//SQLite example
//using Node.js
//npm install sqlite3

// Connect to the database
const sqlite3 = require('sqlite3');
let db = new sqlite3.Database('DatabaseName.db', (err) => {
    if (err) {
        return console.error(err);
    }
});

let sql = `
    SELECT
      Language, Percentage
    FROM countrylanguage
    WHERE
      CountryCode = ? AND
      Percentage > ?`;

let stmt = db.prepare(sql);      
db.serialize(() => {
    // SQL query execution
    stmt.each(["RUS", 0.5], (_, row) => {
        console.log(row.Language + ": " + 
            row.Percentage);
    });
}); 

stmt.finalize();
db.close();