code: function readStream(stream, cb) {
    const oracledb = require('oracledb');
    let data = '';
  
    if (stream.iLob.type === oracledb.CLOB) {
      stream.setEncoding('utf-8');
    } else {
      data = Buffer.alloc(0);
    }
    stream.on('error', function(err) {
      cb(err);
    });
    stream.on('data', function(chunk) {
      if (stream.iLob.type === oracledb.CLOB) {
        data += chunk;
      } else {
        data = Buffer.concat([data, chunk]);
      }
    });
    stream.on('end', function() {
      cb(null, data);
    });
  }
docs: Handle clob