Question

我有一个表“TABLE1”...在该表中我有2列InvoiceNumber和Total

创建创建发票的行

时

InvoiceNumber总
1个5.75
1个5.75
1个5.75
2个3.25
2个3.25
3个9.99
3个9.99
3 9.99

当然，很多其他专栏包含行详细信息......但总列数是发票总额...

我需要得到列总数的SUM，但是在invoicenumber列上选择了DISTINC ...

我希望我的解释现在更好!!! ：）

非常坦克我很感激！

老问题......

我有这样的问题...但我不知道如何编写它以使其工作......有人可以帮助我吗？非常坦克，如果我的英语不是很好，那就很抱歉......

SELECT
  SUM(1Z1.TotalStx) AS TotSTX,
  1Z1.Dept,
  1Z1.TrType,
  ItemDept.DeptNumber,
  ItemDept.VenteEncaisse
FROM
(SELECT DISTINCT 1Z1.InvoiceNumber)
JOIN ItemDept ON ItemDept.DeptNumber = 1Z1.Dept
WHERE Dept <> '0'
  AND DateHre >= '2017-11-01'
  AND DateHre <= '2017-11-30 23:59:59'
  AND ItemDept.VenteEncaisse = '1'
ORDER BY 1Z1.Id;

Answer 1

如果你想要InvoiceNumber的DISTINCT值，那么你希望得到哪个Dept，TrType等？

让我们看看new AsyncTask<String, Void, String>() { @Override protected String doInBackground(String... strings) { String YQL = String.format("select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=\"%s\")",location); String endpoint = String.format("https://query.yahooapis.com/v1/public/yql?q=%s&format=json", Uri.encode(YQL)); try { URL url = new URL(endpoint); URLConnection connection = url.openConnection(); InputStream inputStream = connection.getInputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); StringBuilder result = new StringBuilder(); boolean line; while ((line = reader.readLine()!= null)){ result.append(line); } return result.toString(); } catch (Exception e) { error = e; } return null; } /** onPostExecute checks first if there is a service failure, then if city is valid, then it populates the data from the city and goes to method serviceSuccess and populates the fields with the retrieved data */ @Override protected void onPostExecute(String s) { if (s == null && error != null){ callback.serviceFailure(error); return; } try { JSONObject data = new JSONObject(s); JSONObject queryResults = data.optJSONObject("query"); int count = queryResults.optInt("count"); if (count == 0){ callback.serviceFailure(new LocationWeatherException("No Weather Info Found for" + location)); return; } Channel channel = new Channel(); channel.populate(queryResults.optJSONObject("results").optJSONObject("channel")); callback.serviceSuccess(channel); } catch (JSONException e) { callback.serviceFailure(e); } } }.execute(location); }。如果它显示SHOW CREATE TABLE 1Z1，则不存在歧义， PRIMARY KEY(InvoiceNumber)是不必要的。如果那不是PK，那么你需要弄清楚如何在前进之前处理歧义。

DISTINCT中有哪个表格？

MariaDB选择SUM wit在列

1 个答案: