Google Apps 脚本运行非常慢

Question

我的 Google Sheets Apps 脚本已经超时 - 它从 MySQL 数据库中进行简单读取并加载数据，它查询一个持久的 table 主机只有 150 行，因此没有理由超时。

我的脚本是这样的：

var server = 'IP';
var port = PORT;
var dbName = 'DB';
var username = 'UN';
var password = 'PW';
var url = 'jdbc:mysql://'+server+':'+port+'/'+dbName;

function readData() {
 var conn = Jdbc.getConnection(url, username, password);
 var stmt = conn.createStatement();
 var results = stmt.executeQuery('SELECT * FROM db.table');
 var metaData=results.getMetaData();
 var numCols = metaData.getColumnCount();
 var spreadsheet = SpreadsheetApp.getActive();
 var sheet = spreadsheet.getSheetByName('SheetName');
 sheet.clearContents();
 var arr=[];

 for (var col = 0; col < numCols; col++) {
   arr.push(metaData.getColumnName(col + 1));
 }

 sheet.appendRow(arr);

while (results.next()) {
 arr=[];
 for (var col = 0; col < numCols; col++) {
   arr.push(results.getString(col + 1));
 }
 sheet.appendRow(arr);
}

results.close();
stmt.close();
/*sheet.autoResizeColumns(1, numCols+1);*/
} 

/*ScriptApp.newTrigger('readData')
.timeBased()
.everyHours(2)
.create();*/

有什么可以做的来更好地处理导入以加快导入速度吗，正如我所说，数据保存在数据库上的 table 中，table 只有大约 150行和 10-15 列，因此数据很小并且可以从 DB GUI

立即查询

Answer 1

如果您可以在流的两端编写代码并通过 ssl 访问它们，则可以实现更高的性能，尽管这会提供一点速度。

var server = 'IP';
var port = PORT;
var dbName = 'DB';
var username = 'UN';
var password = 'PW';
var url = 'jdbc:mysql://' + server + ':' + port + '/' + dbName;

function readData() {
  var conn = Jdbc.getConnection(url, username, password);
  var stmt = conn.createStatement();
  var results = stmt.executeQuery('SELECT * FROM db.table');
  var metaData = results.getMetaData();
  var numCols = metaData.getColumnCount();
  var spreadsheet = SpreadsheetApp.getActive();
  var sheet = spreadsheet.getSheetByName('SheetName');
  sheet.clearContents();
  var arr = [];//this is where you store all of the data
  let row = [];
  for (var col = 0; col < numCols; col++) {
    row.push(metaData.getColumnName(col + 1));
  }
  arr.push(row);
  while (results.next()) {
    row = [];
    for (var col = 0; col < numCols; col++) {
      row.push(results.getString(col + 1));
    }
    arr.push(row)
  }

  sheet.getRange(1, 1, arr.length, arr[0].length).setValues(arr);//this is where you save all of your data into the spreadsheet thus saving you all of the individual writes to the rows.
  results.close();
  stmt.close();
}

Class Range setValues() Method

Google Apps 脚本运行非常慢

Google Apps Script running very slow

google-apps-script

google-sheets

jdbc

Google Apps 脚本 运行 非常慢

Google Apps Script running very slow

google-apps-script

google-sheets

jdbc

Google Apps 脚本运行非常慢