dbqm 1.0.0

Multi-database interactive query tool with fullscreen TUI

DB Query Manager (dbqm)

Fullscreen terminal application for managing and executing SQL queries across multiple databases. Supports Oracle, SQL Server, PostgreSQL, and MySQL. Built with Textual for a modern TUI experience with sidebar navigation, keyboard shortcuts, and theme support.

Features

• Fullscreen TUI — Fixed layout with sidebar navigation, breadcrumb, status bar, and keyboard-driven workflow
• Multi-database query execution — Run saved queries against Oracle (TNS or direct), SQL Server, PostgreSQL, and MySQL
• Cross-database comparison — Execute query groups and compare results side-by-side with match/diff/absent status
• DDL extraction — Extract CREATE statements: Oracle (DBMS_METADATA), PostgreSQL (pg_catalog), MySQL (SHOW CREATE)
• Package editor — Create and edit Oracle packages with spec/body tabs, inline compilation errors from ALL_ERRORS, and wizard mode
• Object browser — Inspect tables, views, stored routines (PostgreSQL/MySQL), and Oracle packages
• Ad-hoc SQL — Paste and execute SQL with automatic parameter detection and bind variable support
• Dark/Light themes — GitHub Dark (default) and GitHub Light, switchable in settings
• Data export — Export results as CSV, JSON, TXT, PNG, HTML reports, and SQL files
• Encrypted credentials — Passwords stored with Fernet symmetric encryption
• Portable configurations — Export/import configs as encrypted .dbqm bundles
• Favorites & folders — Organize queries in folders, star favorites for quick access
• Paginated results — Navigate large result sets with next/prev page controls
• Execution history — Browse recent executions with timing, row counts, and status
• Error handling — Global error modal displays details instead of crashing the app
• Audit logging — Opt-in append-only JSON log of all executions

Requirements

• Python 3.10+
• Oracle Instant Client (optional, for Oracle connections only)

Installation

git clone <repo-url>
cd dbqm

python -m venv venv
# Windows
venv\Scripts\activate
# Linux/macOS
source venv/bin/activate

pip install -r requirements.txt

Usage

Interactive mode (TUI)

python -m dbqm

On first launch, the app prompts you to configure your first database connection and generates an encryption key (.dbqm_key).

CLI mode (non-interactive)

# Execute a saved query
python -m dbqm run <query-name> --param1 value1

# Execute a query group
python -m dbqm run-group <group-name> --param1 value1

# Execute ad-hoc SQL
python -m dbqm sql "SELECT * FROM table" <connection>

# Test connections
python -m dbqm test [connection]

# List resources
python -m dbqm list connections|queries|groups

# Extract DDL
python -m dbqm ddl <object> <connection>

# Export/Import configs
python -m dbqm export-config
python -m dbqm import-config <file.dbqm>

# View history
python -m dbqm history

Output format options: --format table|json|csv and --export csv|json|txt.

Keyboard Navigation

The application is fully keyboard-driven:

Key	Action	Context
↑ ↓	Navigate items / widgets	Sidebar, lists, tables, forms
← →	Switch folder tabs	Query/group lists
Enter	Select / Confirm	Global
Escape	Go back	Global
Ctrl+B	Toggle sidebar	Global
Ctrl+Q	Quit	Global
/	Search / filter	Lists
?	Help (shortcuts)	Global
Tab	Next widget	Forms, settings
V	Vertical view	Query results
E	Export	Query/group results
R	Re-execute	Query/group results
F	Toggle flat/pivoted	Group results
S	Filter by status	Group results
H	HTML report	Group results
X	Clear history	History
N	New item	Connections, queries
D	Delete / Details	Connections, history
C	Compile Spec	Package editor
B	Compile Body	Package editor

Sidebar

Section	Options
Consultas	Executar, SQL avulso, Gerenciar
Grupos	Executar, Gerenciar
Ferramentas	DDL, Packages, Objetos, Historico
Sistema	Conexoes, Config (inclui Exportar/Importar), Sair

Query Groups & Comparison

Groups run the same logical query across multiple databases and compare results:

• Define a join key (row identifier) and comparison columns
• Optional normalization mapping for semantic equivalence (e.g., "paga" = "pago")
• Optional column mapping for mismatched column names
• Results show status per row: OK, DIFF, ABSENT
• Two display modes: flat (one table per column) and pivoted (one table per key)
• Filter results by status (divergent, absent, or combined)
• Export as HTML report with interactive filters

Project Structure

dbqm/
├── main.py                        # Entry point
├── requirements.txt               # Dependencies
├── dbqm/
│   ├── __main__.py                # python -m dbqm support
│   ├── cli.py                     # Non-interactive CLI
│   ├── ui/
│   │   ├── app.py                 # Main Textual App (layout, routing, keybindings)
│   │   ├── theme.py               # GitHub Dark/Light theme definitions
│   │   ├── utils.py               # sanitize_id, escape_markup utilities
│   │   ├── screens/               # Screen widgets (one per feature)
│   │   │   ├── query_exec.py      # Execute saved query
│   │   │   ├── query_manage.py    # Query CRUD, DE-PARA, SQL viewer
│   │   │   ├── group_exec.py      # Execute group comparison
│   │   │   ├── group_manage.py    # Group CRUD
│   │   │   ├── adhoc.py           # Ad-hoc SQL execution
│   │   │   ├── ddl.py             # DDL extraction
│   │   │   ├── browser.py         # Object browser (tables, views, packages)
│   │   │   ├── history.py         # Execution history
│   │   │   ├── connections.py     # Connection management
│   │   │   ├── package_editor.py   # Oracle package editor (spec/body, compile)
│   │   │   ├── settings.py        # Theme, audit toggle, export/import
│   │   │   └── config_port.py     # Config export/import (used by settings)
│   │   ├── widgets/               # Reusable UI components
│   │   │   ├── sidebar.py         # Collapsible sidebar with keyboard nav
│   │   │   ├── breadcrumb.py      # Navigation breadcrumb
│   │   │   ├── result_table.py    # DataTable with pagination + vertical view
│   │   │   ├── query_list.py      # Query ListView with search/filter
│   │   │   ├── group_result.py    # Flat/pivoted comparison display
│   │   │   ├── sql_viewer.py      # Syntax-highlighted SQL display
│   │   │   ├── action_bar.py      # Contextual keyboard shortcuts bar
│   │   │   ├── status_bar.py      # Connection status + counters
│   │   │   └── progress.py        # Loading indicator
│   │   ├── modals/                # Dialog screens
│   │   │   ├── param_input.py     # Query parameter input
│   │   │   ├── confirm.py         # Yes/No confirmation
│   │   │   ├── text_input.py      # Single text input
│   │   │   ├── export_picker.py   # Export format selector
│   │   │   ├── connection_form.py # Connection create/edit form
│   │   │   ├── column_maps.py     # DE-PARA value mapping
│   │   │   ├── error.py           # Error display modal
│   │   │   └── help.py            # Keyboard shortcuts overlay
│   │   └── legacy/
│   │       └── display.py         # Rich renderables for PNG/TXT export
│   ├── core/                      # Business logic (database-agnostic)
│   │   ├── db_manager.py          # Connection handling
│   │   ├── query_engine.py        # SQL execution + parameter binding
│   │   ├── group_engine.py        # Multi-database comparison
│   │   ├── exporter.py            # Export (CSV, JSON, TXT, PNG)
│   │   ├── html_report.py         # HTML comparison reports
│   │   ├── ddl_extractor.py       # Oracle DDL (DBMS_METADATA)
│   │   ├── ddl_pg.py              # PostgreSQL DDL
│   │   ├── ddl_mysql.py           # MySQL DDL
│   │   ├── object_browser.py      # Database object introspection
│   │   ├── table_browser.py       # Table data browsing
│   │   ├── package_editor.py       # Oracle package compile + errors
│   │   ├── crypto.py              # Password encryption
│   │   ├── config_portability.py  # Config import/export
│   │   ├── history.py             # Execution history
│   │   └── audit.py               # Audit logging
│   └── models/                    # Data models (JSON persistence)
│       ├── connection.py          # Connection config
│       ├── query.py               # Query definition
│       ├── group.py               # Query group config
│       └── settings.py            # App settings (theme, audit)
├── config/                        # JSON configs (gitignored)
├── exports/                       # Generated output files (gitignored)
└── tests/                         # Test suite (440+ tests)
    ├── core/                      # Core logic tests
    ├── models/                    # Model tests
    └── ui/                        # TUI widget/screen/modal tests

Key Dependencies

Library	Purpose
textual	Fullscreen TUI framework (layout, widgets, themes)
rich	Terminal formatting (used by Textual internally + exports)
oracledb	Oracle database driver
pymssql	SQL Server database driver
psycopg	PostgreSQL database driver (v3)
PyMySQL	MySQL database driver
cryptography	Fernet encryption for credentials
sqlparse	SQL analysis and classification
Pillow	PNG screenshot export

Security

• Database passwords encrypted at rest using Fernet (.dbqm_key master key)
• Configuration bundles use PBKDF2 (480,000 iterations) + Fernet
• Queries use bind variables to prevent SQL injection
• SQL identifiers validated against allowlist pattern
• Query results capped at 10,000 rows
• Config bundle imports limited to 10 MB
• HTML reports escape all user-controlled values
• Audit log files created with restricted permissions
• File open operations restricted to exports directory