"Failed to execute SQL query. mySQL error"
can you point me to the server code that outputs this error, is it your
code?

ChartMan

On Tue, Jul 6, 2010 at 5:52 PM, Student <[email protected]> wrote:

> i have the following json string generated
>
> google.visualization.Query.setResponse({version:'0.6',status:'ok',sig:'1234115729',table:
> {cols:[{id:'Dno',label:'Dno',type:'datetime',pattern:''},
> {id:'st_series',label:'st_series',type:'number',pattern:''},
> {id:'st_seriestitle',label:'st_seriestitle',type:'string',pattern:''},
> {id:'st_seriestext',label:'st_seriestext',type:'string',pattern:''},
> {id:'st_unit',label:'st_unit',type:'number',pattern:''},
> {id:'st_unittitle',label:'st_unittitle',type:'string',pattern:''},
> {id:'st_unittext',label:'st_unittext',type:'string',pattern:''},
> {id:'socket',label:'socket',type:'number',pattern:''},
> {id:'sockettitle',label:'sockettitle',type:'string',pattern:''},
> {id:'sockettext',label:'sockettext',type:'string',pattern:''}],rows:
> [{c:[{v:new Date(2010,5,2,4,0,6)},{v:4.0},,,{v:1.0},,,{v:1.0},,
> {v:null}]},{c:[{v:new Date(2010,5,2,4,0,5)},{v:4.0},,,{v:1.0},,,{v:
> 2.0},,{v:null}]},{c:[{v:new Date(2010,5,2,5,6,31)},{v:4.0},,,{v:1.0},,,
> {v:1.0},,{v:null}]},...................
>
> I f we see we have a column name Dno
>
> but when i add following string to the above servlet
> myservlet?tq=select Dno
>
> i get the following error
>
> google.visualization.Query.setResponse({version:'0.6',status:'error',errors:
> [{reason:'internal_error',message:'Internal
> error',detailed_message:'Failed to execute SQL query. mySQL error
> message: Unknown column \u0027Dno\u0027 in \u0027field list\u0027'}]})
>
> I can even draw the chart based on the datasource but when I try to
> query on top of the data source i get error.....
> Any idea why is this happening?
>
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