docs(project): update database configuration documentation

Updated the database configuration guide to include details on connetion string

Closes #7

doc/DATABASE_CONFIG.md

@@ -5,7 +5,7 @@ Your database configurations are stored in the `.env` file at the root of your p
 1. **Open the `.env` file.**
 2. **Modify the values** for `DB_USER`, `DB_PASSWORD`, and `CONNECT_STRING` with your new database credentials and connection string.
     ```plaintext
-    DB_USER=new_user
+    DB_USER=admin
     DB_PASSWORD=new_password
     CONNECT_STRING=your_new_connection_string
     ```
@@ -16,24 +16,21 @@ Your database configurations are stored in the `.env` file at the root of your p
     ```
 4. **Optional**: Update `HTTPS_PROXY` and `HTTPS_PROXY_PORT` if your application uses a proxy for database connections.
 
-### Apply Changes
-
-For the changes to take effect, you need to restart your application.
-```bash
-    npm run dev
-```
-
-
-### Troubleshooting
+### Updating Wallet Database Connection
 
-If you encounter issues after changing your database configuration:
+To change your wallet database connection:
 
-- **Review the `.env` file**: Ensure there are no typos in the variable names or values.
-- **Check database credentials**: Verify that the user, password, and connection string are correct and that the database user has the necessary permissions.
-- **Inspect logs**: Look for any error messages in your application logs that might indicate what went wrong.
-
-### Notes
+1. Go to `server/utils/db`.
+2. Delete the folder named `wallet`.
+3. Decompress your new wallet there and rename it to `wallet`.
+4. Change the password of the database user to your password.
+5. In `server/utils/db/wallet/tnsnames.ora` file, the first paragraph will contain the information to create your `CONNECT_STRING`:
+    ```plaintext
+    tcps://<host>:<port>/<service_name>
+    ```
 
-- Keep your `.env` file secure, especially when it contains sensitive information like database passwords.
+### Apply Changes
 
-By following these steps, you can successfully update your application's database configurations to reflect new credentials, connection strings, or other related changes.
+For the changes to take effect, you need to restart your application.
+```bash
+npm run dev