nodejs如何运行oracle数据库存储过程

<code>npm install oracledb</code>

<code class="javascript">const oracledb = require('oracledb');

async function createConnection() {
  return oracledb.getConnection(connectionParams);
}</code>

<code class="javascript">const procedureName = 'MY_PROCEDURE';
const parameters = {
  input: oracledb.NUMBER,
  output: oracledb.OUT
};</code>

<code class="javascript">async function executeProcedure(connection) {
  const result = await connection.execute(
    procedureName,
    parameters,
    {
      autoCommit: true
    }
  );

  return result.outBinds;
}</code>

<code class="javascript">async function closeConnection(connection) {
  await connection.close();
}</code>

<code class="javascript">const connectionParams = {
  user: 'username',
  password: 'password',
  connectString: 'host:port/databasename'
};

createConnection()
  .then(connection => executeProcedure(connection))
  .then(result => console.log(result))
  .catch(err => console.error(err))
  .finally(() => closeConnection(connection));</code>