⚡︎ BoxLang Module: Microsoft SQL Server JDBC Driver

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Copyright Since 2023 by Ortus Solutions, Corp
www.boxlang.io | www.ortussolutions.com

 

This module provides a BoxLang JDBC driver for Microsoft SQL Server. This module is part of the BoxLang project.

Installation

Install this module using CommandBox:

install bx-mssql

Or add it to your box.json dependencies:

{
    "dependencies": {
        "bx-mssql": "^1.0.0"
    }
}

Configuration

This driver supports various connection configurations for Microsoft SQL Server, including standard connections, named instances, and custom JDBC parameters.

Basic Configuration

See BoxLang's Defining Datasources documentation for full examples on where and how to construct a datasource connection pool.

Here's a basic example of a BoxLang datasource definition using this Microsoft SQL Server driver:

this.datasources["mssqlDB"] = {
	driver: "mssql",
	host: "localhost",
	port: "1433",
	database: "myDB",
	username: "sa",
	password: "123456Password"
};

Environment Variable Configuration

You can use environment variable substitution to populate the datasource definition:

this.datasources["mssqlDB"] = {
	driver: "mssql",
	host: "${env.MSSQL_HOST:localhost}",
	port: "${env.MSSQL_PORT:1433}",
	database: "${env.MSSQL_DATABASE:myDB}",
	username: "${env.MSSQL_USERNAME:sa}",
	password: "${env.MSSQL_PASSWORD:123456Password}"
};

Connection Types

Standard Connection with Static Port

this.datasources["standardConnection"] = {
	driver: "mssql",
	host: "sql-server.company.com",
	port: "1433",
	database: "ProductionDB",
	username: "appuser",
	password: "SecurePassword123!"
};

Generated URL: jdbc:sqlserver://sql-server.company.com:1433;databaseName=ProductionDB;trustServerCertificate=true

Named Instance Connection (Dynamic Port)

For SQL Server named instances, omit the port to use dynamic port discovery:

this.datasources["instanceConnection"] = {
	driver: "mssql",
	host: "sql-server.company.com",
	instanceName: "SQLEXPRESS",
	database: "TestDB",
	username: "sa",
	password: "Password123!"
};

Generated URL: jdbc:sqlserver://sql-server.company.com\SQLEXPRESS;databaseName=TestDB;trustServerCertificate=true

Named Instance with Static Port

You can also specify both an instance name and a static port:

this.datasources["instanceWithPort"] = {
	driver: "mssql",
	host: "sql-cluster.domain.com",
	instanceName: "NODE1",
	port: "2433",
	database: "ClusterDB",
	username: "clusteruser",
	password: "ClusterPass123!"
};

Generated URL: jdbc:sqlserver://sql-cluster.domain.com\NODE1:2433;databaseName=ClusterDB;trustServerCertificate=true

Custom JDBC Parameters

Use the custom key to pass additional JDBC connection parameters:

SSL/TLS Configuration

this.datasources["secureConnection"] = {
	driver: "mssql",
	host: "secure-sql.company.com",
	port: "1433",
	database: "SecureDB",
	username: "secureuser",
	password: "SecurePassword123!",
	custom: {
		encrypt: "true",
		trustServerCertificate: "false",
		hostNameInCertificate: "*.company.com",
		trustStore: "/path/to/truststore.jks",
		trustStorePassword: "truststorepass"
	}
};

Connection Timeout and Performance

this.datasources["performanceOptimized"] = {
	driver: "mssql",
	host: "fast-sql.company.com",
	port: "1433",
	database: "FastDB",
	username: "fastuser",
	password: "FastPassword123!",
	custom: {
		loginTimeout: "30",
		socketTimeout: "60000",
		packetSize: "8192",
		sendStringParametersAsUnicode: "false",
		selectMethod: "cursor",
		responseBuffering: "adaptive"
	}
};

Application Identification

this.datasources["identifiedConnection"] = {
	driver: "mssql",
	host: "monitored-sql.company.com",
	port: "1433",
	database: "MonitoredDB",
	username: "appuser",
	password: "AppPassword123!",
	custom: {
		applicationName: "MyBoxLangApp",
		workstationID: "WebServer01",
		applicationIntent: "ReadWrite"
	}
};

Integrated Security (Windows Authentication)

this.datasources["windowsAuth"] = {
	driver: "mssql",
	host: "domain-sql.company.com",
	port: "1433",
	database: "DomainDB",
	custom: {
		integratedSecurity: "true",
		authenticationScheme: "JavaKerberos"
	}
	// Note: username/password not needed with integrated security
};

Always Encrypted

this.datasources["encryptedConnection"] = {
	driver: "mssql",
	host: "encrypted-sql.company.com",
	port: "1433",
	database: "EncryptedDB",
	username: "encryptuser",
	password: "EncryptPassword123!",
	custom: {
		columnEncryptionSetting: "Enabled",
		keyStoreAuthentication: "JavaKeyStorePassword",
		keyStoreLocation: "/path/to/keystore.jks",
		keyStoreSecret: "keystorepassword"
	}
};

Connection Pool Configuration

You can configure HikariCP connection pool settings:

this.datasources["pooledConnection"] = {
	driver: "mssql",
	host: "pooled-sql.company.com",
	port: "1433",
	database: "PooledDB",
	username: "pooluser",
	password: "PoolPassword123!",

	// Connection pool settings
	maxConnections: 50,
	minConnections: 5,
	maxConnectionLifetime: 1800000, // 30 minutes
	idleTimeout: 600000, // 10 minutes
	connectionTimeout: 30000, // 30 seconds
	leakDetectionThreshold: 60000, // 1 minute

	custom: {
		applicationName: "PooledApp",
		loginTimeout: "15"
	}
};

Docker Development Setup

This module includes Docker Compose configuration for local development:

# Start MSSQL Server with test database
docker compose up -d

# Connect to the test database
docker compose exec mssql /opt/mssql-tools18/bin/sqlcmd -S localhost -U sa -P BoxLang123! -d boxlang_test -C

The Docker setup includes:

• SQL Server 2022 Developer Edition
• Pre-configured test database (boxlang_test)
• Sample tables with test data
• Test user with appropriate permissions

Test Database Configuration

this.datasources["testDB"] = {
	driver: "mssql",
	host: "localhost",
	port: "1433",
	database: "boxlang_test",
	username: "sa",
	password: "BoxLang123!"
};

// Or use the test user
this.datasources["testUserDB"] = {
	driver: "mssql",
	host: "localhost",
	port: "1433",
	database: "boxlang_test",
	username: "boxlang_test_user",
	password: "TestUser123!"
};

Common JDBC URL Patterns

This driver generates JDBC URLs in the following formats:

Configuration	Generated URL
Standard connection	jdbc:sqlserver://host:port;databaseName=db;params
Named instance (dynamic)	jdbc:sqlserver://host\instance;databaseName=db;params
Named instance (static)	jdbc:sqlserver://host\instance:port;databaseName=db;params
No port specified	jdbc:sqlserver://host;databaseName=db;params

Advanced Configuration Examples

Multi-Subnet Failover

this.datasources["failoverConnection"] = {
	driver: "mssql",
	host: "primary-sql.company.com,secondary-sql.company.com",
	port: "1433",
	database: "FailoverDB",
	username: "failoveruser",
	password: "FailoverPassword123!",
	custom: {
		multiSubnetFailover: "true",
		applicationIntent: "ReadWrite",
		failoverPartner: "secondary-sql.company.com"
	}
};

Read-Only Replica

this.datasources["readOnlyConnection"] = {
	driver: "mssql",
	host: "readonly-sql.company.com",
	port: "1433",
	database: "ReportingDB",
	username: "reportuser",
	password: "ReportPassword123!",
	custom: {
		applicationIntent: "ReadOnly",
		readOnlyApplicationIntent: "true"
	}
};

Azure SQL Database

this.datasources["azureConnection"] = {
	driver: "mssql",
	host: "myserver.database.windows.net",
	port: "1433",
	database: "myazuredb",
	username: "azureuser@myserver",
	password: "AzurePassword123!",
	custom: {
		encrypt: "true",
		trustServerCertificate: "false",
		hostNameInCertificate: "*.database.windows.net",
		loginTimeout: "30"
	}
};

Troubleshooting

Common Connection Issues

1. Connection Timeout: Increase loginTimeout in custom parameters
2. SSL/TLS Issues: Set trustServerCertificate: "true" for development
3. Named Instance Discovery: Ensure SQL Server Browser service is running
4. Port Blocking: Check firewall settings for port 1433 or dynamic ports
5. Authentication: Verify username/password or integrated security configuration

Enable Connection Logging

this.datasources["debugConnection"] = {
	driver: "mssql",
	// ... other settings
	custom: {
		logLevel: "DEBUG",
		logFile: "/path/to/mssql-debug.log"
	}
};

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