Merge pull request 'Ajout de la section PostgreSQL (il y a prescription :D)' (#20) from psql into main

Reviewed-on: #20

docs/PostgreSQL/2026-02-17-commandes-utiles.md

@@ -0,0 +1,15 @@
+---
+title: "PostgreSQL : Commandes et requêtes utiles"
+author:
+  - JF
+date: 2026-02-17
+---
+## Ne lister que les colonnes d'une table
+```sql
+\set TABLE_NAME 'ma_table'
+SELECT column_name FROM information_schema.columns where table_name = :'TABLE_NAME';
+```
+Afficher toutes les tables et leur colonnes avec un début de nom de table :
+```sql
+SELECT table_name, column_name FROM information_schema.columns where table_name like debutnom%;
+```

mkdocs.yml

@@ -24,6 +24,8 @@ nav:
   - Linux:
     - "Linux/2025-05-20-bash-life.md"
     - "Linux/2019-07-09-manipulations-LVM.md"
+  - PostgreSQL:
+    - "PostgreSQL/2026-02-17-commandes-utiles.md"
   - About: about.md
 theme: readthedocs