                "extraContext": false,
+                "sortOrder": "alphabetical"
+              },
+              "icon": "lucide-search",
+              "title": "Buscar"
+            }
+          },
+          {
+            "id": "6fbb4ecbca265024",
+            "type": "leaf",
+            "state": {
+              "type": "bookmarks",
+              "state": {},
+              "icon": "lucide-bookmark",
+              "title": "Marcadores"
+            }
+          }
+        ]
+      }
+    ],
+    "direction": "horizontal",
+    "width": 300
+  },
+  "right": {
+    "id": "519d5773673c1040",
+    "type": "split",
+    "children": [
+      {
+        "id": "ec141e7a66dc7ec8",
+        "type": "tabs",
+        "children": [
+          {
+            "id": "5a14f2340b0f216e",
+            "type": "leaf",
+            "state": {
+              "type": "backlink",
+              "state": {
+                "file": "BDD/SQL.md",
+                "collapseAll": false,
+                "extraContext": false,
+                "sortOrder": "alphabetical",
+                "showSearch": false,
+                "searchQuery": "",
+                "backlinkCollapsed": false,
+                "unlinkedCollapsed": true
+              },
+              "icon": "links-coming-in",
+              "title": "Enlaces entrantes de SQL"
+            }
+          },
+          {
+            "id": "a6b0ae9bd1ca2aa7",
+            "type": "leaf",
+            "state": {
+              "type": "outgoing-link",
+              "state": {
+                "file": "BDD/SQL.md",
+                "linksCollapsed": false,
+                "unlinkedCollapsed": true
+              },
+              "icon": "links-going-out",
+              "title": "Enlaces salientes de SQL"
+            }
+          },
+          {
+            "id": "adc4b064ae41a637",
+            "type": "leaf",
+            "state": {
+              "type": "tag",
+              "state": {
+                "sortOrder": "frequency",
+                "useHierarchy": true,
+                "showSearch": false,
+                "searchQuery": ""
+              },
+              "icon": "lucide-tags",
+              "title": "Etiquetas"
+            }
+          },
+          {
+            "id": "ae3acc1608d6a4de",
+            "type": "leaf",
+            "state": {
+              "type": "all-properties",
+              "state": {
+                "sortOrder": "frequency",
+                "showSearch": false,
+                "searchQuery": ""
+              },
+              "icon": "lucide-archive",
+              "title": "Todas las propiedades"
+            }
+          },
+          {
+            "id": "b786a3cab1b9744b",
+            "type": "leaf",
+            "state": {
+              "type": "outline",
+              "state": {
+                "file": "BDD/SQL.md",
+                "followCursor": false,
+                "showSearch": false,
+                "searchQuery": ""
+              },
+              "icon": "lucide-list",
+              "title": "Esquema de SQL"
+            }
+          }
+        ]
+      }
+    ],
+    "direction": "horizontal",
+    "width": 300,
+    "collapsed": true
+  },
+  "left-ribbon": {
+    "hiddenItems": {
+      "switcher:Abrir selector rápido": false,
+      "graph:Abrir vista gráfica": false,
+      "canvas:Crear nuevo lienzo": false,
+      "daily-notes:Abrir la nota de hoy": false,
+      "templates:Insertar plantilla": false,
+      "command-palette:Abrir paleta de comandos": false,
+      "bases:Crear nueva base": false
+    }
+  },
+  "active": "7b2d07c61479b5c3",
+  "lastOpenFiles": [
+    "BDD/SQL.md",
+    "BDD"
+  ]
+}
\ No newline at end of file
diff --git a/BDD/SQL.md b/BDD/SQL.md
new file mode 100644
index 0000000..263fa09
--- /dev/null
+++ b/BDD/SQL.md
@@ -0,0 +1 @@
+SQL (Structured Query Language) es un lenguaje de programación estandar que se utilia para gestionar y manipular bases de datos relacionales. Permite realizar operaciones como consulta, insercion, actualizacion y eliminacion de datos almacenados en tablas. Es un lenguaje fundamental del desarrollo web y analisis de datos, y existen varios 
\ No newline at end of file