From 917f67857b96497390a95c83ee91b6d7f5575911 Mon Sep 17 00:00:00 2001
From: ben <ben@hackade.org>
Date: Sat, 18 Oct 2025 10:59:01 +0200
Subject: [PATCH] Ajout d'astuces sur l'utilisation de duckDB

---
 wiki/shell/commands/DuckDB.mdwn | 53 +++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 wiki/shell/commands/DuckDB.mdwn

diff --git a/wiki/shell/commands/DuckDB.mdwn b/wiki/shell/commands/DuckDB.mdwn
new file mode 100644
index 0000000..97f1584
--- /dev/null
+++ b/wiki/shell/commands/DuckDB.mdwn
@@ -0,0 +1,53 @@
+# DuckDB dans un script shell
+
+## Créer une base de donnée:
+
+```
+duckdb database.sql -c "CREATE TABLE IF NOT EXISTS table_name (name VARCHAR PRIMARY KEY, value VARCHAR, param VARCHAR)"
+```
+
+## Afficher la table:
+
+```
+duckdb database.sql -list -c "SELECT name FROM table_name"
+```
+
+## Afficher la table avec une condition:
+
+```
+duckdb database.sql -list -c "SELECT name FROM table_name WHERE name LIKE '%john%"
+```
+
+## Insérer des valeurs:
+
+```
+duckdb database.sql -c "INSERT INTO table_name (name, value) values ('john', '1234')"
+```
+
+## Itérer les valeurs et mettre à jour:
+```
+while read -r LINE; do
+   # some code
+   duckdb database.sql -c "UPDATE table_name SET value = '${VALUE}', param = '${PARAM}' WHERE name = '${LINE}'"
+done < <(duckdb database.sql -list -c "SELECT name FROM table_name" | tail -n +2)
+```
+
+## Faire des requêtes SQL sur un fichier json:
+
+Lecture des données:
+
+```
+duckdb -c 'SELECT * FROM data.json;'
+```
+
+Ajout de données:
+
+```
+duckdb -c "CREATE TABLE data AS SELECT * FROM 'data.json'; INSERT INTO data (name, value, param) values ('product3','dark','color'); COPY (SELECT * FROM data) TO 'data.json';"
+```
+
+Mises à jour des données:
+
+```
+duckdb -c "CREATE TABLE data AS SELECT * FROM 'data.json'; UPDATE data SET name = 'productZ' WHERE value = 'red'; COPY (SELECT * FROM data) TO 'data.json';"
+```