go get github.com/DataDog/dd-trace-go/v2 # 2.x

import (
   "database/sql"
   "github.com/DataDog/dd-trace-go/v2/ddtrace/tracer"
   sqltrace "github.com/DataDog/dd-trace-go/contrib/database/sql/v2"
)

import (
	"database/sql"
	"github.com/DataDog/dd-trace-go/v2/ddtrace/tracer"
   sqltrace "github.com/DataDog/dd-trace-go/contrib/database/sql/v2"
)

func main() {
	// The first step is to set the dbm propagation mode when registering the driver. Note that this can also
	// be done on sqltrace.Open for more granular control over the feature.
	sqltrace.Register("postgres", &pq.Driver{}, sqltrace.WithDBMPropagation(tracer.DBMPropagationModeFull))

	// Followed by a call to Open.
	db, err := sqltrace.Open("postgres", "postgres://pqgotest:password@localhost/pqgotest?sslmode=disable")
	if err != nil {
		log.Fatal(err)
	}

	// Then, we continue using the database/sql package as we normally would, with tracing.
	rows, err := db.Query("SELECT name FROM users WHERE age=?", 27)
	if err != nil {
		log.Fatal(err)
	}
	defer rows.Close()
}

# Start the Java Agent with the required system properties
java -javaagent:/path/to/dd-java-agent.jar -Ddd.dbm.propagation.mode=full -Ddd.integration.jdbc-datasource.enabled=true -Ddd.service=my-app -Ddd.env=staging -Ddd.version=1.0 -jar path/to/your/app.jar

public class Application {
    public static void main(String[] args) {
        try {
            Connection connection = DriverManager
                    .getConnection("jdbc:postgresql://127.0.0.1/foobar?preferQueryMode=simple", "user", "password");
            Statement stmt = connection.createStatement();
            String sql = "SELECT * FROM foo";
            stmt.execute(sql);
            stmt.close();
            connection.close();
        } catch (SQLException exception) {
            //  exception logic
        }
    }
}

source 'https://rubygems.org'
gem 'datadog' # Use `'ddtrace', '>= 1.8.0'` if you're using v1.x

# Depends on your usage
gem 'mysql2'
gem 'pg'

require 'mysql2'
require 'ddtrace'

Datadog.configure do |c|
	c.service = 'billing-api'
	c.env = 'production'
	c.version = '1.3-alpha'

	c.tracing.instrument :mysql2, comment_propagation: ENV['DD_DBM_PROPAGATION_MODE']
end

client = Mysql2::Client.new(:host => "localhost", :username => "root")
client.query("SELECT 1;")

pip install "ddtrace>=1.9.0"

pip install psycopg2

pip install pymongo

import psycopg2

POSTGRES_CONFIG = {
    "host": "127.0.0.1",
    "port": 5432,
    "user": "postgres_user",
    "password": "postgres_password",
    "dbname": "postgres_db_name",
}

# connect to postgres db
conn = psycopg2.connect(**POSTGRES_CONFIG)
cursor = conn.cursor()
# execute sql queries
cursor.execute("select 'blah'")
cursor.executemany("select %s", (("foo",), ("bar",)))

from pymongo import MongoClient

# Connect to MongoDB
client = MongoClient('mongodb://localhost:27017/')
db = client['test_database']
collection = db['test_collection']

# Insert a document
collection.insert_one({"name": "test", "value": 1})

# Query documents
results = collection.find({"name": "test"})
for doc in results:
    print(doc)

npm install dd-trace@^3.17.0

// This line must come before importing any instrumented module.
const tracer = require('dd-trace').init();

const pg = require('pg')
const tracer = require('dd-trace').init({ dbmPropagationMode: 'full' })

const client = new pg.Client({
	user: 'postgres',
	password: 'postgres',
	database: 'postgres'
})

client.connect(err => {
	console.error(err);
	process.exit(1);
});

client.query('SELECT $1::text as message', ['Hello world!'], (err, result) => {
	// handle result
})