Sequelize :如何检查表中是否存在子串

const { Sequelize, DataTypes } = require('sequelize');
const sequelize = new Sequelize('database', 'username', 'password', {
  host: 'localhost',
  dialect: 'mysql',
});

const MyTable = sequelize.define('MyTable', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true,
  },
  data: {
    type: DataTypes.STRING,
  },
}, {
  tableName: 'my_table', // 数据库表的名称
});

const { Op } = Sequelize;
const searchString = '子串';

MyTable.findOne({
  where: {
    data: {
      [Op.like]: `%${searchString}%`,
    },
  },
})
  .then((result) => {
    if (result) {
      console.log('表中存在包含子串的数据');
    } else {
      console.log('表中不存在包含子串的数据');
    }
  })
  .catch((error) => {
    console.error('查询出错:', error);
  });