text: CREATE KEYSPACE IF NOT EXISTS microf
      WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 3 }
      AND DURABLE_WRITES = true;
  
  CREATE TABLE IF NOT EXISTS microf.schema_version (
      script_name text,
      checksum text,
      executed_by text,
      executed_on timestamp,
      execution_time int,
      status text,
      PRIMARY KEY(script_name)
  );
  