# Database Schema Setup

Once the database service is running, you must create the schema before using the backend. ⚠️ This step is mandatory. The backend will not function until the schema is loaded.

This document explains how to set up the **Beneficiary Backend Database Schema** in PostgreSQL.

## Schema File

The schema is defined in: [schema.pgsql](https://github.com/PSMRI/ubi-beneficiary-backend/blob/main/schema.pgsql)

This file contains:

* Table definitions
* Indexes
* Constraints
* Relationships

## Applying the Schema

You can either use pgAdmin or psql CLI tool to import. Ensure to create a blank database named `uba_beneficiary_mw` before trying one of the options.

### Option A - Using pgAdmin

1. Open pgAdmin at <http://localhost:8082>
2. Login with credentials from .`env`
   * **Email**: `PGADMIN_DEFAULT_EMAIL`
   * **Password**: `PGADMIN_DEFAULT_PASSWORD`
3. Connect to the `Postgres` server
4. Right-click on the database (`uba_beneficiary_mw`) → **Query Tool**
5. Load and execute `schema.pgsql`

### Option B - Using psql CLI

Run the following command (from the project root):

```bash
docker exec -i <postgres_container_name> psql -U <db-user-name> -d uba_beneficiary_mw < schema.pgsql
```

Replace `<postgres_container_name>` with the container name (Use `docker ps` to get DB container name).<br>

## ⚠️ Note

* In the `schema.pgsql` file, replace:<br>

  ```
  Owner: <replace_with_your_db_user>
  ```

  \
  with your actual DB username.

## Verifying Schema

After running the script:

* Tables should be visible in pgAdmin under `uba_beneficiary_mw → Schemas → public → Tables`
* Indexes can be found under each table’s **Indexes** section

## Schema Updates

If schema changes are required:

1. Update `schema.pgsql` file
2. Re-run the script as described above


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