Home/ Questions/Q 4091684
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-20T19:23:53+00:00

I am using this query to fetch data from webserver onto my iPhone app

  • 0

I am using this query to fetch data from webserver onto my iPhone app using JSON Parsing.

SELECT a.FundID, a.FundName, a.Strike, a.LongShort, a.Current, a.Points, a.OpenClose
FROM tbl_Positions a, tbl_FundStatic b
WHERE b.FundID = a.FundID
AND b.UserID = '14'
AND a.OpenClose != 'Close'
UNION 
SELECT c.FundID, c.FundName, '0' AS Strike, "-" AS LongShort, b.LastTradePrice, '0' AS Points, "-" AS OpenClose
FROM tbl_FundStatic c, tbl_MarketData b
WHERE c.UserID = '14'
AND b.IndexCode = c.`Index` 
AND c.FundID NOT 
IN (
     SELECT DISTINCT (FundID)
     FROM tbl_Positions
   )

Ideally it should return data like

enter image description here

But it shows junk value (like “MA==”,etc) for the columns Points and Strike.

What could be wrong?

EDIT:

I am using SBJSON Parser.

I am using following code to parse data into JSON String on server side:

        DataTable dt = new DataTable();
        MySqlDataAdapter da = new MySqlDataAdapter(cmd);
        da.Fill(dt);
        objMyCon.Close();

        String jsonString = JsonConvert.SerializeObject(dt);
        String finalString = "{\"ExecuteTrade\":";
        finalString += jsonString;
        finalString += "}";

        return finalString;

finalString Value

{"ExecuteTrade":[{"FundID":28,"FundName":"Sam Fund 2","Strike":"MTIxMzA=","LongShort":"Long","Current":11985.00,"Points":"LTE0NQ==","OpenClose":"Open"},
{"FundID":27,"FundName":"Sam Fund 1","Strike":"MTE5ODU=","LongShort":"Long","Current":11985.00,"Points":"NTAwMDA=","OpenClose":"Open"},
{"FundID":32,"FundName":"Sam Fund 3","Strike":"MjIwMDA=","LongShort":"Long","Current":14000.00,"Points":"NjAwMA==","OpenClose":"Open"},
{"FundID":45,"FundName":"Rob Fund test","Strike":"OTk5OQ==","LongShort":"NULL","Current":11984.61,"Points":"OTk5OQ==","OpenClose":"NULL"},   
   {"FundID":46,"FundName":"newtestfund5th","Strike":"OTk5OQ==","LongShort":"NULL","Current":11984.61,"Points":"OTk5OQ==","OpenClose":"NULL"}]}

This is the Datatable:

enter image description here

On app side I am using 

NSDictionary *diction = [responseString JSONValue];

NOTE: The Query works fine when executed on server.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Changed my Query to 

    SELECT a.FundID, a.FundName, a.Strike, a.LongShort, a.Current, a.Points, a.OpenClose
FROM tbl_Positions a, tbl_FundStatic b
WHERE b.FundID = a.FundID
AND b.UserID = '14'
AND a.OpenClose != 'Close'
UNION 
SELECT c.FundID, c.FundName, 0 AS Strike, "-" AS LongShort, b.LastTradePrice, 0 AS Points, "-" AS OpenClose
FROM tbl_FundStatic c, tbl_MarketData b
WHERE c.UserID = '14'
AND b.IndexCode = c.`Index` 
AND c.FundID NOT 
IN 
(
      SELECT DISTINCT (FundID)
      FROM tbl_Positions
)

    Just removed the single quotes ' around the decimal values.

    • 0