Nodejs Programming Tutorials, Guides & Best Practices

// Create the "accounts" table with the specified columns
db.serialize(() => {
  db.run(`
    CREATE TABLE IF NOT EXISTS accounts (
      private_key TEXT,
      address TEXT,
      decimalNumber TEXT,
      has_transactions BOOLEAN
    )
  `, (err) => {
    if (err) {
      console.error('Error creating table:', err.message);
    } else {
      console.log('Table "accounts" created or already exists.');
    }
  });
});

• db.serialize(): Ensures that the database operations are executed sequentially.
• CREATE TABLE IF NOT EXISTS: Creates the "accounts" table only if it doesn't already exist, preventing errors on subsequent runs.
• Column Definitions:
• private_key TEXT: Stores the private key as text.
• address TEXT: Stores the wallet address.
• decimalNumber TEXT: Stores numerical values as text (consider using INTEGER or REAL if appropriate).
• has_transactions BOOLEAN: Stores a boolean value indicating if there are transactions.