[R] RODBC / odbcConnectExcel Issue

[James W. MacDonald]

Hi Vishal,

Vishal Belsare wrote:
> Can someone throw light on the following problem I am having with RODBC?
> There's an Excel file I am trying to read from, it has one sheet named
> 'nameclass'.
> 
> Thanks in anticipation.
> 
> 
> Vishal Belsare
> 
> 
>> library(RODBC)
>> con = odbcConnectExcel(file.choose())
>> tbls <- sqlTables(con)
>> tbls
>                 TABLE_CAT TABLE_SCHEM TABLE_NAME   TABLE_TYPE REMARKS
> 1 T:\\data\\in\\nameclass        <NA> nameclass$ SYSTEM TABLE    <NA>
> 
>> qry = paste("SELECT * FROM '",tbls$TABLE_NAME[1],"'",sep="")
>> result = sqlQuery(con,qry)
>> result
> [1] "[RODBC] ERROR: Could not SQLExecDirect"
> 
> [2] "42000 -3506 [Microsoft][ODBC Excel Driver] Syntax error in FROM
> clause."

You want your table name to be wrapped in []. In this case the query 
should be

SELECT * FROM [nameclass$]

Best,

Jim


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-- 
James W. MacDonald, M.S.
Biostatistician
Affymetrix and cDNA Microarray Core
University of Michigan Cancer Center
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