R連接oracle數據庫Error in odbcFetchRows negative length vectors are not allowed解決方法

問題： 解決方法：配置ODBC連接時，對於oracle和Sybase驅動需要設置參數believeNRows=FALSE 參數believeNRows說明：logical. Is the number of rows returned by the ODBC connection believable? Not true for some Oracle and Sybase drivers, ap

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