更新 Service：ezBookkeeping

Service%EF%BC%9AezBookkeeping.md

@@ -32,4 +32,31 @@ WantedBy=multi-user.target
 
 ```bash
 systemctl daemon-reload && systemctl enable ezbookkeeping.service && systemctl start ezbookkeeping.service && systemctl status ezbookkeeping.service
+```
+
+# 使用 
+
+```bash
+sudo -u postgres psql
+```
+
+新建使用者與資料庫
+
+```sql
+CREATE USER ezbookkeeping WITH PASSWORD 'ezbookkeeping';
+
+CREATE DATABASE ezbookkeeping;
+```
+
+設定資料庫權限
+
+```sql
+-- 1. Give ownership of the database to the app user
+ALTER DATABASE ezbookkeeping OWNER TO ezbookkeeping;
+
+-- 2. Give ownership of the public schema to the app user
+ALTER SCHEMA public OWNER TO ezbookkeeping;
+
+-- 3. Ensure the user has create permissions (Crucial for Postgres 15+)
+GRANT USAGE, CREATE ON SCHEMA public TO ezbookkeeping;
 ```