Hi, after testing R) system.time(read.csv("myfile.csv")) user system elapsed 1.126 0.038 1.177
R) system.time(read.csv.sql("myfile.csv")) user system elapsed 1.405 0.025 1.439 Warning messages: 1: closing unused connection 4 () 2: closing unused connection 3 () It seems that the function is less efficient that the base one ... so ... -- View this message in context: http://r.789695.n4.nabble.com/efficient-equivalent-to-read-csv-write-csv-tp2714325p2717585.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.