# Usage Guide

## 1. Login

1. Open the app in a browser (default: http://localhost:8080).
2. In the top login panel enter your **MariaDB username** and **password**.
3. Click **Login**.
4. On success the sidebar populates with a database → table tree.

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## 2. Browse Data

1. Click any table in the sidebar.
2. The central grid loads the table's data:
   - Each column shows a **header filter** input — type to filter that column.
   - Pagination controls appear at the bottom; data is fetched server-side.

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## 3. CRUD Operations

### Insert a row

1. Click **Insert** in the toolbar.
2. A new empty row appears in the grid.
3. Fill in the cells and click **Save row**.

### Edit a row

1. Click a row to select it.
2. Edit cells directly in the grid.
3. Click **Save row** to persist changes.

> Updates are performed by primary key. Tables without a primary key should be treated as read-only.

### Delete rows

1. Select one or more rows (checkbox column on the left).
2. Click **Delete**.
3. Confirm the deletion dialog.

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## 4. CSV Import

1. Click **Import CSV** in the toolbar.
2. Select a `.csv` file from your filesystem.
3. The app inserts rows one by one and reports per-row errors if any.

CSV requirements:
- First row must be a header row matching column names.
- Data types must match the target table schema.

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## 5. CSV Export

1. Click **Export CSV** in the toolbar.
2. The current table data (with active filters applied) is downloaded as a `.csv` file.

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## 6. Database Backup

1. Click **Backup** in the toolbar.
2. A mysqldump of the current database is generated and downloaded as a `.sql` file.