RODBC string getting truncated

Posted by sayan dasgupta on Stack Overflow See other posts from Stack Overflow or by sayan dasgupta
Published on 2011-01-07T07:36:53Z Indexed on 2011/01/07 8:53 UTC
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Hi all,

I am fetching data from MySql Server into R using RODBC.
So in one column of the database is a character vector

SELECT MAX(CHAR_LENGTH(column)) FROM reqtable;

RETURNS 26566

Now I will show you an example how I am running into the problem

`library(RODBC)
 con <- odbcConnect("mysqlcon")
 rslts <- as.numeric(sqlQuery(con,
                          "SELECT CHAR_LENGTH(column) FROM reqtable LIMIT 10",
                          as.is=TRUE)[,1])

` returns

> rslts
 [1]  62  31  17 103  30 741  28  73  25 357

where as rslts <- nchar(as.character(sqlQuery(con, "SELECT column FROM reqtable LIMIT 10", as.is=TRUE)[,1])) returns

> rslts
 [1]  62  31  17 103  30 255  28  73  25 255

So strings with length > 255 is getting truncated at 255. Is there a way I can get the full string.

Thanks

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