如何进行一次异步数据库调用并为后续函数保存输出?

我正在尽量减少数据库查询。目标是 一 在其他功能中查询和使用数据。到目前为止,我有以下代码:

async function GetCoverage(scroll_path) {
  const apiName = "xxxx";
  const path = "/scrolls/" + scroll_path;
  const myInit = {
    headers: {},
    response: false,
  };
  const response = await API.get(apiName, path, myInit);
  console.log("response:", response);
  return response.Items;
}

let dataGlobal;

const getData = async () => {
  const response = await GetCoverage("all");
  dataGlobal = response;
  return response;
};

(async () => {
  await getData();
  console.log("dataGlobal:", dataGlobal);
})();

问题是每个 await getData() 调用驱动另一个数据库查询。我该如何避免这种情况?