我正在使用Google Data Studio,并尝试从第三方系统中获取数据。在这种情况下,第三方系统会出现问题,因为它不允许进行SQL连接。因此,我分别使用2个URL来获取数据,并将两个表(customer_order表和Customer_Order_Demand表)连接在一起。但是问题是在一个表中存在一个字段(Order_NO),该字段具有多对多关系。根据我的代码,在连接两个表后,在Order_No列中仅获得第一个值。我想按相应日期显示每个商品的订单数。
Customer Order Demand Table
+-----------------------------+
| id | item | Date |
|-----|----------|------------|
| 1 | BLU | 7/10/2020 |
| 2 | PM | 7/20/2020 |
| 3 | BLU | 7/23/2020 |
+-----------------------------+
Customer Order Table
+---------------------------------------------------------+
| id | COD_id | Order_NO | Date |
|-----|----------------------------------|----------------|
| 1 | 1 | #100 | 7/10/2020 |
| 2 | 1 | #130 | 7/10/2020 |
| 3 | 2 | #200 | 7/20/2020 |
| 4 | 3 | #500 | 7/23/2020 |
+---------------------------------------------------------+
Expected Table
+-----------------------------------------------+
| | Item | Date | Order_NO |
|-----|----------|------------|-----------------|
| 1 | BLU | 7/10/2020 | #100 /#130 |
| 2 | PM | 7/20/2020 | #200 |
| 3 | BLU | 7/23/2020 | #500 |
+-----------------------------------------------+
var url=[
'http://test.smartapps.lk/rest/api/selectQuery?sessionId=' + SessionId + '&maxRows=10&query=select id, Item, Date from Customer_Order_demand &output=json'
].join('');
var url2=[
'http://test.smartapps.lk/rest/api/selectQuery?sessionId=' + SessionId + '&maxRows=10&query=select id,Order_NO from Customer_Order &output=json'
].join('');
var responseID2 = UrlFetchApp.fetch(url);
var responseID3 = UrlFetchApp.fetch(url2);
var table1 = JSON.parse(responseID2.getContentText());
var table2 = JSON.parse(responseID3.getContentText());
var finalArray = [];
for(var i in table1){
for(var j in table2){
//Joining two tables
if(table1[i][0]==table2[j][0]){
// converting to json object
var newObj = {
"Item": table1[i][1],
"Date":table1[i][2],
"Order_NO": table2[j][1]
};
finalArray.push(newObj);
}
}
}
return finalArray;